diff --git a/ProjectPlugins/CodexPlugin/CodexPlugin.csproj b/ProjectPlugins/CodexPlugin/CodexPlugin.csproj
index 19c3b60..47899a0 100644
--- a/ProjectPlugins/CodexPlugin/CodexPlugin.csproj
+++ b/ProjectPlugins/CodexPlugin/CodexPlugin.csproj
@@ -7,7 +7,23 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <None Remove="openapi.yaml" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <OpenApiReference Include="openapi.yaml" CodeGenerator="NSwagCSharp" Namespace="CodexOpenApi" ClassName="CodexApi" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.ApiDescription.Client" Version="7.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+    <PackageReference Include="NSwag.ApiDescription.Client" Version="13.18.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
   </ItemGroup>
 
   <ItemGroup>
diff --git a/ProjectPlugins/CodexPlugin/openapi.yaml b/ProjectPlugins/CodexPlugin/openapi.yaml
new file mode 100644
index 0000000..adfc887
--- /dev/null
+++ b/ProjectPlugins/CodexPlugin/openapi.yaml
@@ -0,0 +1,717 @@
+openapi: 3.0.3
+
+info:
+  version: 0.0.1
+  title: Codex API
+  description: "List of endpoints and interfaces available to Codex API users"
+
+security:
+  - { }
+
+components:
+  schemas:
+    MultiAddress:
+      type: string
+      description: Address of node as specified by the multi-address specification https://multiformats.io/multiaddr/
+      example: /ip4/127.0.0.1/tcp/8080
+
+    PeerId:
+      type: string
+      description: Peer Identity reference as specified at https://docs.libp2p.io/concepts/fundamentals/peers/
+      example: QmYyQSo1c1Ym7orWxLYvCrM2EmxFTANf8wXmmE7DWjhx5N
+
+    Id:
+      type: string
+      description: 32bits identifier encoded in hex-decimal string.
+      example: 0x...
+
+    BigInt:
+      type: string
+      description: Integer represented as decimal string
+
+    Cid:
+      type: string
+      description: Content Identifier as specified at https://github.com/multiformats/cid
+      example: QmYyQSo1c1Ym7orWxLYvCrM2EmxFTANf8wXmmE7DWjhx5N
+
+    SlotId:
+      type: string
+      description: Keccak hash of the abi encoded tuple (RequestId, slot index)
+      example: 268a781e0db3f7cf36b18e5f4fdb7f586ec9edd08e5500b17c0e518a769f114a
+
+    LogLevel:
+      type: string
+      description: "One of the log levels: TRACE, DEBUG, INFO, NOTICE, WARN, ERROR or FATAL"
+      example: DEBUG
+
+    EthereumAddress:
+      type: string
+      description: Address of Ethereum address
+
+    Reward:
+      type: string
+      description: The maximum amount of tokens paid per second per slot to hosts the client is willing to pay
+
+    Duration:
+      type: string
+      description: The duration of the request in seconds as decimal string
+
+    ProofProbability:
+      type: string
+      description: How often storage proofs are required as decimal string
+
+    Expiry:
+      type: string
+      description: A timestamp as seconds since unix epoch at which this request expires if the Request does not find requested amount of nodes to host the data.
+      default: 10 minutes
+
+    ErasureParameters:
+      type: object
+      properties:
+        totalChunks:
+          type: number
+
+    PoRParameters:
+      description: Parameters for Proof of Retrievability
+      type: object
+      properties:
+        u:
+          type: string
+        publicKey:
+          type: string
+        name:
+          type: string
+
+    Content:
+      type: object
+      description: Parameters specifying the content
+      properties:
+        cid:
+          $ref: "#/components/schemas/Cid"
+        erasure:
+          $ref: "#/components/schemas/ErasureParameters"
+        por:
+          $ref: "#/components/schemas/PoRParameters"
+
+    DebugInfo:
+      type: object
+      properties:
+        id:
+          $ref: "#/components/schemas/PeerId"
+        addrs:
+          type: array
+          items:
+            $ref: "#/components/schemas/MultiAddress"
+        repo:
+          type: string
+          description: Path of the data repository where all nodes data are stored
+        spr:
+          type: string
+          description: Signed Peer Record to advertise DHT connection information
+
+    SalesAvailability:
+      type: object
+      properties:
+        id:
+          $ref: "#/components/schemas/Id"
+        totalSize:
+          type: string
+          description: Total size of availability's storage in bytes as decimal string
+        duration:
+          $ref: "#/components/schemas/Duration"
+        minPrice:
+          type: string
+          description: Minimum price to be paid (in amount of tokens) as decimal string
+        maxCollateral:
+          type: string
+          description: Maximum collateral user is willing to pay per filled Slot (in amount of tokens) as decimal string
+
+    SalesAvailabilityREAD:
+      allOf:
+        - $ref: "#/components/schemas/SalesAvailability"
+        - type: object
+          properties:
+            freeSize:
+              type: string
+              description: Unused size of availability's storage in bytes as decimal string
+
+    SalesAvailabilityCREATE:
+      allOf:
+        - $ref: "#/components/schemas/SalesAvailability"
+        - required:
+            - totalSize
+            - minPrice
