diff --git a/packages/status-js/protos/protocol-message.proto b/packages/status-js/protos/protocol-message.proto
new file mode 100644
index 0000000..3df1736
--- /dev/null
+++ b/packages/status-js/protos/protocol-message.proto
@@ -0,0 +1,88 @@
+syntax = "proto3";
+
+message SignedPreKey {
+  bytes signed_pre_key = 1;
+  uint32 version = 2;
+  uint32 protocol_version = 3;
+}
+
+// X3DH prekey bundle
+message Bundle {
+  // Identity key
+  bytes identity = 1;
+  // Installation id
+  map<string,SignedPreKey> signed_pre_keys = 2;
+  // Prekey signature
+  bytes signature = 4;
+
+  // When the bundle was created locally
+  int64 timestamp = 5;
+}
+
+message BundleContainer {
+  reserved 3;
+  // X3DH prekey bundle
+  Bundle bundle = 1;
+  // Private signed prekey
+  bytes private_signed_pre_key = 2;
+}
+
+message DRHeader {
+  // Current ratchet public key
+  bytes key = 1;
+  // Number of the message in the sending chain
+  uint32 n = 2;
+  // Length of the previous sending chain
+  uint32 pn = 3;
+  // Bundle ID
+  bytes id = 4;
+}
+
+message DHHeader {
+  // Compressed ephemeral public key
+  bytes key = 1;
+}
+
+message X3DHHeader {
+  reserved 3;
+  // Ephemeral key used
+  bytes key = 1;
+  // Used bundle's signed prekey
+  bytes id = 4;
+}
+
+// Hash Ratchet Header
+message HRHeader {
+  // community key ID
+  uint32 key_id = 1;
+  // Community message number for this key_id
+  uint32 seq_no = 2;
+  // Community ID
+  string group_id = 3;
+}
+
+// Direct message value
+message EncryptedMessageProtocol {
+  X3DHHeader X3DH_header = 1;
+  DRHeader DR_header = 2;
+  DHHeader DH_header = 101;
+  HRHeader HR_header = 102;
+  // Encrypted payload
+  bytes payload = 3;
+}
+
+// Top-level protocol message
+message ProtocolMessage {
+  // The device id of the sender
+  string installation_id = 2;
+
+  // List of bundles
+  repeated Bundle bundles = 3;
+
+  // One to one message, encrypted, indexed by installation_id
+  // TODO map here is redundant in case of community messages
+  map<string,EncryptedMessageProtocol> encrypted_message = 101;
+
+  // Public chats, not encrypted
+  bytes public_message = 102;
+}
diff --git a/packages/status-js/protos/protocol-message.ts b/packages/status-js/protos/protocol-message.ts
new file mode 100644
index 0000000..02b2562
--- /dev/null
+++ b/packages/status-js/protos/protocol-message.ts
@@ -0,0 +1,223 @@
+/* eslint-disable import/export */
+/* eslint-disable @typescript-eslint/no-namespace */
+
+import { encodeMessage, decodeMessage, message, bytes, uint32, int64, string } from 'protons-runtime'
+import type { Codec } from 'protons-runtime'
+
+export interface SignedPreKey {
+  signedPreKey: Uint8Array
+  version: number
+  protocolVersion: number
+}
+
+export namespace SignedPreKey {
+  export const codec = (): Codec<SignedPreKey> => {
+    return message<SignedPreKey>({
+      1: { name: 'signedPreKey', codec: bytes },
+      2: { name: 'version', codec: uint32 },
+      3: { name: 'protocolVersion', codec: uint32 }
+    })
+  }
+
+  export const encode = (obj: SignedPreKey): Uint8Array => {
+    return encodeMessage(obj, SignedPreKey.codec())
+  }
+
+  export const decode = (buf: Uint8Array): SignedPreKey => {
+    return decodeMessage(buf, SignedPreKey.codec())
+  }
+}
+
+export interface Bundle {
+  identity: Uint8Array
+  signedPreKeys: SignedPreKey
+  signature: Uint8Array
+  timestamp: bigint
+}
+
+export namespace Bundle {
+  export const codec = (): Codec<Bundle> => {
+    return message<Bundle>({
+      1: { name: 'identity', codec: bytes },
+      2: { name: 'signedPreKeys', codec: SignedPreKey.codec() },
+      4: { name: 'signature', codec: bytes },
+      5: { name: 'timestamp', codec: int64 }
+    })
+  }
+
+  export const encode = (obj: Bundle): Uint8Array => {
+    return encodeMessage(obj, Bundle.codec())
+  }
+
+  export const decode = (buf: Uint8Array): Bundle => {
+    return decodeMessage(buf, Bundle.codec())
+  }
+}
+
+export interface BundleContainer {
+  bundle: Bundle
+  privateSignedPreKey: Uint8Array
+}
+
+export namespace BundleContainer {
+  export const codec = (): Codec<BundleContainer> => {
+    return message<BundleContainer>({
+      1: { name: 'bundle', codec: Bundle.codec() },
