diff --git a/.gitignore b/.gitignore
index 42ebec6aa6..65381e1023 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,7 @@ noBackup/
 *.pro.user
 *.pro.autosave
 *.qml.autosave
+.update.timestamp
 .vscode
 bin/
 /bottles/
diff --git a/.gitmodules b/.gitmodules
index e741ea9740..3e1d9b65f4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -91,3 +91,9 @@
 [submodule "vendor/nim-status-go"]
 	path = vendor/nim-status-go
 	url = https://github.com/status-im/nim-status-go.git
+[submodule "vendor/nim-task-runner"]
+	path = vendor/nim-task-runner
+	url = https://github.com/status-im/nim-task-runner.git
+[submodule "vendor/edn.nim"]
+	path = vendor/edn.nim
+	url = https://github.com/status-im/edn.nim.git
diff --git a/src/app/chat/views/stickers.nim b/src/app/chat/views/stickers.nim
index 00e6e39887..25016b64aa 100644
--- a/src/app/chat/views/stickers.nim
+++ b/src/app/chat/views/stickers.nim
@@ -5,6 +5,7 @@ import ../../../status/libstatus/stickers as status_stickers
 import ../../../status/libstatus/wallet as status_wallet
 import sticker_pack_list, sticker_list, chat_item
 import json_serialization
+import ../../../status/tasks/task_manager
 
 logScope:
   topics = "stickers-view"
@@ -30,10 +31,10 @@ QtObject:
     result.recentStickers = newStickerList()
     result.activeChannel = activeChannel
     result.setup
-    
+
   proc addStickerPackToList*(self: StickersView, stickerPack: StickerPack, isInstalled, isBought, isPending: bool) =
     self.stickerPacks.addStickerPackToList(stickerPack, newStickerList(stickerPack.stickers), isInstalled, isBought, isPending)
-  
+
   proc getStickerPackList(self: StickersView): QVariant {.slot.} =
     newQVariant(self.stickerPacks)
 
@@ -41,19 +42,12 @@ QtObject:
     read = getStickerPackList
 
   proc transactionWasSent*(self: StickersView, txResult: string) {.signal.}
-  
+
   proc transactionCompleted*(self: StickersView, success: bool, txHash: string, revertReason: string = "") {.signal.}
 
   proc estimate*(self: StickersView, packId: int, address: string, price: string, uuid: string) {.slot.} =
-    let status_stickers = self.status.stickers
-    spawnAndSend(self, "setGasEstimate") do:
-      var success: bool
-      var estimate = status_stickers.estimateGas(packId, address, price, success)
-      if not success:
-        estimate = 325000
-      let result: tuple[estimate: int, uuid: string] = (estimate, uuid)
-      Json.encode(result)
-  
+    self.status.taskManager.threadPool.stickers.stickerPackPurchaseGasEstimate(cast[pointer](self.vptr), "setGasEstimate", packId, address, price, uuid)
+
   proc gasEstimateReturned*(self: StickersView, estimate: int, uuid: string) {.signal.}
 
   proc setGasEstimate*(self: StickersView, estimateJson: string) {.slot.} =
@@ -63,7 +57,7 @@ QtObject:
   proc buy*(self: StickersView, packId: int, address: string, price: string, gas: string, gasPrice: string, password: string): string {.slot.} =
     var success: bool
     let response = self.status.stickers.buyPack(packId, address, price, gas, gasPrice, password, success)
-    # TODO: 
+    # TODO:
     # check if response["error"] is not null and handle the error
     result = $(%* { "result": %response, "success": %success })
     if success:
@@ -133,7 +127,7 @@ QtObject:
 
   proc resetBuyAttempt*(self: StickersView, packId: int) {.slot.} =
     self.stickerPacks.updateStickerPackInList(packId, false, false)
-  
+
   proc uninstall*(self: StickersView, packId: int) {.slot.} =
     self.status.stickers.uninstallStickerPack(packId)
     self.status.stickers.removeRecentStickers(packId)
@@ -156,4 +150,4 @@ QtObject:
   proc send*(self: StickersView, hash: string, pack: int) {.slot.} =
     let sticker = Sticker(hash: hash, packId: pack)
     self.addRecentStickerToList(sticker)
-    self.status.chat.sendSticker(self.activeChannel.id, sticker)
\ No newline at end of file
+    self.status.chat.sendSticker(self.activeChannel.id, sticker)
diff --git a/src/app/wallet/view.nim b/src/app/wallet/view.nim
index 804c5a6416..9d4ffc80df 100644
--- a/src/app/wallet/view.nim
+++ b/src/app/wallet/view.nim
@@ -491,9 +491,8 @@ QtObject:
   proc gasPricePredictionsChanged*(self: WalletView) {.signal.}
 
   proc getGasPricePredictions*(self: WalletView) {.slot.} =
-    let walletModel = self.status.wallet
     spawnAndSend(self, "getGasPricePredictionsResult") do:
-      $ %walletModel.getGasPricePredictions()
+      $ %getGasPricePredictions2()
 
   proc getGasPricePredictionsResult(self: WalletView, gasPricePredictionsJson: string) {.slot.} =
     let prediction = Json.decode(gasPricePredictionsJson, GasPricePrediction)
diff --git a/src/nim_status_client.nim b/src/nim_status_client.nim
index 94fe69f325..d089d97a0d 100644
--- a/src/nim_status_client.nim
+++ b/src/nim_status_client.nim
@@ -10,11 +10,13 @@ import app/onboarding/core as onboarding
 import app/login/core as login
 import app/provider/core as provider
 import status/signals/core as signals
+import status/tasks/task_manager
 import status/libstatus/types
 import status/libstatus/accounts/constants
 import status_go
 import status/status as statuslib
 import ./eventemitter
+import chronos, task_runner
 
 var signalsQObjPointer: pointer
 
@@ -28,7 +30,9 @@ proc mainProc() =
     else:
       "/../fleets.json"
 
-  let status = statuslib.newStatusInstance(readFile(joinPath(getAppDir(), fleets)))
+  let taskManager = newTaskManager()
+  taskManager.init()
+  let status = statuslib.newStatusInstance(taskManager, readFile(joinPath(getAppDir(), fleets)))
   status.initNode()
 
   enableHDPI()
@@ -132,6 +136,7 @@ proc mainProc() =
     wallet.checkPendingTransactions()
     wallet.start()
 
+
   engine.setRootContextProperty("loginModel", login.variant)
   engine.setRootContextProperty("onboardingModel", onboarding.variant)
 
@@ -152,6 +157,7 @@ proc mainProc() =
     profile.delete()
     utilsController.delete()
     browserController.delete()
+    taskManager.teardown()
 
 
   # Initialize only controllers whose init functions
@@ -188,9 +194,7 @@ proc mainProc() =
   # it will be passed as a regular C function to libstatus. This means that
   # we cannot capture any local variables here (we must rely on globals)
   var callback: SignalCallback = proc(p0: cstring) {.cdecl.} =
-    setupForeignThreadGc()
     signal_handler(signalsQObjPointer, p0, "receiveSignal")
-    tearDownForeignThreadGc()
 
   status_go.setSignalEventCallback(callback)
 
diff --git a/src/status/ens.nim b/src/status/ens.nim
index 9ce98762ce..dd7d0227e6 100644
--- a/src/status/ens.nim
+++ b/src/status/ens.nim
@@ -21,12 +21,12 @@ const domain* = ".stateofus.eth"
 
 proc userName*(ensName: string, removeSuffix: bool = false): string =
   if ensName != "" and ensName.endsWith(domain):
-    if removeSuffix: 
+    if removeSuffix:
       result = ensName.split(".")[0]
     else:
       result = ensName
   else:
-    if ensName.endsWith(".eth") and removeSuffix: 
+    if ensName.endsWith(".eth") and removeSuffix:
       return ensName.split(".")[0]
     result = ensName
 
@@ -63,7 +63,7 @@ proc namehash*(ensName:string): string =
     concatArrays[0..31] = node
     concatArrays[32..63] = elem
     node = keccak_256.digest(concatArrays).data
-  
+
   result = "0x" & node.toHex()
 
 const registry* = "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e"
@@ -81,7 +81,7 @@ proc resolver*(usernameHash: string): string =
   result = "0x" & resolverAddr
 
 const owner_signature = "0x02571be3" # owner(bytes32 node)
-proc owner*(username: string): string = 
+proc owner*(username: string): string =
   var userNameHash = namehash(addDomain(username))
   userNameHash.removePrefix("0x")
   let payload = %* [{
@@ -97,7 +97,7 @@ proc owner*(username: string): string =
   result = "0x" & ownerAddr.substr(26)
 
 const pubkey_signature = "0xc8690233" # pubkey(bytes32 node)
-proc pubkey*(username: string): string = 
+proc pubkey*(username: string): string =
   var userNameHash = namehash(addDomain(username))
   userNameHash.removePrefix("0x")
   let ensResolver = resolver(userNameHash)
@@ -116,7 +116,7 @@ proc pubkey*(username: string): string =
     result = "0x04" & pubkey
 
 const address_signature = "0x3b3b57de" # addr(bytes32 node)
-proc address*(username: string): string = 
+proc address*(username: string): string =
   var userNameHash = namehash(addDomain(username))
   userNameHash.removePrefix("0x")
   let ensResolver = resolver(userNameHash)
@@ -133,7 +133,7 @@ proc address*(username: string): string =
   result = "0x" & address.substr(26)
 
 const contenthash_signature = "0xbc1c58d1" # contenthash(bytes32)
-proc contenthash*(ensAddr: string): string = 
+proc contenthash*(ensAddr: string): string =
   var ensHash = namehash(ensAddr)
   ensHash.removePrefix("0x")
   let ensResolver = resolver(ensHash)
@@ -147,7 +147,7 @@ proc contenthash*(ensAddr: string): string =
   let bytesResponse = response.parseJson["result"].getStr;
   if bytesResponse == "0x":
     return ""
-  
+
   let size = fromHex(Stuint[256], bytesResponse[66..129]).truncate(int)
   result = bytesResponse[130..129+size*2]
 
@@ -159,7 +159,7 @@ proc getPrice*(): Stuint[256] =
       "to": $contract.address,
       "data": contract.methods["getPrice"].encodeAbi()
     }, "latest"]
-  
+
   let responseStr = callPrivateRPC("eth_call", payload)
   let response = Json.decode(responseStr, RpcResponse)
   if not response.error.isNil:
@@ -180,7 +180,7 @@ proc registerUsernameEstimateGas*(username: string, address: string, pubKey: str
     ensUsernamesContract = contracts.getContract("ens-usernames")
     sntContract = contracts.getSntContract()
     price = getPrice()
-  
+
   let
     register = Register(label: label, account: parseAddress(address), x: x, y: y)
     registerAbiEncoded = ensUsernamesContract.methods["register"].encodeAbi(register)
@@ -188,7 +188,7 @@ proc registerUsernameEstimateGas*(username: string, address: string, pubKey: str
     approveAndCallAbiEncoded = sntContract.methods["approveAndCall"].encodeAbi(approveAndCallObj)
 
   var tx = transactions.buildTokenTransaction(parseAddress(address), sntContract.address, "", "")
-  
+
   let response = sntContract.methods["approveAndCall"].estimateGas(tx, approveAndCallObj, success)
   if success:
     result = fromHex[int](response)
@@ -202,11 +202,11 @@ proc registerUsername*(username, pubKey, address, gas, gasPrice,  password: stri
     ensUsernamesContract = contracts.getContract("ens-usernames")
     sntContract = contracts.getSntContract()
     price = getPrice()
-  
+
   let
     register = Register(label: label, account: parseAddress(address), x: x, y: y)
     registerAbiEncoded = ensUsernamesContract.methods["register"].encodeAbi(register)
-    approveAndCallObj = ApproveAndCall[132](to: ensUsernamesContract.address, value: price, data: DynamicBytes[132].fromHex(registerAbiEncoded)) 
+    approveAndCallObj = ApproveAndCall[132](to: ensUsernamesContract.address, value: price, data: DynamicBytes[132].fromHex(registerAbiEncoded))
 
   var tx = transactions.buildTokenTransaction(parseAddress(address), sntContract.address, gas, gasPrice)
 