+            - maxCollateral
+            - duration
+
+    Slot:
+      type: object
+      properties:
+        id:
+          $ref: "#/components/schemas/SlotId"
+        request:
+          $ref: "#/components/schemas/StorageRequest"
+        slotIndex:
+          type: string
+          description: Slot Index as hexadecimal string
+
+    Reservation:
+      type: object
+      properties:
+        id:
+          $ref: "#/components/schemas/Id"
+        availabilityId:
+          $ref: "#/components/schemas/Id"
+        size:
+          $ref: "#/components/schemas/BigInt"
+        requestId:
+          $ref: "#/components/schemas/Id"
+        slotIndex:
+          type: string
+          description: Slot Index as hexadecimal string
+
+    StorageRequestCreation:
+      type: object
+      required:
+        - reward
+        - duration
+        - proofProbability
+        - collateral
+        - expiry
+      properties:
+        duration:
+          $ref: "#/components/schemas/Duration"
+        reward:
+          $ref: "#/components/schemas/Reward"
+        proofProbability:
+          $ref: "#/components/schemas/ProofProbability"
+        nodes:
+          type: number
+          description: Minimal number of nodes the content should be stored on
+          default: 1
+        tolerance:
+          type: number
+          description: Additional number of nodes on top of the `nodes` property that can be lost before pronouncing the content lost
+          default: 0
+        collateral:
+          type: string
+          description: Number as decimal string that represents how much collateral is asked from hosts that wants to fill a slots
+        expiry:
+          type: string
+          description: Number as decimal string that represents expiry time of the request (in unix timestamp)
+
+    StorageAsk:
+      type: object
+      required:
+        - reward
+      properties:
+        slots:
+          type: number
+          description: Number of slots (eq. hosts) that the Request want to have the content spread over
+        slotSize:
+          type: string
+          description: Amount of storage per slot (in bytes) as decimal string
+        duration:
+          $ref: "#/components/schemas/Duration"
+        proofProbability:
+          $ref: "#/components/schemas/ProofProbability"
+        reward:
+          $ref: "#/components/schemas/Reward"
+        maxSlotLoss:
+          type: number
+          description: Max slots that can be lost without data considered to be lost
+
+    StorageRequest:
+      type: object
+      properties:
+        id:
+          type: string
+          description: Request ID
+        client:
+          $ref: "#/components/schemas/EthereumAddress"
+        ask:
+          $ref: "#/components/schemas/StorageAsk"
+        content:
+          $ref: "#/components/schemas/Content"
+        expiry:
+          $ref: "#/components/schemas/Expiry"
+        nonce:
+          type: string
+          description: Random data
+
+    Purchase:
+      type: object
+      properties:
+        state:
+          type: string
+          description: Description of the Request's state
+        error:
+          type: string
+          description: If Request failed, then here is presented the error message
+        request:
+          $ref: "#/components/schemas/StorageRequest"
+
+    DataList:
+      type: object
+      properties:
+        content:
+          type: array
+          items:
+            $ref: "#/components/schemas/DataItem"
+
+    DataItem:
+      type: object
+      properties:
+        cid:
+          $ref: "#/components/schemas/Cid"
+        manifest:
+          $ref: "#/components/schemas/ManifestItem"
+
+    ManifestItem:
+      type: object
+      properties:
+        rootHash:
+          $ref: "#/components/schemas/Cid"
+          description: "Root hash of the content"
+        originalBytes:
+          type: number
+          description: "Length of original content in bytes"
+        blockSize:
+          type: number
+          description: "Size of blocks"
+        protected:
+          type: boolean
+          description: "Indicates if content is protected by erasure-coding"
+
+    Space:
+      type: object
+      properties:
+        totalBlocks:
+          type: number
+          description: "Number of blocks stored by the node"
+        quotaMaxBytes:
+          type: number
+          description: "Maximum storage space used by the node"
+        quotaUsedBytes:
+          type: number
+          description: "Amount of storage space currently in use"
+        quotaReservedBytes:
+          type: number
+          description: "Amount of storage space reserved"
+
+servers:
+  - url: "http://localhost:8080/api/codex/v1"
+
+tags:
+  - name: Marketplace
+    description: Marketplace information and operations
+  - name: Data
+    description: Data operations
+  - name: Node
+    description: Node management
+  - name: Debug
+    description: Debugging configuration
+
+paths:
+  "/connect/{peerId}":
+    get:
+      summary: "Connect to a peer"
+      description: |
+        If `addrs` param is supplied, it will be used to dial the peer, otherwise the `peerId` is used
+        to invoke peer discovery, if it succeeds the returned addresses will be used to dial.