+      2: { name: 'privateSignedPreKey', codec: bytes }
+    })
+  }
+
+  export const encode = (obj: BundleContainer): Uint8Array => {
+    return encodeMessage(obj, BundleContainer.codec())
+  }
+
+  export const decode = (buf: Uint8Array): BundleContainer => {
+    return decodeMessage(buf, BundleContainer.codec())
+  }
+}
+
+export interface DRHeader {
+  key: Uint8Array
+  n: number
+  pn: number
+  id: Uint8Array
+}
+
+export namespace DRHeader {
+  export const codec = (): Codec<DRHeader> => {
+    return message<DRHeader>({
+      1: { name: 'key', codec: bytes },
+      2: { name: 'n', codec: uint32 },
+      3: { name: 'pn', codec: uint32 },
+      4: { name: 'id', codec: bytes }
+    })
+  }
+
+  export const encode = (obj: DRHeader): Uint8Array => {
+    return encodeMessage(obj, DRHeader.codec())
+  }
+
+  export const decode = (buf: Uint8Array): DRHeader => {
+    return decodeMessage(buf, DRHeader.codec())
+  }
+}
+
+export interface DHHeader {
+  key: Uint8Array
+}
+
+export namespace DHHeader {
+  export const codec = (): Codec<DHHeader> => {
+    return message<DHHeader>({
+      1: { name: 'key', codec: bytes }
+    })
+  }
+
+  export const encode = (obj: DHHeader): Uint8Array => {
+    return encodeMessage(obj, DHHeader.codec())
+  }
+
+  export const decode = (buf: Uint8Array): DHHeader => {
+    return decodeMessage(buf, DHHeader.codec())
+  }
+}
+
+export interface X3DHHeader {
+  key: Uint8Array
+  id: Uint8Array
+}
+
+export namespace X3DHHeader {
+  export const codec = (): Codec<X3DHHeader> => {
+    return message<X3DHHeader>({
+      1: { name: 'key', codec: bytes },
+      4: { name: 'id', codec: bytes }
+    })
+  }
+
+  export const encode = (obj: X3DHHeader): Uint8Array => {
+    return encodeMessage(obj, X3DHHeader.codec())
+  }
+
+  export const decode = (buf: Uint8Array): X3DHHeader => {
+    return decodeMessage(buf, X3DHHeader.codec())
+  }
+}
+
+export interface HRHeader {
+  keyId: number
+  seqNo: number
+  groupId: string
+}
+
+export namespace HRHeader {
+  export const codec = (): Codec<HRHeader> => {
+    return message<HRHeader>({
+      1: { name: 'keyId', codec: uint32 },
+      2: { name: 'seqNo', codec: uint32 },
+      3: { name: 'groupId', codec: string }
+    })
+  }
+
+  export const encode = (obj: HRHeader): Uint8Array => {
+    return encodeMessage(obj, HRHeader.codec())
+  }
+
+  export const decode = (buf: Uint8Array): HRHeader => {
+    return decodeMessage(buf, HRHeader.codec())
+  }
+}
+
+export interface EncryptedMessageProtocol {
+  X3DHHeader: X3DHHeader
+  DRHeader: DRHeader
+  DHHeader: DHHeader
+  HRHeader: HRHeader
+  payload: Uint8Array
+}
+
+export namespace EncryptedMessageProtocol {
+  export const codec = (): Codec<EncryptedMessageProtocol> => {
+    return message<EncryptedMessageProtocol>({
+      1: { name: 'X3DHHeader', codec: X3DHHeader.codec() },
+      2: { name: 'DRHeader', codec: DRHeader.codec() },
+      101: { name: 'DHHeader', codec: DHHeader.codec() },
+      102: { name: 'HRHeader', codec: HRHeader.codec() },
+      3: { name: 'payload', codec: bytes }
+    })
+  }
+
+  export const encode = (obj: EncryptedMessageProtocol): Uint8Array => {
+    return encodeMessage(obj, EncryptedMessageProtocol.codec())
+  }
+
+  export const decode = (buf: Uint8Array): EncryptedMessageProtocol => {
+    return decodeMessage(buf, EncryptedMessageProtocol.codec())
+  }
+}
+
+export interface ProtocolMessage {
+  installationId: string
+  bundles: Bundle[]
+  encryptedMessage: EncryptedMessageProtocol
+  publicMessage: Uint8Array
+}
+
+export namespace ProtocolMessage {
+  export const codec = (): Codec<ProtocolMessage> => {
+    return message<ProtocolMessage>({
+      2: { name: 'installationId', codec: string },
+      3: { name: 'bundles', codec: Bundle.codec(), repeats: true },
+      101: { name: 'encryptedMessage', codec: EncryptedMessageProtocol.codec() },
+      102: { name: 'publicMessage', codec: bytes }
+    })
+  }
+
+  export const encode = (obj: ProtocolMessage): Uint8Array => {
+    return encodeMessage(obj, ProtocolMessage.codec())
+  }
+
+  export const decode = (buf: Uint8Array): ProtocolMessage => {
+    return decodeMessage(buf, ProtocolMessage.codec())
+  }
+}