@@ -227,7 +227,7 @@ proc setPubKeyEstimateGas*(username: string, address: string, pubKey: string, su
     resolverAddress = resolver(hash)
 
   var tx = transactions.buildTokenTransaction(parseAddress(address), parseAddress(resolverAddress), "", "")
-  
+
   try:
     let response = resolverContract.methods["setPubkey"].estimateGas(tx, setPubkey, success)
     if success:
@@ -295,8 +295,10 @@ proc decodeENSContentHash*(value: string): tuple[ensType: ENSType, output: strin
       # 12 = identifies sha2-256 hash
       # 20 = multihash length = 32
       # ...rest = multihash digest
-      let multiHash = MultiHash.init(nimcrypto.fromHex(multiHashStr)).get()
-      return (ENSType.IPFS, $Cid.init(CIDv0, MultiCodec.codec(codec), multiHash))
+      let
+        multiHash = MultiHash.init(nimcrypto.fromHex(multiHashStr)).get()
+        decoded = Cid.init(CIDv0, MultiCodec.codec(codec), multiHash).get()
+      return (ENSType.IPFS, $decoded)
     except Exception as e:
       error "Error decoding ENS contenthash", hash=value, exception=e.msg
       raise
diff --git a/src/status/libstatus/eth/contracts.nim b/src/status/libstatus/eth/contracts.nim
index 5c98cf4e23..aa7896061b 100644
--- a/src/status/libstatus/eth/contracts.nim
+++ b/src/status/libstatus/eth/contracts.nim
@@ -1,5 +1,5 @@
 import
-  sequtils, sugar, macros, tables, strutils, locks
+  sequtils, sugar, macros, tables, strutils
 
 import
   web3/ethtypes, stew/byteutils, nimcrypto, json_serialization, chronicles
@@ -16,9 +16,6 @@ export
 logScope:
   topics = "contracts"
 
-var contractsLock: Lock
-initLock(contractsLock)
-
 const ERC20_METHODS = @[
   ("name", Method(signature: "name()")),
   ("symbol", Method(signature: "symbol()")),
@@ -80,186 +77,193 @@ proc newErc721Contract(name: string, network: Network, address: Address, symbol:
   Erc721Contract(name: name, network: network, address: address, symbol: symbol, hasIcon: hasIcon, methods: ERC721_ENUMERABLE_METHODS.concat(addlMethods).toTable)
 