+      tags: [ Node ]
+      operationId: connectPeer
+      parameters:
+        - in: path
+          name: peerId
+          required: true
+          schema:
+              $ref: "#/components/schemas/PeerId"
+          description: Peer that should be dialed.
+        - in: query
+          name: addrs
+          schema:
+            type: array
+            nullable: true
+            items:
+              $ref: "#/components/schemas/MultiAddress"
+          description: |
+            If supplied, it will be used to dial the peer.
+            The address has to target the listening address of the peer,
+            which is specified with the `--listen-addrs` CLI flag.
+
+      responses:
+        "200":
+          description: Successfully connected to peer
+        "400":
+          description: Peer either not found or was not possible to dial
+
+  "/data":
+    get:
+      summary: "Lists manifest CIDs stored locally in node."
+      tags: [ Data ]
+      operationId: listData
+      responses:
+        "200":
+          description: Retrieved list of content CIDs
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: "#/components/schemas/DataList"
+        "400":
+          description: Invalid CID is specified
+        "404":
+          description: Content specified by the CID is not found
+        "500":
+          description: Well it was bad-bad
+    post:
+      summary: "Upload a file in a streaming manner. Once finished, the file is stored in the node and can be retrieved by any node in the network using the returned CID."
+      tags: [ Data ]
+      operationId: upload
+      requestBody:
+        content:
+          application/octet-stream:
+            schema:
+              type: string
+              format: binary
+      responses:
+        "200":
+          description: CID of uploaded file
+          content:
+            text/plain:
+              schema:
+                type: string
+        "500":
+          description: Well it was bad-bad and the upload did not work out
+
+  "/data/{cid}":
+    get:
+      summary: "Download a file from the local node in a streaming manner. If the file is not available locally, a 404 is returned."
+      tags: [ Data ]
+      operationId: downloadLocal
+      parameters:
+        - in: path
+          name: cid
+          required: true
+          schema:
+              $ref: "#/components/schemas/Cid"
+          description: File to be downloaded.
+
+      responses:
+        "200":
+          description: Retrieved content specified by CID
+          content:
+            application/octet-stream:
+              schema:
+                type: string
+                format: binary
+        "400":
+          description: Invalid CID is specified
+        "404":
+          description: Content specified by the CID is unavailable locally
+        "500":
+          description: Well it was bad-bad
+
+  "/data/{cid}/network":
+    get:
+      summary: "Download a file from the network in a streaming manner. If the file is not available locally, it will be retrieved from other nodes in the network if able."
+      tags: [ Data ]
+      operationId: downloadNetwork
+      parameters:
+        - in: path
+          name: cid
+          required: true
+          schema:
+              $ref: "#/components/schemas/Cid"
+          description: "File to be downloaded."
+      responses:
+        "200":
+          description: Retrieved content specified by CID
+          content:
+            application/octet-stream:
+              schema:
+                type: string
+                format: binary
+        "400":
+          description: Invalid CID is specified
+        "404":
+          description: Content specified by the CID is not found
+        "500":
+          description: Well it was bad-bad
+
+  "/space":
+    get:
+      summary: "Gets a summary of the storage space allocation of the node."
+      tags: [ Data ]
+      operationId: space
+      responses:
+        "200":
+          description: "Summary of storage allocation"
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Space"
+
+        "500":
+          description: "It's not working as planned"
+
+  "/sales/slots":
+    get:
+      summary: "Returns active slots"
+      tags: [ Marketplace ]
+      operationId: getActiveSlots
+      responses:
+        "200":
+          description: Retrieved active slots
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: "#/components/schemas/Slot"
+
+        "503":
+          description: Sales are unavailable
+
+  "/sales/slots/{slotId}":
+    get:
+      summary: "Returns active slot with id {slotId} for the host"
+      tags: [ Marketplace ]
+      operationId: getActiveSlotById
+      parameters:
+        - in: path
+          name: slotId
+          required: true
+          schema:
+            $ref: "#/components/schemas/Cid"
+          description: File to be downloaded.