 
-var ALL_CONTRACTS {.guard: contractsLock.}: seq[Contract] = @[
-  # Mainnet contracts
-  newErc20Contract("Status Network Token", Network.Mainnet, parseAddress("0x744d70fdbe2ba4cf95131626614a1763df805b9e"), "SNT", 18, true),
-  newErc20Contract("Dai Stablecoin", Network.Mainnet, parseAddress("0x6b175474e89094c44da98b954eedeac495271d0f"), "DAI", 18, true),
-  newErc20Contract("Sai Stablecoin v1.0", Network.Mainnet, parseAddress("0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"), "SAI", 18, true),
-  newErc20Contract("MKR", Network.Mainnet, parseAddress("0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2"), "MKR", 18, true),
-  newErc20Contract("EOS", Network.Mainnet, parseAddress("0x86fa049857e0209aa7d9e616f7eb3b3b78ecfdb0"), "EOS", 18, true),
-  newErc20Contract("OMGToken", Network.Mainnet, parseAddress("0xd26114cd6ee289accf82350c8d8487fedb8a0c07"), "OMG", 18, true),
-  newErc20Contract("Populous Platform", Network.Mainnet, parseAddress("0xd4fa1460f537bb9085d22c7bccb5dd450ef28e3a"), "PPT", 8, true),
-  newErc20Contract("Reputation", Network.Mainnet, parseAddress("0x1985365e9f78359a9b6ad760e32412f4a445e862"), "REP", 18, true),
-  newErc20Contract("PowerLedger", Network.Mainnet, parseAddress("0x595832f8fc6bf59c85c527fec3740a1b7a361269"), "POWR", 6, true),
-  newErc20Contract("TenX Pay Token", Network.Mainnet, parseAddress("0xb97048628db6b661d4c2aa833e95dbe1a905b280"), "PAY", 18, true),
-  newErc20Contract("Veros", Network.Mainnet, parseAddress("0x92e78dae1315067a8819efd6dca432de9dcde2e9"), "VRS", 6, false),
-  newErc20Contract("Golem Network Token", Network.Mainnet, parseAddress("0xa74476443119a942de498590fe1f2454d7d4ac0d"), "GNT", 18, true),
-  newErc20Contract("Salt", Network.Mainnet, parseAddress("0x4156d3342d5c385a87d264f90653733592000581"), "SALT", 8, true),
-  newErc20Contract("BNB", Network.Mainnet, parseAddress("0xb8c77482e45f1f44de1745f52c74426c631bdd52"), "BNB", 18, true),
-  newErc20Contract("Basic Attention Token", Network.Mainnet, parseAddress("0x0d8775f648430679a709e98d2b0cb6250d2887ef"), "BAT", 18, true),
-  newErc20Contract("Kyber Network Crystal", Network.Mainnet, parseAddress("0xdd974d5c2e2928dea5f71b9825b8b646686bd200"), "KNC", 18, true),
-  newErc20Contract("BTU Protocol", Network.Mainnet, parseAddress("0xb683D83a532e2Cb7DFa5275eED3698436371cc9f"), "BTU", 18, true),
-  newErc20Contract("Digix DAO", Network.Mainnet, parseAddress("0xe0b7927c4af23765cb51314a0e0521a9645f0e2a"), "DGD", 9, true),
-  newErc20Contract("Aeternity", Network.Mainnet, parseAddress("0x5ca9a71b1d01849c0a95490cc00559717fcf0d1d"), "AE", 18, true),
-  newErc20Contract("Tronix", Network.Mainnet, parseAddress("0xf230b790e05390fc8295f4d3f60332c93bed42e2"), "TRX", 6, true),
-  newErc20Contract("Ethos", Network.Mainnet, parseAddress("0x5af2be193a6abca9c8817001f45744777db30756"), "ETHOS", 8, true),
-  newErc20Contract("Raiden Token", Network.Mainnet, parseAddress("0x255aa6df07540cb5d3d297f0d0d4d84cb52bc8e6"), "RDN", 18, true),
-  newErc20Contract("SingularDTV", Network.Mainnet, parseAddress("0xaec2e87e0a235266d9c5adc9deb4b2e29b54d009"), "SNGLS", 0, true),
-  newErc20Contract("Gnosis Token", Network.Mainnet, parseAddress("0x6810e776880c02933d47db1b9fc05908e5386b96"), "GNO", 18, true),
-  newErc20Contract("StorjToken", Network.Mainnet, parseAddress("0xb64ef51c888972c908cfacf59b47c1afbc0ab8ac"), "STORJ", 8, true),
-  newErc20Contract("AdEx", Network.Mainnet, parseAddress("0x4470bb87d77b963a013db939be332f927f2b992e"), "ADX", 4, false),
-  newErc20Contract("FunFair", Network.Mainnet, parseAddress("0x419d0d8bdd9af5e606ae2232ed285aff190e711b"), "FUN", 8, true),
-  newErc20Contract("Civic", Network.Mainnet, parseAddress("0x41e5560054824ea6b0732e656e3ad64e20e94e45"), "CVC", 8, true),
-  newErc20Contract("ICONOMI", Network.Mainnet, parseAddress("0x888666ca69e0f178ded6d75b5726cee99a87d698"), "ICN", 18, true),
-  newErc20Contract("Walton Token", Network.Mainnet, parseAddress("0xb7cb1c96db6b22b0d3d9536e0108d062bd488f74"), "WTC", 18, true),
-  newErc20Contract("Bytom", Network.Mainnet, parseAddress("0xcb97e65f07da24d46bcdd078ebebd7c6e6e3d750"), "BTM", 8, true),
-  newErc20Contract("0x Protocol Token", Network.Mainnet, parseAddress("0xe41d2489571d322189246dafa5ebde1f4699f498"), "ZRX", 18, true),
-  newErc20Contract("Bancor Network Token", Network.Mainnet, parseAddress("0x1f573d6fb3f13d689ff844b4ce37794d79a7ff1c"), "BNT", 18, true),
-  newErc20Contract("Metal", Network.Mainnet, parseAddress("0xf433089366899d83a9f26a773d59ec7ecf30355e"), "MTL", 8, false),
-  newErc20Contract("PayPie", Network.Mainnet, parseAddress("0xc42209accc14029c1012fb5680d95fbd6036e2a0"), "PPP", 18, true),
-  newErc20Contract("ChainLink Token", Network.Mainnet, parseAddress("0x514910771af9ca656af840dff83e8264ecf986ca"), "LINK", 18, true),
-  newErc20Contract("Kin", Network.Mainnet, parseAddress("0x818fc6c2ec5986bc6e2cbf00939d90556ab12ce5"), "KIN", 18, true),
-  newErc20Contract("Aragon Network Token", Network.Mainnet, parseAddress("0x960b236a07cf122663c4303350609a66a7b288c0"), "ANT", 18, true),
-  newErc20Contract("MobileGo Token", Network.Mainnet, parseAddress("0x40395044ac3c0c57051906da938b54bd6557f212"), "MGO", 8, true),
-  newErc20Contract("Monaco", Network.Mainnet, parseAddress("0xb63b606ac810a52cca15e44bb630fd42d8d1d83d"), "MCO", 8, true),
-  newErc20Contract("loopring", Network.Mainnet, parseAddress("0xef68e7c694f40c8202821edf525de3782458639f"), "LRC", 18, true),
-  newErc20Contract("Zeus Shield Coin", Network.Mainnet, parseAddress("0x7a41e0517a5eca4fdbc7fbeba4d4c47b9ff6dc63"), "ZSC", 18, true),
-  newErc20Contract("Streamr DATAcoin", Network.Mainnet, parseAddress("0x0cf0ee63788a0849fe5297f3407f701e122cc023"), "DATA", 18, true),
-  newErc20Contract("Ripio Credit Network Token", Network.Mainnet, parseAddress("0xf970b8e36e23f7fc3fd752eea86f8be8d83375a6"), "RCN", 18, true),
-  newErc20Contract("WINGS", Network.Mainnet, parseAddress("0x667088b212ce3d06a1b553a7221e1fd19000d9af"), "WINGS", 18, true),
-  newErc20Contract("Edgeless", Network.Mainnet, parseAddress("0x08711d3b02c8758f2fb3ab4e80228418a7f8e39c"), "EDG", 0, true),
-  newErc20Contract("Melon Token", Network.Mainnet, parseAddress("0xbeb9ef514a379b997e0798fdcc901ee474b6d9a1"), "MLN", 18, true),
-  newErc20Contract("Moeda Loyalty Points", Network.Mainnet, parseAddress("0x51db5ad35c671a87207d88fc11d593ac0c8415bd"), "MDA", 18, true),
-  newErc20Contract("PILLAR", Network.Mainnet, parseAddress("0xe3818504c1b32bf1557b16c238b2e01fd3149c17"), "PLR", 18, true),
-  newErc20Contract("QRL", Network.Mainnet, parseAddress("0x697beac28b09e122c4332d163985e8a73121b97f"), "QRL", 8, true),
-  newErc20Contract("Modum Token", Network.Mainnet, parseAddress("0x957c30ab0426e0c93cd8241e2c60392d08c6ac8e"), "MOD", 0, true),
-  newErc20Contract("Token-as-a-Service", Network.Mainnet, parseAddress("0xe7775a6e9bcf904eb39da2b68c5efb4f9360e08c"), "TAAS", 6, true),
-  newErc20Contract("GRID Token", Network.Mainnet, parseAddress("0x12b19d3e2ccc14da04fae33e63652ce469b3f2fd"), "GRID", 12, true),
-  newErc20Contract("SANtiment network token", Network.Mainnet, parseAddress("0x7c5a0ce9267ed19b22f8cae653f198e3e8daf098"), "SAN", 18, true),
-  newErc20Contract("SONM Token", Network.Mainnet, parseAddress("0x983f6d60db79ea8ca4eb9968c6aff8cfa04b3c63"), "SNM", 18, true),
-  newErc20Contract("Request Token", Network.Mainnet, parseAddress("0x8f8221afbb33998d8584a2b05749ba73c37a938a"), "REQ", 18, true),
-  newErc20Contract("Substratum", Network.Mainnet, parseAddress("0x12480e24eb5bec1a9d4369cab6a80cad3c0a377a"), "SUB", 2, true),
-  newErc20Contract("Decentraland MANA", Network.Mainnet, parseAddress("0x0f5d2fb29fb7d3cfee444a200298f468908cc942"), "MANA", 18, true),
-  newErc20Contract("AirSwap Token", Network.Mainnet, parseAddress("0x27054b13b1b798b345b591a4d22e6562d47ea75a"), "AST", 4, true),
-  newErc20Contract("R token", Network.Mainnet, parseAddress("0x48f775efbe4f5ece6e0df2f7b5932df56823b990"), "R", 0, true),
-  newErc20Contract("FirstBlood Token", Network.Mainnet, parseAddress("0xaf30d2a7e90d7dc361c8c4585e9bb7d2f6f15bc7"), "1ST", 18, true),
-  newErc20Contract("Cofoundit", Network.Mainnet, parseAddress("0x12fef5e57bf45873cd9b62e9dbd7bfb99e32d73e"), "CFI", 18, true),
-  newErc20Contract("Enigma", Network.Mainnet, parseAddress("0xf0ee6b27b759c9893ce4f094b49ad28fd15a23e4"), "ENG", 8, true),
-  newErc20Contract("Amber Token", Network.Mainnet, parseAddress("0x4dc3643dbc642b72c158e7f3d2ff232df61cb6ce"), "AMB", 18, true),
-  newErc20Contract("XPlay Token", Network.Mainnet, parseAddress("0x90528aeb3a2b736b780fd1b6c478bb7e1d643170"), "XPA", 18, true),
-  newErc20Contract("Open Trading Network", Network.Mainnet, parseAddress("0x881ef48211982d01e2cb7092c915e647cd40d85c"), "OTN", 18, true),
-  newErc20Contract("Trustcoin", Network.Mainnet, parseAddress("0xcb94be6f13a1182e4a4b6140cb7bf2025d28e41b"), "TRST", 6, true),
-  newErc20Contract("Monolith TKN", Network.Mainnet, parseAddress("0xaaaf91d9b90df800df4f55c205fd6989c977e73a"), "TKN", 8, true),
-  newErc20Contract("RHOC", Network.Mainnet, parseAddress("0x168296bb09e24a88805cb9c33356536b980d3fc5"), "RHOC", 8, true),
-  newErc20Contract("Target Coin", Network.Mainnet, parseAddress("0xac3da587eac229c9896d919abc235ca4fd7f72c1"), "TGT", 1, false),
-  newErc20Contract("Everex", Network.Mainnet, parseAddress("0xf3db5fa2c66b7af3eb0c0b782510816cbe4813b8"), "EVX", 4, true),
-  newErc20Contract("ICOS", Network.Mainnet, parseAddress("0x014b50466590340d41307cc54dcee990c8d58aa8"), "ICOS", 6, true),
-  newErc20Contract("district0x Network Token", Network.Mainnet, parseAddress("0x0abdace70d3790235af448c88547603b945604ea"), "DNT", 18, true),
-  newErc20Contract("Dentacoin", Network.Mainnet, parseAddress("0x08d32b0da63e2c3bcf8019c9c5d849d7a9d791e6"), "٨", 0, false),
-  newErc20Contract("Eidoo Token", Network.Mainnet, parseAddress("0xced4e93198734ddaff8492d525bd258d49eb388e"), "EDO", 18, true),
-  newErc20Contract("BitDice", Network.Mainnet, parseAddress("0x29d75277ac7f0335b2165d0895e8725cbf658d73"), "CSNO", 8, false),
-  newErc20Contract("Cobinhood Token", Network.Mainnet, parseAddress("0xb2f7eb1f2c37645be61d73953035360e768d81e6"), "COB", 18, true),
-  newErc20Contract("Enjin Coin", Network.Mainnet, parseAddress("0xf629cbd94d3791c9250152bd8dfbdf380e2a3b9c"), "ENJ", 18, false),
-  newErc20Contract("AVENTUS", Network.Mainnet, parseAddress("0x0d88ed6e74bbfd96b831231638b66c05571e824f"), "AVT", 18, false),
-  newErc20Contract("Chronobank TIME", Network.Mainnet, parseAddress("0x6531f133e6deebe7f2dce5a0441aa7ef330b4e53"), "TIME", 8, false),
-  newErc20Contract("Cindicator Token", Network.Mainnet, parseAddress("0xd4c435f5b09f855c3317c8524cb1f586e42795fa"), "CND", 18, true),
-  newErc20Contract("Stox", Network.Mainnet, parseAddress("0x006bea43baa3f7a6f765f14f10a1a1b08334ef45"), "STX", 18, true),
-  newErc20Contract("Xaurum", Network.Mainnet, parseAddress("0x4df812f6064def1e5e029f1ca858777cc98d2d81"), "XAUR", 8, true),
-  newErc20Contract("Vibe", Network.Mainnet, parseAddress("0x2c974b2d0ba1716e644c1fc59982a89ddd2ff724"), "VIB", 18, true),
-  newErc20Contract("PRG", Network.Mainnet, parseAddress("0x7728dfef5abd468669eb7f9b48a7f70a501ed29d"), "PRG", 6, false),
-  newErc20Contract("Delphy Token", Network.Mainnet, parseAddress("0x6c2adc2073994fb2ccc5032cc2906fa221e9b391"), "DPY", 18, true),
-  newErc20Contract("CoinDash Token", Network.Mainnet, parseAddress("0x2fe6ab85ebbf7776fee46d191ee4cea322cecf51"), "CDT", 18, true),
-  newErc20Contract("Tierion Network Token", Network.Mainnet, parseAddress("0x08f5a9235b08173b7569f83645d2c7fb55e8ccd8"), "TNT", 8, true),
-  newErc20Contract("DomRaiderToken", Network.Mainnet, parseAddress("0x9af4f26941677c706cfecf6d3379ff01bb85d5ab"), "DRT", 8, true),
-  newErc20Contract("SPANK", Network.Mainnet, parseAddress("0x42d6622dece394b54999fbd73d108123806f6a18"), "SPANK", 18, true),
-  newErc20Contract("Berlin Coin", Network.Mainnet, parseAddress("0x80046305aaab08f6033b56a360c184391165dc2d"), "BRLN", 18, true),
-  newErc20Contract("USD//C", Network.Mainnet, parseAddress("0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"), "USDC", 6, true),
-  newErc20Contract("Livepeer Token", Network.Mainnet, parseAddress("0x58b6a8a3302369daec383334672404ee733ab239"), "LPT", 18, true),
-  newErc20Contract("Simple Token", Network.Mainnet, parseAddress("0x2c4e8f2d746113d0696ce89b35f0d8bf88e0aeca"), "ST", 18, true),
-  newErc20Contract("Wrapped BTC", Network.Mainnet, parseAddress("0x2260fac5e5542a773aa44fbcfedf7c193bc2c599"), "WBTC", 8, true),
-  newErc20Contract("Bloom Token", Network.Mainnet, parseAddress("0x107c4504cd79c5d2696ea0030a8dd4e92601b82e"), "BLT", 18, true),
-  Contract(name: "stickers", network: Network.Mainnet, address: parseAddress("0x0577215622f43a39f4bc9640806dfea9b10d2a36"),
-    methods: [
-      ("packCount", Method(signature: "packCount()")),
-      ("getPackData", Method(signature: "getPackData(uint256)"))
-    ].toTable
-  ),
-  Contract(name: "sticker-market", network: Network.Mainnet, address: parseAddress("0x12824271339304d3a9f7e096e62a2a7e73b4a7e7"),
-    methods: [
-      ("buyToken", Method(signature: "buyToken(uint256,address,uint256)"))
-    ].toTable
-  ),
-  newErc721Contract("sticker-pack", Network.Mainnet, parseAddress("0x110101156e8F0743948B2A61aFcf3994A8Fb172e"), "PACK", false, @[("tokenPackId", Method(signature: "tokenPackId(uint256)"))]),
-  # Strikers seems dead. Their website doesn't work anymore
-  newErc721Contract("strikers", Network.Mainnet, parseAddress("0xdcaad9fd9a74144d226dbf94ce6162ca9f09ed7e"), "STRK", true),
-  newErc721Contract("ethermon", Network.Mainnet, parseAddress("0xb2c0782ae4a299f7358758b2d15da9bf29e1dd99"), "EMONA", true),
-  newErc721Contract("kudos", Network.Mainnet, parseAddress("0x2aea4add166ebf38b63d09a75de1a7b94aa24163"), "KDO", true),
-  newErc721Contract("crypto-kitties", Network.Mainnet, parseAddress("0x06012c8cf97bead5deae237070f9587f8e7a266d"), "CK", true),
-  Contract(name: "ens-usernames", network: Network.Mainnet, address: parseAddress("0xDB5ac1a559b02E12F29fC0eC0e37Be8E046DEF49"),
-      methods: [
-        ("register", Method(signature: "register(bytes32,address,bytes32,bytes32)")),
-        ("getPrice", Method(signature: "getPrice()"))
-      ].toTable
-  ),
-  Contract(name: "ens-resolver", network: Network.Mainnet, address: parseAddress("0x4976fb03C32e5B8cfe2b6cCB31c09Ba78EBaBa41"),
-      methods: [
-        ("setPubkey", Method(signature: "setPubkey(bytes32,bytes32,bytes32)"))
-      ].toTable
-  ),
+var 
+  contracts {.threadvar.}: seq[Contract]
+  contractsInited {.threadvar.}: bool
+proc allContracts(): seq[Contract] =
+  if contractsInited:
+    result = contracts
+  else:
+    contracts = @[
+      # Mainnet contracts
+      newErc20Contract("Status Network Token", Network.Mainnet, parseAddress("0x744d70fdbe2ba4cf95131626614a1763df805b9e"), "SNT", 18, true),
+      newErc20Contract("Dai Stablecoin", Network.Mainnet, parseAddress("0x6b175474e89094c44da98b954eedeac495271d0f"), "DAI", 18, true),
+      newErc20Contract("Sai Stablecoin v1.0", Network.Mainnet, parseAddress("0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"), "SAI", 18, true),
+      newErc20Contract("MKR", Network.Mainnet, parseAddress("0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2"), "MKR", 18, true),
+      newErc20Contract("EOS", Network.Mainnet, parseAddress("0x86fa049857e0209aa7d9e616f7eb3b3b78ecfdb0"), "EOS", 18, true),
+      newErc20Contract("OMGToken", Network.Mainnet, parseAddress("0xd26114cd6ee289accf82350c8d8487fedb8a0c07"), "OMG", 18, true),
+      newErc20Contract("Populous Platform", Network.Mainnet, parseAddress("0xd4fa1460f537bb9085d22c7bccb5dd450ef28e3a"), "PPT", 8, true),
+      newErc20Contract("Reputation", Network.Mainnet, parseAddress("0x1985365e9f78359a9b6ad760e32412f4a445e862"), "REP", 18, true),
+      newErc20Contract("PowerLedger", Network.Mainnet, parseAddress("0x595832f8fc6bf59c85c527fec3740a1b7a361269"), "POWR", 6, true),
+      newErc20Contract("TenX Pay Token", Network.Mainnet, parseAddress("0xb97048628db6b661d4c2aa833e95dbe1a905b280"), "PAY", 18, true),
+      newErc20Contract("Veros", Network.Mainnet, parseAddress("0x92e78dae1315067a8819efd6dca432de9dcde2e9"), "VRS", 6, false),
+      newErc20Contract("Golem Network Token", Network.Mainnet, parseAddress("0xa74476443119a942de498590fe1f2454d7d4ac0d"), "GNT", 18, true),
+      newErc20Contract("Salt", Network.Mainnet, parseAddress("0x4156d3342d5c385a87d264f90653733592000581"), "SALT", 8, true),
+      newErc20Contract("BNB", Network.Mainnet, parseAddress("0xb8c77482e45f1f44de1745f52c74426c631bdd52"), "BNB", 18, true),
+      newErc20Contract("Basic Attention Token", Network.Mainnet, parseAddress("0x0d8775f648430679a709e98d2b0cb6250d2887ef"), "BAT", 18, true),
+      newErc20Contract("Kyber Network Crystal", Network.Mainnet, parseAddress("0xdd974d5c2e2928dea5f71b9825b8b646686bd200"), "KNC", 18, true),
+      newErc20Contract("BTU Protocol", Network.Mainnet, parseAddress("0xb683D83a532e2Cb7DFa5275eED3698436371cc9f"), "BTU", 18, true),
+      newErc20Contract("Digix DAO", Network.Mainnet, parseAddress("0xe0b7927c4af23765cb51314a0e0521a9645f0e2a"), "DGD", 9, true),
+      newErc20Contract("Aeternity", Network.Mainnet, parseAddress("0x5ca9a71b1d01849c0a95490cc00559717fcf0d1d"), "AE", 18, true),
+      newErc20Contract("Tronix", Network.Mainnet, parseAddress("0xf230b790e05390fc8295f4d3f60332c93bed42e2"), "TRX", 6, true),
+      newErc20Contract("Ethos", Network.Mainnet, parseAddress("0x5af2be193a6abca9c8817001f45744777db30756"), "ETHOS", 8, true),
+      newErc20Contract("Raiden Token", Network.Mainnet, parseAddress("0x255aa6df07540cb5d3d297f0d0d4d84cb52bc8e6"), "RDN", 18, true),
+      newErc20Contract("SingularDTV", Network.Mainnet, parseAddress("0xaec2e87e0a235266d9c5adc9deb4b2e29b54d009"), "SNGLS", 0, true),
+      newErc20Contract("Gnosis Token", Network.Mainnet, parseAddress("0x6810e776880c02933d47db1b9fc05908e5386b96"), "GNO", 18, true),
+      newErc20Contract("StorjToken", Network.Mainnet, parseAddress("0xb64ef51c888972c908cfacf59b47c1afbc0ab8ac"), "STORJ", 8, true),
+      newErc20Contract("AdEx", Network.Mainnet, parseAddress("0x4470bb87d77b963a013db939be332f927f2b992e"), "ADX", 4, false),
+      newErc20Contract("FunFair", Network.Mainnet, parseAddress("0x419d0d8bdd9af5e606ae2232ed285aff190e711b"), "FUN", 8, true),
+      newErc20Contract("Civic", Network.Mainnet, parseAddress("0x41e5560054824ea6b0732e656e3ad64e20e94e45"), "CVC", 8, true),
+      newErc20Contract("ICONOMI", Network.Mainnet, parseAddress("0x888666ca69e0f178ded6d75b5726cee99a87d698"), "ICN", 18, true),
+      newErc20Contract("Walton Token", Network.Mainnet, parseAddress("0xb7cb1c96db6b22b0d3d9536e0108d062bd488f74"), "WTC", 18, true),
+      newErc20Contract("Bytom", Network.Mainnet, parseAddress("0xcb97e65f07da24d46bcdd078ebebd7c6e6e3d750"), "BTM", 8, true),
+      newErc20Contract("0x Protocol Token", Network.Mainnet, parseAddress("0xe41d2489571d322189246dafa5ebde1f4699f498"), "ZRX", 18, true),
+      newErc20Contract("Bancor Network Token", Network.Mainnet, parseAddress("0x1f573d6fb3f13d689ff844b4ce37794d79a7ff1c"), "BNT", 18, true),
+      newErc20Contract("Metal", Network.Mainnet, parseAddress("0xf433089366899d83a9f26a773d59ec7ecf30355e"), "MTL", 8, false),
+      newErc20Contract("PayPie", Network.Mainnet, parseAddress("0xc42209accc14029c1012fb5680d95fbd6036e2a0"), "PPP", 18, true),
+      newErc20Contract("ChainLink Token", Network.Mainnet, parseAddress("0x514910771af9ca656af840dff83e8264ecf986ca"), "LINK", 18, true),
+      newErc20Contract("Kin", Network.Mainnet, parseAddress("0x818fc6c2ec5986bc6e2cbf00939d90556ab12ce5"), "KIN", 18, true),
+      newErc20Contract("Aragon Network Token", Network.Mainnet, parseAddress("0x960b236a07cf122663c4303350609a66a7b288c0"), "ANT", 18, true),
+      newErc20Contract("MobileGo Token", Network.Mainnet, parseAddress("0x40395044ac3c0c57051906da938b54bd6557f212"), "MGO", 8, true),
+      newErc20Contract("Monaco", Network.Mainnet, parseAddress("0xb63b606ac810a52cca15e44bb630fd42d8d1d83d"), "MCO", 8, true),
+      newErc20Contract("loopring", Network.Mainnet, parseAddress("0xef68e7c694f40c8202821edf525de3782458639f"), "LRC", 18, true),
+      newErc20Contract("Zeus Shield Coin", Network.Mainnet, parseAddress("0x7a41e0517a5eca4fdbc7fbeba4d4c47b9ff6dc63"), "ZSC", 18, true),
+      newErc20Contract("Streamr DATAcoin", Network.Mainnet, parseAddress("0x0cf0ee63788a0849fe5297f3407f701e122cc023"), "DATA", 18, true),
+      newErc20Contract("Ripio Credit Network Token", Network.Mainnet, parseAddress("0xf970b8e36e23f7fc3fd752eea86f8be8d83375a6"), "RCN", 18, true),
+      newErc20Contract("WINGS", Network.Mainnet, parseAddress("0x667088b212ce3d06a1b553a7221e1fd19000d9af"), "WINGS", 18, true),
+      newErc20Contract("Edgeless", Network.Mainnet, parseAddress("0x08711d3b02c8758f2fb3ab4e80228418a7f8e39c"), "EDG", 0, true),
+      newErc20Contract("Melon Token", Network.Mainnet, parseAddress("0xbeb9ef514a379b997e0798fdcc901ee474b6d9a1"), "MLN", 18, true),
+      newErc20Contract("Moeda Loyalty Points", Network.Mainnet, parseAddress("0x51db5ad35c671a87207d88fc11d593ac0c8415bd"), "MDA", 18, true),
+      newErc20Contract("PILLAR", Network.Mainnet, parseAddress("0xe3818504c1b32bf1557b16c238b2e01fd3149c17"), "PLR", 18, true),
+      newErc20Contract("QRL", Network.Mainnet, parseAddress("0x697beac28b09e122c4332d163985e8a73121b97f"), "QRL", 8, true),
+      newErc20Contract("Modum Token", Network.Mainnet, parseAddress("0x957c30ab0426e0c93cd8241e2c60392d08c6ac8e"), "MOD", 0, true),
+      newErc20Contract("Token-as-a-Service", Network.Mainnet, parseAddress("0xe7775a6e9bcf904eb39da2b68c5efb4f9360e08c"), "TAAS", 6, true),
+      newErc20Contract("GRID Token", Network.Mainnet, parseAddress("0x12b19d3e2ccc14da04fae33e63652ce469b3f2fd"), "GRID", 12, true),
+      newErc20Contract("SANtiment network token", Network.Mainnet, parseAddress("0x7c5a0ce9267ed19b22f8cae653f198e3e8daf098"), "SAN", 18, true),
+      newErc20Contract("SONM Token", Network.Mainnet, parseAddress("0x983f6d60db79ea8ca4eb9968c6aff8cfa04b3c63"), "SNM", 18, true),
+      newErc20Contract("Request Token", Network.Mainnet, parseAddress("0x8f8221afbb33998d8584a2b05749ba73c37a938a"), "REQ", 18, true),
+      newErc20Contract("Substratum", Network.Mainnet, parseAddress("0x12480e24eb5bec1a9d4369cab6a80cad3c0a377a"), "SUB", 2, true),
+      newErc20Contract("Decentraland MANA", Network.Mainnet, parseAddress("0x0f5d2fb29fb7d3cfee444a200298f468908cc942"), "MANA", 18, true),
+      newErc20Contract("AirSwap Token", Network.Mainnet, parseAddress("0x27054b13b1b798b345b591a4d22e6562d47ea75a"), "AST", 4, true),
+      newErc20Contract("R token", Network.Mainnet, parseAddress("0x48f775efbe4f5ece6e0df2f7b5932df56823b990"), "R", 0, true),
+      newErc20Contract("FirstBlood Token", Network.Mainnet, parseAddress("0xaf30d2a7e90d7dc361c8c4585e9bb7d2f6f15bc7"), "1ST", 18, true),
+      newErc20Contract("Cofoundit", Network.Mainnet, parseAddress("0x12fef5e57bf45873cd9b62e9dbd7bfb99e32d73e"), "CFI", 18, true),
+      newErc20Contract("Enigma", Network.Mainnet, parseAddress("0xf0ee6b27b759c9893ce4f094b49ad28fd15a23e4"), "ENG", 8, true),
+      newErc20Contract("Amber Token", Network.Mainnet, parseAddress("0x4dc3643dbc642b72c158e7f3d2ff232df61cb6ce"), "AMB", 18, true),
+      newErc20Contract("XPlay Token", Network.Mainnet, parseAddress("0x90528aeb3a2b736b780fd1b6c478bb7e1d643170"), "XPA", 18, true),
+      newErc20Contract("Open Trading Network", Network.Mainnet, parseAddress("0x881ef48211982d01e2cb7092c915e647cd40d85c"), "OTN", 18, true),
+      newErc20Contract("Trustcoin", Network.Mainnet, parseAddress("0xcb94be6f13a1182e4a4b6140cb7bf2025d28e41b"), "TRST", 6, true),
+      newErc20Contract("Monolith TKN", Network.Mainnet, parseAddress("0xaaaf91d9b90df800df4f55c205fd6989c977e73a"), "TKN", 8, true),
+      newErc20Contract("RHOC", Network.Mainnet, parseAddress("0x168296bb09e24a88805cb9c33356536b980d3fc5"), "RHOC", 8, true),
+      newErc20Contract("Target Coin", Network.Mainnet, parseAddress("0xac3da587eac229c9896d919abc235ca4fd7f72c1"), "TGT", 1, false),
+      newErc20Contract("Everex", Network.Mainnet, parseAddress("0xf3db5fa2c66b7af3eb0c0b782510816cbe4813b8"), "EVX", 4, true),
+      newErc20Contract("ICOS", Network.Mainnet, parseAddress("0x014b50466590340d41307cc54dcee990c8d58aa8"), "ICOS", 6, true),
+      newErc20Contract("district0x Network Token", Network.Mainnet, parseAddress("0x0abdace70d3790235af448c88547603b945604ea"), "DNT", 18, true),
+      newErc20Contract("Dentacoin", Network.Mainnet, parseAddress("0x08d32b0da63e2c3bcf8019c9c5d849d7a9d791e6"), "٨", 0, false),
+      newErc20Contract("Eidoo Token", Network.Mainnet, parseAddress("0xced4e93198734ddaff8492d525bd258d49eb388e"), "EDO", 18, true),
+      newErc20Contract("BitDice", Network.Mainnet, parseAddress("0x29d75277ac7f0335b2165d0895e8725cbf658d73"), "CSNO", 8, false),
+      newErc20Contract("Cobinhood Token", Network.Mainnet, parseAddress("0xb2f7eb1f2c37645be61d73953035360e768d81e6"), "COB", 18, true),
+      newErc20Contract("Enjin Coin", Network.Mainnet, parseAddress("0xf629cbd94d3791c9250152bd8dfbdf380e2a3b9c"), "ENJ", 18, false),
+      newErc20Contract("AVENTUS", Network.Mainnet, parseAddress("0x0d88ed6e74bbfd96b831231638b66c05571e824f"), "AVT", 18, false),
+      newErc20Contract("Chronobank TIME", Network.Mainnet, parseAddress("0x6531f133e6deebe7f2dce5a0441aa7ef330b4e53"), "TIME", 8, false),
+      newErc20Contract("Cindicator Token", Network.Mainnet, parseAddress("0xd4c435f5b09f855c3317c8524cb1f586e42795fa"), "CND", 18, true),
+      newErc20Contract("Stox", Network.Mainnet, parseAddress("0x006bea43baa3f7a6f765f14f10a1a1b08334ef45"), "STX", 18, true),
+      newErc20Contract("Xaurum", Network.Mainnet, parseAddress("0x4df812f6064def1e5e029f1ca858777cc98d2d81"), "XAUR", 8, true),
+      newErc20Contract("Vibe", Network.Mainnet, parseAddress("0x2c974b2d0ba1716e644c1fc59982a89ddd2ff724"), "VIB", 18, true),
+      newErc20Contract("PRG", Network.Mainnet, parseAddress("0x7728dfef5abd468669eb7f9b48a7f70a501ed29d"), "PRG", 6, false),
+      newErc20Contract("Delphy Token", Network.Mainnet, parseAddress("0x6c2adc2073994fb2ccc5032cc2906fa221e9b391"), "DPY", 18, true),
+      newErc20Contract("CoinDash Token", Network.Mainnet, parseAddress("0x2fe6ab85ebbf7776fee46d191ee4cea322cecf51"), "CDT", 18, true),
+      newErc20Contract("Tierion Network Token", Network.Mainnet, parseAddress("0x08f5a9235b08173b7569f83645d2c7fb55e8ccd8"), "TNT", 8, true),
+      newErc20Contract("DomRaiderToken", Network.Mainnet, parseAddress("0x9af4f26941677c706cfecf6d3379ff01bb85d5ab"), "DRT", 8, true),
+      newErc20Contract("SPANK", Network.Mainnet, parseAddress("0x42d6622dece394b54999fbd73d108123806f6a18"), "SPANK", 18, true),
+      newErc20Contract("Berlin Coin", Network.Mainnet, parseAddress("0x80046305aaab08f6033b56a360c184391165dc2d"), "BRLN", 18, true),
+      newErc20Contract("USD//C", Network.Mainnet, parseAddress("0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"), "USDC", 6, true),
+      newErc20Contract("Livepeer Token", Network.Mainnet, parseAddress("0x58b6a8a3302369daec383334672404ee733ab239"), "LPT", 18, true),
+      newErc20Contract("Simple Token", Network.Mainnet, parseAddress("0x2c4e8f2d746113d0696ce89b35f0d8bf88e0aeca"), "ST", 18, true),
+      newErc20Contract("Wrapped BTC", Network.Mainnet, parseAddress("0x2260fac5e5542a773aa44fbcfedf7c193bc2c599"), "WBTC", 8, true),
+      newErc20Contract("Bloom Token", Network.Mainnet, parseAddress("0x107c4504cd79c5d2696ea0030a8dd4e92601b82e"), "BLT", 18, true),
+      Contract(name: "stickers", network: Network.Mainnet, address: parseAddress("0x0577215622f43a39f4bc9640806dfea9b10d2a36"),
+        methods: [
+          ("packCount", Method(signature: "packCount()")),
+          ("getPackData", Method(signature: "getPackData(uint256)"))
+        ].toTable
+      ),
+      Contract(name: "sticker-market", network: Network.Mainnet, address: parseAddress("0x12824271339304d3a9f7e096e62a2a7e73b4a7e7"),
+        methods: [
+          ("buyToken", Method(signature: "buyToken(uint256,address,uint256)"))
+        ].toTable
+      ),
+      newErc721Contract("sticker-pack", Network.Mainnet, parseAddress("0x110101156e8F0743948B2A61aFcf3994A8Fb172e"), "PACK", false, @[("tokenPackId", Method(signature: "tokenPackId(uint256)"))]),
+      # Strikers seems dead. Their website doesn't work anymore
+      newErc721Contract("strikers", Network.Mainnet, parseAddress("0xdcaad9fd9a74144d226dbf94ce6162ca9f09ed7e"), "STRK", true),
+      newErc721Contract("ethermon", Network.Mainnet, parseAddress("0xb2c0782ae4a299f7358758b2d15da9bf29e1dd99"), "EMONA", true),
+      newErc721Contract("kudos", Network.Mainnet, parseAddress("0x2aea4add166ebf38b63d09a75de1a7b94aa24163"), "KDO", true),
+      newErc721Contract("crypto-kitties", Network.Mainnet, parseAddress("0x06012c8cf97bead5deae237070f9587f8e7a266d"), "CK", true),
+      Contract(name: "ens-usernames", network: Network.Mainnet, address: parseAddress("0xDB5ac1a559b02E12F29fC0eC0e37Be8E046DEF49"),
+          methods: [
+            ("register", Method(signature: "register(bytes32,address,bytes32,bytes32)")),
+            ("getPrice", Method(signature: "getPrice()"))
+          ].toTable
+      ),
+      Contract(name: "ens-resolver", network: Network.Mainnet, address: parseAddress("0x4976fb03C32e5B8cfe2b6cCB31c09Ba78EBaBa41"),
+          methods: [
+            ("setPubkey", Method(signature: "setPubkey(bytes32,bytes32,bytes32)"))
+          ].toTable
+      ),
 
-  # Testnet (Ropsten) contracts
-  newErc20Contract("Status Test Token", Network.Testnet, parseAddress("0xc55cf4b03948d7ebc8b9e8bad92643703811d162"), "STT", 18, true),
-  newErc20Contract("Handy Test Token", Network.Testnet, parseAddress("0xdee43a267e8726efd60c2e7d5b81552dcd4fa35c"), "HND", 0, false),
-  newErc20Contract("Lucky Test Token", Network.Testnet, parseAddress("0x703d7dc0bc8e314d65436adf985dda51e09ad43b"), "LXS", 2, false),
-  newErc20Contract("Adi Test Token", Network.Testnet, parseAddress("0xe639e24346d646e927f323558e6e0031bfc93581"), "ADI", 7, false),
-  newErc20Contract("Wagner Test Token", Network.Testnet, parseAddress("0x2e7cd05f437eb256f363417fd8f920e2efa77540"), "WGN", 10, false),
-  newErc20Contract("Modest Test Token", Network.Testnet, parseAddress("0x57cc9b83730e6d22b224e9dc3e370967b44a2de0"), "MDS", 18, false),
-  Contract(name: "tribute-to-talk", network: Network.Testnet, address: parseAddress("0xC61aa0287247a0398589a66fCD6146EC0F295432")),
-  Contract(name: "stickers", network: Network.Testnet, address: parseAddress("0x8cc272396be7583c65bee82cd7b743c69a87287d"),
-    methods: [
-      ("packCount", Method(signature: "packCount()")),
-      ("getPackData", Method(signature: "getPackData(uint256)"))
-    ].toTable
-  ),
-  Contract(name: "sticker-market", network: Network.Testnet, address: parseAddress("0x6CC7274aF9cE9572d22DFD8545Fb8c9C9Bcb48AD"),
-    methods: [
-      ("buyToken", Method(signature: "buyToken(uint256,address,uint256)"))
-    ].toTable
-  ),
-  newErc721Contract("sticker-pack", Network.Testnet, parseAddress("0xf852198d0385c4b871e0b91804ecd47c6ba97351"), "PACK", false, @[("tokenPackId", Method(signature: "tokenPackId(uint256)"))]),
-  newErc721Contract("kudos", Network.Testnet, parseAddress("0xcd520707fc68d153283d518b29ada466f9091ea8"), "KDO", true),
-  Contract(name: "ens-usernames", network: Network.Testnet, address: parseAddress("0x11d9F481effd20D76cEE832559bd9Aca25405841"),
-      methods: [
-        ("register", Method(signature: "register(bytes32,address,bytes32,bytes32)")),
-        ("getPrice", Method(signature: "getPrice()"))
-      ].toTable
-  ),
-  Contract(name: "ens-resolver", network: Network.Testnet, address: parseAddress("0x42D63ae25990889E35F215bC95884039Ba354115"),
-      methods: [
-        ("setPubkey", Method(signature: "setPubkey(bytes32,bytes32,bytes32)"))
-      ].toTable
-  ),
+      # Testnet (Ropsten) contracts
+      newErc20Contract("Status Test Token", Network.Testnet, parseAddress("0xc55cf4b03948d7ebc8b9e8bad92643703811d162"), "STT", 18, true),
+      newErc20Contract("Handy Test Token", Network.Testnet, parseAddress("0xdee43a267e8726efd60c2e7d5b81552dcd4fa35c"), "HND", 0, false),
+      newErc20Contract("Lucky Test Token", Network.Testnet, parseAddress("0x703d7dc0bc8e314d65436adf985dda51e09ad43b"), "LXS", 2, false),
+      newErc20Contract("Adi Test Token", Network.Testnet, parseAddress("0xe639e24346d646e927f323558e6e0031bfc93581"), "ADI", 7, false),
+      newErc20Contract("Wagner Test Token", Network.Testnet, parseAddress("0x2e7cd05f437eb256f363417fd8f920e2efa77540"), "WGN", 10, false),
+      newErc20Contract("Modest Test Token", Network.Testnet, parseAddress("0x57cc9b83730e6d22b224e9dc3e370967b44a2de0"), "MDS", 18, false),
+      Contract(name: "tribute-to-talk", network: Network.Testnet, address: parseAddress("0xC61aa0287247a0398589a66fCD6146EC0F295432")),
+      Contract(name: "stickers", network: Network.Testnet, address: parseAddress("0x8cc272396be7583c65bee82cd7b743c69a87287d"),
+        methods: [
+          ("packCount", Method(signature: "packCount()")),
+          ("getPackData", Method(signature: "getPackData(uint256)"))
+        ].toTable
+      ),
+      Contract(name: "sticker-market", network: Network.Testnet, address: parseAddress("0x6CC7274aF9cE9572d22DFD8545Fb8c9C9Bcb48AD"),
+        methods: [
+          ("buyToken", Method(signature: "buyToken(uint256,address,uint256)"))
+        ].toTable
+      ),
+      newErc721Contract("sticker-pack", Network.Testnet, parseAddress("0xf852198d0385c4b871e0b91804ecd47c6ba97351"), "PACK", false, @[("tokenPackId", Method(signature: "tokenPackId(uint256)"))]),
+      newErc721Contract("kudos", Network.Testnet, parseAddress("0xcd520707fc68d153283d518b29ada466f9091ea8"), "KDO", true),
+      Contract(name: "ens-usernames", network: Network.Testnet, address: parseAddress("0x11d9F481effd20D76cEE832559bd9Aca25405841"),
+          methods: [
+            ("register", Method(signature: "register(bytes32,address,bytes32,bytes32)")),
+            ("getPrice", Method(signature: "getPrice()"))
+          ].toTable
+      ),
+      Contract(name: "ens-resolver", network: Network.Testnet, address: parseAddress("0x42D63ae25990889E35F215bC95884039Ba354115"),
+          methods: [
+            ("setPubkey", Method(signature: "setPubkey(bytes32,bytes32,bytes32)"))
+          ].toTable
+      ),
 