+      responses:
+        "200":
+          description: Retrieved active slot
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Slot"
+
+        "400":
+          description: Invalid or missing SlotId
+
+        "404":
+          description: Host is not in an active sale for the slot
+
+        "503":
+          description: Sales are unavailable
+
+  "/sales/availability":
+    get:
+      summary: "Returns storage that is for sale"
+      tags: [ Marketplace ]
+      operationId: getOfferedStorage
+      responses:
+        "200":
+          description: Retrieved storage availabilities of the node
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: "#/components/schemas/SalesAvailability"
+        "500":
+          description: Error getting unused availabilities
+        "503":
+          description: Sales are unavailable
+
+    post:
+      summary: "Offers storage for sale"
+      operationId: offerStorage
+      tags: [ Marketplace ]
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/SalesAvailabilityCREATE"
+      responses:
+        "201":
+          description: Created storage availability
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/SalesAvailabilityREAD"
+        "400":
+          description: Invalid data input
+        "422":
+          description: Not enough node's storage quota available
+        "500":
+          description: Error reserving availability
+        "503":
+          description: Sales are unavailable
+  "/sales/availability/{id}":
+    patch:
+      summary: "Updates availability"
+      description: |
+        The new parameters will be only considered for new requests.
+        Existing Requests linked to this Availability will continue as is.
+      operationId: updateOfferedStorage
+      tags: [ Marketplace ]
+      parameters:
+        - in: path
+          name: id
+          required: true
+          schema:
+            type: string
+          description: ID of Availability
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/SalesAvailability"
+      responses:
+        "204":
+          description: Availability successfully updated
+        "400":
+          description: Invalid data input
+        "404":
+          description: Availability not found
+        "422":
+          description: Not enough node's storage quota available
+        "500":
+          description: Error reserving availability
+        "503":
+          description: Sales are unavailable
+
+  "/sales/availability/{id}/reservations":
+    patch:
+      summary: "Get availability's reservations"
+      description: Return's list of Reservations for ongoing Storage Requests that the node hosts.
+      operationId: getReservations
+      tags: [ Marketplace ]
+      parameters:
+        - in: path
+          name: id
+          required: true
+          schema:
+            type: string
+          description: ID of Availability
+      responses:
+        "200":
+          description: Retrieved storage availabilities of the node
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: "#/components/schemas/Reservation"
+        "400":
+          description: Invalid Availability ID
+        "404":
+          description: Availability not found
+        "500":
+          description: Error getting reservations
+        "503":
+          description: Sales are unavailable
+
+  "/storage/request/{cid}":
+    post:
+      summary: "Creates a new Request for storage"
+      tags: [ Marketplace ]
+      operationId: createStorageRequest
+      parameters:
+        - in: path
+          name: cid
+          required: true
+          schema:
+            $ref: "#/components/schemas/Cid"
+          description: CID of the uploaded data that should be stored
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/StorageRequestCreation"
+      responses:
+        "200":
+          description: Returns the Request ID as decimal string
+        "400":
+          description: Invalid or missing Request ID
+        "404":
+          description: Request ID not found
+        "503":
+          description: Purchasing is unavailable
+
+  "/storage/purchases":
+    get:
+      summary: "Returns list of purchase IDs"
+      tags: [ Marketplace ]
+      operationId: getPurchases
+      responses:
+        "200":
+          description: Gets all purchase IDs stored in node
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  type: string
+        "503":
+          description: Purchasing is unavailable
+
+  "/storage/purchases/{id}":
+    get:
+      summary: "Returns purchase details"
+      tags: [ Marketplace ]
+      operationId: getPurchase
+      parameters:
+        - in: path
+          name: id
+          required: true
+          schema:
+            type: string
+          description: Hexadecimal ID of a Purchase
+      responses:
+        "200":
+          description: Purchase details
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Purchase"
+        "400":
+          description: Invalid or missing Purchase ID
+        "404":
+          description: Purchase not found
+        "503":
+          description: Purchasing is unavailable
+
+  "/debug/chronicles/loglevel":
+    post:
+      summary: "Set log level at run time"
+      tags: [ Debug ]
+      operationId: setDebugLogLevel
+
+      parameters:
+        - in: query
+          name: level
+          required: true
+          schema:
+            $ref: "#/components/schemas/LogLevel"
+
+      responses:
+        "200":
+          description: Successfully log level set
+        "400":
+          description: Invalid or missing log level
+        "500":
+          description: Well it was bad-bad
+
+  "/debug/info":
+    get:
+      summary: "Gets node information"
+      operationId: getDebugInfo
+      tags: [ Debug ]
+      responses:
+        "200":
+          description: Node's information
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/DebugInfo"