-  # Rinkeby contracts
-  newErc20Contract("Moksha Coin", Network.Rinkeby, parseAddress("0x6ba7dc8dd10880ab83041e60c4ede52bb607864b"), "MOKSHA", 18, false),
-  newErc20Contract("WIBB", Network.Rinkeby, parseAddress("0x7d4ccf6af2f0fdad48ee7958bcc28bdef7b732c7"), "WIBB", 18, false),
-  newErc20Contract("Status Test Token", Network.Rinkeby, parseAddress("0x43d5adc3b49130a575ae6e4b00dfa4bc55c71621"), "STT", 18, false),
+      # Rinkeby contracts
+      newErc20Contract("Moksha Coin", Network.Rinkeby, parseAddress("0x6ba7dc8dd10880ab83041e60c4ede52bb607864b"), "MOKSHA", 18, false),
+      newErc20Contract("WIBB", Network.Rinkeby, parseAddress("0x7d4ccf6af2f0fdad48ee7958bcc28bdef7b732c7"), "WIBB", 18, false),
+      newErc20Contract("Status Test Token", Network.Rinkeby, parseAddress("0x43d5adc3b49130a575ae6e4b00dfa4bc55c71621"), "STT", 18, false),
 
-  # xDai contracts
-  newErc20Contract("buffiDai", Network.XDai, parseAddress("0x3e50bf6703fc132a94e4baff068db2055655f11b"), "BUFF", 18, false),
+      # xDai contracts
+      newErc20Contract("buffiDai", Network.XDai, parseAddress("0x3e50bf6703fc132a94e4baff068db2055655f11b"), "BUFF", 18, false),
 
-  newErc20Contract("Uniswap", Network.Mainnet, parseAddress("0x1f9840a85d5af5bf1d1762f925bdaddc4201f984"), "UNI", 18, true),
-  newErc20Contract("Compound", Network.Mainnet, parseAddress("0xc00e94cb662c3520282e6f5717214004a7f26888"), "COMP", 18, true),
-  newErc20Contract("Balancer", Network.Mainnet, parseAddress("0xba100000625a3754423978a60c9317c58a424e3d"), "BAL", 18, true),
-  newErc20Contract("Akropolis", Network.Mainnet, parseAddress("0x8ab7404063ec4dbcfd4598215992dc3f8ec853d7"), "AKRO", 18, true),
-  newErc20Contract("Orchid", Network.Mainnet, parseAddress("0x4575f41308EC1483f3d399aa9a2826d74Da13Deb"), "OXT", 18, false),
-]
+      newErc20Contract("Uniswap", Network.Mainnet, parseAddress("0x1f9840a85d5af5bf1d1762f925bdaddc4201f984"), "UNI", 18, true),
+      newErc20Contract("Compound", Network.Mainnet, parseAddress("0xc00e94cb662c3520282e6f5717214004a7f26888"), "COMP", 18, true),
+      newErc20Contract("Balancer", Network.Mainnet, parseAddress("0xba100000625a3754423978a60c9317c58a424e3d"), "BAL", 18, true),
+      newErc20Contract("Akropolis", Network.Mainnet, parseAddress("0x8ab7404063ec4dbcfd4598215992dc3f8ec853d7"), "AKRO", 18, true),
+      newErc20Contract("Orchid", Network.Mainnet, parseAddress("0x4575f41308EC1483f3d399aa9a2826d74Da13Deb"), "OXT", 18, false),
+    ]
+    contractsInited = true
+    result = contracts
 
 proc getContract(network: Network, name: string): Contract =
-  {.gcsafe.}:
-    withLock contractsLock:
-      let found = ALL_CONTRACTS.filter(contract => contract.name == name and contract.network == network)
-      result = if found.len > 0: found[0] else: nil
+  let found = allContracts().filter(contract => contract.name == name and contract.network == network)
+  result = if found.len > 0: found[0] else: nil
 
 proc getContract*(name: string): Contract =
   let network = settings.getCurrentNetwork()
@@ -275,27 +279,19 @@ proc getErc20ContractByAddress*(contracts: seq[Erc20Contract], address: Address)
 
 proc getErc20Contract*(symbol: string): Erc20Contract =
   let network = settings.getCurrentNetwork()
-  {.gcsafe.}:
-    withLock contractsLock:
-      result = ALL_CONTRACTS.filter(contract => contract.network == network and contract of Erc20Contract).map(contract => Erc20Contract(contract)).getErc20ContractBySymbol(symbol)
+  result = allContracts().filter(contract => contract.network == network and contract of Erc20Contract).map(contract => Erc20Contract(contract)).getErc20ContractBySymbol(symbol)
 
 proc getErc20Contract*(address: Address): Erc20Contract =
   let network = settings.getCurrentNetwork()
-  {.gcsafe.}:
-    withLock contractsLock:
-      result = ALL_CONTRACTS.filter(contract => contract.network == network and contract of Erc20Contract).map(contract => Erc20Contract(contract)).getErc20ContractByAddress(address)
+  result = allContracts().filter(contract => contract.network == network and contract of Erc20Contract).map(contract => Erc20Contract(contract)).getErc20ContractByAddress(address)
 
 proc getErc20Contracts*(): seq[Erc20Contract] =
   let network = settings.getCurrentNetwork()
-  {.gcsafe.}:
-    withLock contractsLock:
-      result = ALL_CONTRACTS.filter(contract => contract of Erc20Contract and contract.network == network).map(contract => Erc20Contract(contract))
+  result = allContracts().filter(contract => contract of Erc20Contract and contract.network == network).map(contract => Erc20Contract(contract))
 
 proc getErc721Contract(network: Network, name: string): Erc721Contract =
-  {.gcsafe.}:
-    withLock contractsLock:
-      let found = ALL_CONTRACTS.filter(contract => contract of Erc721Contract and Erc721Contract(contract).name.toLower == name.toLower and contract.network == network)
-      result = if found.len > 0: Erc721Contract(found[0]) else: nil
+  let found = allContracts().filter(contract => contract of Erc721Contract and Erc721Contract(contract).name.toLower == name.toLower and contract.network == network)
+  result = if found.len > 0: Erc721Contract(found[0]) else: nil
 
 proc getErc721Contract*(name: string): Erc721Contract =
   let network = settings.getCurrentNetwork()
@@ -303,9 +299,7 @@ proc getErc721Contract*(name: string): Erc721Contract =
 
 proc getErc721Contracts*(): seq[Erc721Contract] =
   let network = settings.getCurrentNetwork()
-  {.gcsafe.}:
-    withLock contractsLock:
-      result = ALL_CONTRACTS.filter(contract => contract of Erc721Contract and contract.network == network).map(contract => Erc721Contract(contract))
+  result = allContracts().filter(contract => contract of Erc721Contract and contract.network == network).map(contract => Erc721Contract(contract))
 
 proc getSntContract*(): Erc20Contract =
   if settings.getCurrentNetwork() == Network.Mainnet:
diff --git a/src/status/libstatus/settings.nim b/src/status/libstatus/settings.nim
index 7b29953f21..abf3c34905 100644
--- a/src/status/libstatus/settings.nim
+++ b/src/status/libstatus/settings.nim
@@ -1,37 +1,46 @@
-import core, ./types, ../signals/types as statusgo_types, ./accounts/constants, ./utils
-import json, tables, sugar, sequtils, strutils
-import json_serialization
-import locks
-import uuids
+import
+  json, tables, sugar, sequtils, strutils, atomics
 
-var settingsLock {.global.}: Lock
-initLock(settingsLock)
+import
+  json_serialization, chronicles, uuids
 
-var settings = %*{}
-var dirty = true
+import
+  ./core, ./types, ../signals/types as statusgo_types, ./accounts/constants,
+  ./utils
+
+var
+  settings {.threadvar.}: JsonNode
+  settingsInited {.threadvar.}: bool
+  dirty: Atomic[bool]
+
+dirty.store(true)
+settings = %* {}
 
 proc saveSetting*(key: Setting, value: string | JsonNode): StatusGoError =
-  withLock settingsLock:
-    try:
-      let response = callPrivateRPC("settings_saveSetting", %* [key, value])
-      result = Json.decode($response, StatusGoError)
-    except:
-      dirty = true
+  try:
+    let response = callPrivateRPC("settings_saveSetting", %* [key, value])
+    let responseResult = $(response.parseJSON(){"result"})
+    if responseResult == "null":
+      result.error = ""
+    else: result = Json.decode(response, StatusGoError)
+  except Exception as e:
+    error "Error saving setting", key=key, value=value, msg=e.msg
+    dirty.store(true)
 
 proc getWeb3ClientVersion*(): string =
   parseJson(callPrivateRPC("web3_clientVersion"))["result"].getStr
 
 proc getSettings*(useCached: bool = true, keepSensitiveData: bool = false): JsonNode =
-  withLock settingsLock:
-    {.gcsafe.}:
-      if useCached and not dirty and not keepSensitiveData:
-        result = settings
-      else: 
-        result = callPrivateRPC("settings_getSettings").parseJSON()["result"]
-        if not keepSensitiveData:
-          dirty = false
-          delete(result, "mnemonic")
-          settings = result
+  let cacheIsDirty = (not settingsInited) or dirty.load
+  if useCached and (not cacheIsDirty) and (not keepSensitiveData):
+    result = settings
+  else: 
+    result = callPrivateRPC("settings_getSettings").parseJSON()["result"]
+    if not keepSensitiveData:
+      dirty.store(false)
+      delete(result, "mnemonic")
+      settings = result
+      settingsInited = true
 
 proc getSetting*[T](name: Setting, defaultValue: T, useCached: bool = true): T =
   let settings: JsonNode = getSettings(useCached, $name == "mnemonic")
diff --git a/src/status/libstatus/stickers.nim b/src/status/libstatus/stickers.nim
index 2aba83304a..52bf22abe1 100644
--- a/src/status/libstatus/stickers.nim
+++ b/src/status/libstatus/stickers.nim
@@ -47,7 +47,8 @@ proc decodeContentHash*(value: string): string =
     # 20 = multihash length = 32
     # ...rest = multihash digest
     let multiHash = MultiHash.init(nimcrypto.fromHex(multiHashStr)).get()
-    result = $Cid.init(CIDv0, MultiCodec.codec(codec), multiHash)
+    let resultTyped = Cid.init(CIDv0, MultiCodec.codec(codec), multiHash).get()
+    result = $resultTyped
     trace "Decoded sticker hash", cid=result
   except Exception as e:
     error "Error decoding sticker", hash=value, exception=e.msg
@@ -59,14 +60,14 @@ proc decodeContentHash*(value: string): string =
 proc getBalance*(address: Address): int =
   let contract = contracts.getContract("sticker-pack")
   if contract == nil: return 0
-    
+
   let
     balanceOf = BalanceOf(address: address)
     payload = %* [{
       "to": $contract.address,
       "data": contract.methods["balanceOf"].encodeAbi(balanceOf)
     }, "latest"]
-  
+
   let responseStr = status.callPrivateRPC("eth_call", payload)
   let response = Json.decode(responseStr, RpcResponse)
   if not response.error.isNil:
@@ -84,7 +85,7 @@ proc getPackCount*(): int =
       "to": $contract.address,
       "data": contract.methods["packCount"].encodeAbi()
     }, "latest"]
-  
+
   let responseStr = status.callPrivateRPC("eth_call", payload)
   let response = Json.decode(responseStr, RpcResponse)
   if not response.error.isNil:
@@ -95,39 +96,38 @@ proc getPackCount*(): int =
 
 # Gets sticker pack data
 proc getPackData*(id: Stuint[256]): StickerPack =
-  {.gcsafe.}:
-    let
-      contract = contracts.getContract("stickers")
-      contractMethod = contract.methods["getPackData"]
-      getPackData = GetPackData(packId: id)
-      payload = %* [{
-        "to": $contract.address,
-        "data": contractMethod.encodeAbi(getPackData)
-        }, "latest"]
-    let responseStr = status.callPrivateRPC("eth_call", payload)
-    let response = Json.decode(responseStr, RpcResponse)
-    if not response.error.isNil:
-      raise newException(RpcException, "Error getting sticker pack data: " & response.error.message)
+  let
+    contract = contracts.getContract("stickers")
+    contractMethod = contract.methods["getPackData"]
+    getPackData = GetPackData(packId: id)
+    payload = %* [{
+      "to": $contract.address,
+      "data": contractMethod.encodeAbi(getPackData)
+      }, "latest"]
+  let responseStr = status.callPrivateRPC("eth_call", payload)
+  let response = Json.decode(responseStr, RpcResponse)
+  if not response.error.isNil:
+    raise newException(RpcException, "Error getting sticker pack data: " & response.error.message)
 
-    let packData = contracts.decodeContractResponse[PackData](response.result)
+  let packData = contracts.decodeContractResponse[PackData](response.result)
 
-    # contract response includes a contenthash, which needs to be decoded to reveal
-    # an IPFS identifier. Once decoded, download the content from IPFS. This content
-    # is in EDN format, ie https://ipfs.infura.io/ipfs/QmWVVLwVKCwkVNjYJrRzQWREVvEk917PhbHYAUhA1gECTM
-    # and it also needs to be decoded in to a nim type
-    let secureSSLContext = newContext()
-    let client = newHttpClient(sslContext = secureSSLContext)
-    let contentHash = contracts.toHex(packData.contentHash)
-    let url = "https://ipfs.infura.io/ipfs/" & decodeContentHash(contentHash)
-    var ednMeta = client.getContent(url)
+  # contract response includes a contenthash, which needs to be decoded to reveal
+  # an IPFS identifier. Once decoded, download the content from IPFS. This content
+  # is in EDN format, ie https://ipfs.infura.io/ipfs/QmWVVLwVKCwkVNjYJrRzQWREVvEk917PhbHYAUhA1gECTM
+  # and it also needs to be decoded in to a nim type
+  let secureSSLContext = newContext()
+  let client = newHttpClient(sslContext = secureSSLContext)
+  let contentHash = contracts.toHex(packData.contentHash)
+  let url = "https://ipfs.infura.io/ipfs/" & decodeContentHash(contentHash)
+  var ednMeta = client.getContent(url)
 
-    # decode the EDN content in to a StickerPack
-    result = edn_helpers.decode[StickerPack](ednMeta)
-    # EDN doesn't include a packId for each sticker, so add it here
-    result.stickers.apply(proc(sticker: var Sticker) =
-      sticker.packId = truncate(id, int))
-    result.id = truncate(id, int)
-    result.price = packData.price
+  # decode the EDN content in to a StickerPack
+  result = edn_helpers.decode[StickerPack](ednMeta)
+  # EDN doesn't include a packId for each sticker, so add it here
+  result.stickers.apply(proc(sticker: var Sticker) =
+    sticker.packId = truncate(id, int))
+  result.id = truncate(id, int)
+  result.price = packData.price
 
 proc tokenOfOwnerByIndex*(address: Address, idx: Stuint[256]): int =
   let
@@ -137,7 +137,7 @@ proc tokenOfOwnerByIndex*(address: Address, idx: Stuint[256]): int =
       "to": $contract.address,
       "data": contract.methods["tokenOfOwnerByIndex"].encodeAbi(tokenOfOwnerByIndex)
     }, "latest"]
-  
+
   let responseStr = status.callPrivateRPC("eth_call", payload)
   let response = Json.decode(responseStr, RpcResponse)
   if not response.error.isNil:
@@ -154,7 +154,7 @@ proc getPackIdFromTokenId*(tokenId: Stuint[256]): int =
       "to": $contract.address,
       "data": contract.methods["tokenPackId"].encodeAbi(tokenPackId)
     }, "latest"]
-  
+
   let responseStr = status.callPrivateRPC("eth_call", payload)
   let response = Json.decode(responseStr, RpcResponse)
   if not response.error.isNil:
@@ -202,7 +202,7 @@ proc getRecentStickers*(): seq[Sticker] =
 
 proc getAvailableStickerPacks*(): Table[int, StickerPack] =
   var availableStickerPacks = initTable[int, StickerPack]()
-  try: 
+  try:
     let numPacks = getPackCount()
     for i in 0..<numPacks:
       try:
diff --git a/src/status/libstatus/tokens.nim b/src/status/libstatus/tokens.nim
index 4a7207c211..4aa8d7c4b4 100644
--- a/src/status/libstatus/tokens.nim
+++ b/src/status/libstatus/tokens.nim
@@ -1,38 +1,40 @@
-import json, chronicles, strformat, stint, strutils, sequtils, tables
-import core, wallet
-import ./eth/contracts
-import web3/[ethtypes, conversions]
-import json_serialization
-import settings
+import
+  json, chronicles, strformat, stint, strutils, sequtils, tables, atomics
+
+import
+  web3/[ethtypes, conversions], json_serialization
+
+import 
+  ./settings, ./core, ./wallet, ./eth/contracts
 from types import Setting, Network, RpcResponse, RpcException
 from utils import parseAddress
-import locks
 
 logScope:
   topics = "wallet"
 
-var customTokensLock: Lock
-initLock(customTokensLock)
+var
+  customTokens {.threadvar.}: seq[Erc20Contract]
+  customTokensInited {.threadvar.}: bool
+  dirty: Atomic[bool]
 
-var customTokens {.guard: customTokensLock.}: seq[Erc20Contract] = @[]
-var dirty {.guard: customTokensLock.}  = true
+dirty.store(true)
 
 proc getCustomTokens*(useCached: bool = true): seq[Erc20Contract] =
-  {.gcsafe.}:
-    withLock customTokensLock:
-      if useCached and not dirty:
-        result = customTokens
-      else: 
-        let payload = %* []
-        let responseStr = callPrivateRPC("wallet_getCustomTokens", payload)
-        # TODO: this should be handled in the deserialisation of RpcResponse,
-        # question has been posed: https://discordapp.com/channels/613988663034118151/616299964242460682/762828178624217109
-        let response = RpcResponse(result: $(responseStr.parseJSON()["result"]))
-        if not response.error.isNil:
-          raise newException(RpcException, "Error getting custom tokens: " & response.error.message)
-        result = if response.result == "null": @[] else: Json.decode(response.result, seq[Erc20Contract])
-        dirty = false
-        customTokens = result
+  let cacheIsDirty = not customTokensInited or dirty.load
+  if useCached and not cacheIsDirty:
+    result = customTokens
+  else: 
+    let payload = %* []
+    let responseStr = callPrivateRPC("wallet_getCustomTokens", payload)
+    # TODO: this should be handled in the deserialisation of RpcResponse,
+    # question has been posed: https://discordapp.com/channels/613988663034118151/616299964242460682/762828178624217109
+    let response = RpcResponse(result: $(responseStr.parseJSON()["result"]))
+    if not response.error.isNil:
+      raise newException(RpcException, "Error getting custom tokens: " & response.error.message)
+    result = if response.result == "null": @[] else: Json.decode(response.result, seq[Erc20Contract])
+    dirty.store(false)
+    customTokens = result
+    customTokensInited = true
 
 proc visibleTokensSNTDefault(): JsonNode =
   let currentNetwork = getCurrentNetwork()
@@ -85,14 +87,12 @@ proc getVisibleTokens*(): seq[Erc20Contract] =
 proc addCustomToken*(address: string, name: string, symbol: string, decimals: int, color: string) =
   let payload = %* [{"address": address, "name": name, "symbol": symbol, "decimals": decimals, "color": color}]
   discard callPrivateRPC("wallet_addCustomToken", payload)
-  withLock customTokensLock:
-    dirty = true
+  dirty.store(true)
 
 proc removeCustomToken*(address: string) =
   let payload = %* [address]
   echo callPrivateRPC("wallet_deleteCustomToken", payload)
-  withLock customTokensLock:
-    dirty = true
+  dirty.store(true)
 
 proc getTokensBalances*(accounts: openArray[string], tokens: openArray[string]): JsonNode =
   let payload = %* [accounts, tokens]
diff --git a/src/status/status.nim b/src/status/status.nim
index 12bb0eab37..adf604303b 100644
--- a/src/status/status.nim
+++ b/src/status/status.nim
@@ -4,6 +4,7 @@ import libstatus/settings as libstatus_settings
 import libstatus/types as libstatus_types
 import chat, accounts, wallet, node, network, mailservers, messages, contacts, profile, stickers, permissions, fleet
 import ../eventemitter
+import tasks/task_manager
 
 export chat, accounts, node, mailservers, messages, contacts, profile, network, permissions, fleet
 
@@ -21,9 +22,11 @@ type Status* = ref object
   network*: NetworkModel
   stickers*: StickersModel
   permissions*: PermissionsModel
+  taskManager*: TaskManager
 
-proc newStatusInstance*(fleetConfig: string): Status =
+proc newStatusInstance*(taskManager: TaskManager, fleetConfig: string): Status =
   result = Status()
+  result.taskManager = taskManager
   result.events = createEventEmitter()
   result.fleet = fleet.newFleetModel(result.events, fleetConfig)
   result.chat = chat.newChatModel(result.events)
diff --git a/src/status/stickers.nim b/src/status/stickers.nim
index 5cb032f15c..e9ec65d83a 100644
--- a/src/status/stickers.nim
+++ b/src/status/stickers.nim
@@ -42,7 +42,7 @@ proc init*(self: StickersModel) =
     var evArgs = StickerArgs(e)
     self.addStickerToRecent(evArgs.sticker, evArgs.save)
 
-proc buildTransaction(self: StickersModel, packId: Uint256, address: Address, price: Uint256, approveAndCall: var ApproveAndCall[100], sntContract: var Erc20Contract, gas = "", gasPrice = ""): EthSend =
+proc buildTransaction(packId: Uint256, address: Address, price: Uint256, approveAndCall: var ApproveAndCall[100], sntContract: var Erc20Contract, gas = "", gasPrice = ""): EthSend =
   sntContract = status_contracts.getSntContract()
   let
     stickerMktContract = status_contracts.getContract("sticker-market")
@@ -51,11 +51,11 @@ proc buildTransaction(self: StickersModel, packId: Uint256, address: Address, pr
   approveAndCall = ApproveAndCall[100](to: stickerMktContract.address, value: price, data: DynamicBytes[100].fromHex(buyTxAbiEncoded))
   transactions.buildTokenTransaction(address, sntContract.address, gas, gasPrice)
 
-proc estimateGas*(self: StickersModel, packId: int, address: string, price: string, success: var bool): int =
+proc estimateGas*(packId: int, address: string, price: string, success: var bool): int =
   var
     approveAndCall: ApproveAndCall[100]
     sntContract = status_contracts.getSntContract()
-    tx = self.buildTransaction(
+    tx = buildTransaction(
       packId.u256,
       parseAddress(address),
       eth2Wei(parseFloat(price), sntContract.decimals),
@@ -71,7 +71,7 @@ proc buyPack*(self: StickersModel, packId: int, address, price, gas, gasPrice, p
   var
     sntContract: Erc20Contract
     approveAndCall: ApproveAndCall[100]
-    tx = self.buildTransaction(
+    tx = buildTransaction(
       packId.u256,
       parseAddress(address),
       eth2Wei(parseFloat(price), 18), # SNT
diff --git a/src/status/tasks/stickers.nim b/src/status/tasks/stickers.nim
new file mode 100644
index 0000000000..ccae614326
--- /dev/null
+++ b/src/status/tasks/stickers.nim
@@ -0,0 +1,40 @@
+import
+  chronos, NimQml, json_serialization, task_runner
+
+import
+  ../stickers
+
+type
+  StickerPackPurchaseGasEstimate* = object
+    vptr*: ByteAddress
+    slot*: string
+    packId*: int
+    address*: string
+    price*: string
+    uuid*: string
+  StickersTasks* = ref object
+    chanSendToPool: AsyncChannel[ThreadSafeString]
+
+proc newStickersTasks*(chanSendToPool: AsyncChannel[ThreadSafeString]): StickersTasks =
+  new(result)
+  result.chanSendToPool = chanSendToPool
+
+proc runTask*(stickerPackPurchaseGasEstimate: StickerPackPurchaseGasEstimate) =
+  var success: bool
+  var estimate = estimateGas(
+    stickerPackPurchaseGasEstimate.packId,
+    stickerPackPurchaseGasEstimate.address,
+    stickerPackPurchaseGasEstimate.price,
+    success
+  )
+  if not success:
+    estimate = 325000
+  let result: tuple[estimate: int, uuid: string] = (estimate, stickerPackPurchaseGasEstimate.uuid)
+  let resultPayload = Json.encode(result)
+
+  signal_handler(cast[pointer](stickerPackPurchaseGasEstimate.vptr), resultPayload, stickerPackPurchaseGasEstimate.slot)
+
+proc stickerPackPurchaseGasEstimate*(self: StickersTasks, vptr: pointer, slot: string, packId: int, address: string, price: string, uuid: string) =
+  let task = StickerPackPurchaseGasEstimate(vptr: cast[ByteAddress](vptr), slot: slot, packId: packId, address: address, price: price, uuid: uuid)
+  let payload = task.toJson(typeAnnotations = true)
+  self.chanSendToPool.sendSync(payload.safe)
\ No newline at end of file
diff --git a/src/status/tasks/task_manager.nim b/src/status/tasks/task_manager.nim
new file mode 100644
index 0000000000..b31aeeff12
--- /dev/null
+++ b/src/status/tasks/task_manager.nim
@@ -0,0 +1,27 @@
+import # vendor libs
+  chronicles, task_runner
+
+import # status-desktop libs
+  ./threadpool
+
+export threadpool
+
+logScope:
+  topics = "task-manager"
+
+type
+  TaskManager* = ref object
+    threadPool*: ThreadPool
+
+proc newTaskManager*(): TaskManager =
+  new(result)
+  result.threadPool = newThreadPool()
+
+proc init*(self: TaskManager) =
+  self.threadPool.init()
+
+proc teardown*(self: TaskManager) =
+  self.threadPool.teardown()
+
+
+
diff --git a/src/status/tasks/threadpool.nim b/src/status/tasks/threadpool.nim
new file mode 100644
index 0000000000..1a489334da
--- /dev/null
+++ b/src/status/tasks/threadpool.nim
@@ -0,0 +1,256 @@
+import
+  chronicles, chronos, json, json_serialization, NimQml, sequtils, tables,
+  task_runner
+
+import
+  ./stickers
+export
+  stickers
+
+logScope:
+  topics = "task-threadpool"
+
+type
+  ThreadPool* = ref object
+    chanRecvFromPool*: AsyncChannel[ThreadSafeString]
+    chanSendToPool*: AsyncChannel[ThreadSafeString]
+    thread: Thread[PoolThreadArg]
+    size: int
+    stickers*: StickersTasks
+  PoolThreadArg* = object
+    chanSendToMain*: AsyncChannel[ThreadSafeString]
+    chanRecvFromMain*: AsyncChannel[ThreadSafeString]
+    size*: int
+  TaskThreadArg = object
+    id: int
+    chanRecvFromPool: AsyncChannel[ThreadSafeString]
+    chanSendToPool: AsyncChannel[ThreadSafeString]
+  ThreadNotification = object
+    id: int
+    notice: string
+  
+
+# forward declarations
+proc poolThread(arg: PoolThreadArg) {.thread.}
+
+const MaxThreadPoolSize = 16
+
+proc newThreadPool*(size: int = MaxThreadPoolSize): ThreadPool =
+  new(result)
+  result.chanRecvFromPool = newAsyncChannel[ThreadSafeString](-1)
+  result.chanSendToPool = newAsyncChannel[ThreadSafeString](-1)
+  result.thread = Thread[PoolThreadArg]()
+  result.size = size
+  result.stickers = newStickersTasks(result.chanSendToPool)
+
+proc init*(self: ThreadPool) =
+  self.chanRecvFromPool.open()
+  self.chanSendToPool.open()
+  let arg = PoolThreadArg(
+    chanSendToMain: self.chanRecvFromPool,
+    chanRecvFromMain: self.chanSendToPool,
+    size: self.size
+  )
+  createThread(self.thread, poolThread, arg)
+
+  # block until we receive "ready"
+  let received = $(self.chanRecvFromPool.recvSync())
+
+proc teardown*(self: ThreadPool) =
+  self.chanSendToPool.sendSync("shutdown".safe)
+  self.chanRecvFromPool.close()
+  self.chanSendToPool.close()
+  joinThread(self.thread)
+
+proc task(arg: TaskThreadArg) {.async.} =
+  arg.chanRecvFromPool.open()
+  arg.chanSendToPool.open()
+
+  let noticeToPool = ThreadNotification(id: arg.id, notice: "ready")
+  info "[threadpool task thread] sending 'ready'", threadid=arg.id
+  await arg.chanSendToPool.send(noticeToPool.toJson(typeAnnotations = true).safe)
+
+  while true:
+    info "[threadpool task thread] waiting for message"
+    let received = $(await arg.chanRecvFromPool.recv())
+
+    if received == "shutdown":
+      info "[threadpool task thread] received 'shutdown'"
+      info "[threadpool task thread] breaking while loop"
+      break
+
+    let
+      jsonNode = parseJson(received)
+      messageType = jsonNode{"$type"}.getStr
+
+    info "[threadpool task thread] received task", messageType=messageType
+    info "[threadpool task thread] initiating task", messageType=messageType,
+      threadid=arg.id
+
+    try:
+      case messageType
+        of "StickerPackPurchaseGasEstimate":
+          let decoded = Json.decode(received, StickerPackPurchaseGasEstimate, allowUnknownFields = true)
+          decoded.runTask()
+        else:
+          error "[threadpool task thread] unknown message", message=received
+    except Exception as e:
+      error "[threadpool task thread] exception", error=e.msg
+
+    let noticeToPool = ThreadNotification(id: arg.id, notice: "done")
+    info "[threadpool task thread] sending 'done' notice to pool",
+      threadid=arg.id
+    await arg.chanSendToPool.send(noticeToPool.toJson(typeAnnotations = true).safe)
+
+  arg.chanRecvFromPool.close()
+  arg.chanSendToPool.close()
+
+proc taskThread(arg: TaskThreadArg) {.thread.} =
+  waitFor task(arg)
+
+proc pool(arg: PoolThreadArg) {.async.} =
+  let
+    chanSendToMain = arg.chanSendToMain
+    chanRecvFromMainOrTask = arg.chanRecvFromMain
+  var threadsBusy = newTable[int, tuple[thr: Thread[TaskThreadArg],
+    chanSendToTask: AsyncChannel[ThreadSafeString]]]()
+  var threadsIdle = newSeq[tuple[id: int, thr: Thread[TaskThreadArg],
+    chanSendToTask: AsyncChannel[ThreadSafeString]]](arg.size)
+  var taskQueue: seq[string] = @[] # FIFO queue
+  var allReady = 0
+  chanSendToMain.open()
+  chanRecvFromMainOrTask.open()
+
+  info "[threadpool] sending 'ready' to main thread"
+  await chanSendToMain.send("ready".safe)
+
+  for i in 0..<arg.size:
+    let id = i + 1
+    let chanSendToTask = newAsyncChannel[ThreadSafeString](-1)
+    chanSendToTask.open()
+    info "[threadpool] adding to threadsIdle", threadid=id
+    threadsIdle[i].id = id
+    createThread(
+      threadsIdle[i].thr,
+      taskThread,
+      TaskThreadArg(id: id, chanRecvFromPool: chanSendToTask,
+        chanSendToPool: chanRecvFromMainOrTask
+      )
+    )
+    threadsIdle[i].chanSendToTask = chanSendToTask
+
+  # when task received and number of busy threads == MaxThreadPoolSize,
+  # then put the task in a queue
+
+  # when task received and number of busy threads < MaxThreadPoolSize, pop
+  # a thread from threadsIdle, track that thread in threadsBusy, and run
+  # task in that thread
+
+  # if "done" received from a thread, remove thread from threadsBusy, and
+  # push thread into threadsIdle
+
+  while true:
+    info "[threadpool] waiting for message"
+    var task = $(await chanRecvFromMainOrTask.recv())
+    info "[threadpool] received message", msg=task
+
+    if task == "shutdown":
+      info "[threadpool] sending 'shutdown' to all task threads"
+      for tpl in threadsIdle:
+        await tpl.chanSendToTask.send("shutdown".safe)
+      for tpl in threadsBusy.values:
+        await tpl.chanSendToTask.send("shutdown".safe)
+      info "[threadpool] breaking while loop"
+      break
+
+    let
+      jsonNode = parseJson(task)
+      messageType = jsonNode{"$type"}.getStr
+    info "[threadpool] determined message type", messageType=messageType
+
+    case messageType
+      of "ThreadNotification":
+        try:
+          let notification = Json.decode(task, ThreadNotification, allowUnknownFields = true)
+          info "[threadpool] received notification",
+            notice=notification.notice, threadid=notification.id
+
+          if notification.notice == "ready":
+            info "[threadpool] received 'ready' from a task thread"
+            allReady = allReady + 1
+
+          elif notification.notice == "done":
+            let tpl = threadsBusy[notification.id]
+            info "[threadpool] adding to threadsIdle",
+                newlength=(threadsIdle.len + 1)
+            threadsIdle.add (notification.id, tpl.thr, tpl.chanSendToTask)
+            info "[threadpool] removing from threadsBusy",
+              newlength=(threadsBusy.len - 1), threadid=notification.id
+            threadsBusy.del notification.id
+
+            if taskQueue.len > 0:
+              info "[threadpool] removing from taskQueue",
+                newlength=(taskQueue.len - 1)
+              task = taskQueue[0]
+              taskQueue.delete 0, 0
+
+              info "[threadpool] removing from threadsIdle",
+                newlength=(threadsIdle.len - 1)
+              let tpl = threadsIdle[0]
+              threadsIdle.delete 0, 0
+              info "[threadpool] adding to threadsBusy",
+                newlength=(threadsBusy.len + 1), threadid=tpl.id
+              threadsBusy.add tpl.id, (tpl.thr, tpl.chanSendToTask)
+              await tpl.chanSendToTask.send(task.safe)
+
+          else:
+            error "[threadpool] unknown notification", notice=notification.notice
+        except Exception as e:
+          warn "[threadpool] unknown error in thread notification", message=task, error=e.msg
+
+      else: # must be a request to do task work
+        if allReady < arg.size or threadsBusy.len == arg.size:
+          # add to queue
+          info "[threadpool] adding to taskQueue",
+            newlength=(taskQueue.len + 1)
+          taskQueue.add task
+
+        # do we have available threads in the threadpool?
+        elif threadsBusy.len < arg.size:
+          # check if we have tasks waiting on queue
+          if taskQueue.len > 0:
+            # remove first element from the task queue
+            info "[threadpool] adding to taskQueue",
+              newlength=(taskQueue.len + 1)
+            taskQueue.add task
+            info "[threadpool] removing from taskQueue",
+              newlength=(taskQueue.len - 1)
+            task = taskQueue[0]
+            taskQueue.delete 0, 0
+
+          info "[threadpool] removing from threadsIdle",
+            newlength=(threadsIdle.len - 1)
+          let tpl = threadsIdle[0]
+          threadsIdle.delete 0, 0
+          info "[threadpool] adding to threadsBusy",
+            newlength=(threadsBusy.len + 1), threadid=tpl.id
+          threadsBusy.add tpl.id, (tpl.thr, tpl.chanSendToTask)
+          await tpl.chanSendToTask.send(task.safe)
+
+
+  var allTaskThreads: seq[Thread[TaskThreadArg]] = @[]
+
+  for tpl in threadsIdle:
+    tpl.chanSendToTask.close()
+    allTaskThreads.add tpl.thr
+  for tpl in threadsBusy.values:
+    tpl.chanSendToTask.close()
+    allTaskThreads.add tpl.thr
+
+  chanSendToMain.close()
+  chanRecvFromMainOrTask.close()
+
+  joinThreads(allTaskThreads)
+
+proc poolThread(arg: PoolThreadArg) {.thread.} =
+  waitFor pool(arg)
diff --git a/src/status/wallet.nim b/src/status/wallet.nim
index 01a5d2c48d..fe5ce3e812 100644
--- a/src/status/wallet.nim
+++ b/src/status/wallet.nim
@@ -349,3 +349,18 @@ proc getGasPricePredictions*(self: WalletModel): GasPricePrediction =
   except Exception as e:
     echo "error getting gas price predictions"
     echo e.msg
+
+proc getGasPricePredictions2*(): GasPricePrediction =
+  if status_settings.getCurrentNetwork() != Network.Mainnet:
+    # TODO: what about other chains like xdai?
+    return GasPricePrediction(safeLow: 1.0, standard: 2.0, fast: 3.0, fastest: 4.0)
+  try:
+    let url: string = fmt"https://etherchain.org/api/gasPriceOracle"
+    let secureSSLContext = newContext()
+    let client = newHttpClient(sslContext = secureSSLContext)
+    client.headers = newHttpHeaders({ "Content-Type": "application/json" })
+    let response = client.request(url)
+    result = Json.decode(response.body, GasPricePrediction)
+  except Exception as e:
+    echo "error getting gas price predictions"
+    echo e.msg
diff --git a/vendor/DOtherSide b/vendor/DOtherSide
index 1cc16aaa5c..5177a129d4 160000
--- a/vendor/DOtherSide
+++ b/vendor/DOtherSide
@@ -1 +1 @@
-Subproject commit 1cc16aaa5c643d0d33c31f9953fbe4a9f6bde151
+Subproject commit 5177a129d45985bb61471d7afecd397a82ed9d42
diff --git a/vendor/edn.nim b/vendor/edn.nim
index 4cda60880e..3305e41f9d 160000
--- a/vendor/edn.nim
+++ b/vendor/edn.nim
@@ -1 +1 @@
-Subproject commit 4cda60880e108f0cb7efe1c209308f2db03267d9
+Subproject commit 3305e41f9da3f2f21c56bd23b74b0a3589f3bf3e
diff --git a/vendor/nim-libp2p b/vendor/nim-libp2p
index 8d9e231a74..70deac9e0d 160000
--- a/vendor/nim-libp2p
+++ b/vendor/nim-libp2p
@@ -1 +1 @@
-Subproject commit 8d9e231a74c1afc76b6745e05020f8d4e33501e7
+Subproject commit 70deac9e0d16f7d00a0d4404ed191042dbf079be
diff --git a/vendor/nim-task-runner b/vendor/nim-task-runner
new file mode 160000
index 0000000000..a87f3f85be
--- /dev/null
+++ b/vendor/nim-task-runner
@@ -0,0 +1 @@
+Subproject commit a87f3f85be052fb3332358f95079a059cf1daf15