Clusters Authentication API

openapi: 3.1.0
info:
  title: Clusters Authentication API
  version: '1.0'
  description: Clusters is a multichain namespace and identity service that gives users a single universal name (username/wallet) resolvable across EVM, Solana, and other blockchain ecosystems. The v1 REST API resolves addresses to cluster names and back, reads cluster profiles, checks name availability, produces registration transaction data, manages community clusters, and streams a replayable historical event feed. Read endpoints are public; write/manage endpoints require a wallet-signature bearer token. An optional API key raises rate limits.
  contact:
    name: Clusters
    url: https://docs.clusters.xyz
  x-apievangelist-provenance:
    method: generated
    source: https://docs.clusters.xyz/getting-started/api/v1
    note: Faithfully modeled from the provider's published v1 documentation; the Clusters team does not publish an OpenAPI definition. Base URL verified live 2026-07-18.
servers:
- url: https://api.clusters.xyz/v1
  description: Production v1
security:
- ApiKeyAuth: []
- {}
tags:
- name: Authentication
  description: Wallet-signature authentication for write operations
paths:
  /auth/message:
    get:
      operationId: getSigningMessage
      tags:
      - Authentication
      summary: Get signing message
      description: Get the signing message used for wallet signature authentication.
      responses:
        '200':
          description: The message to sign and the corresponding signing date
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SigningMessage'
  /auth/token:
    post:
      operationId: createAuthToken
      tags:
      - Authentication
      summary: Get authentication key
      description: Authenticate ownership of a specific wallet by submitting a signed message.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AuthTokenRequest'
      responses:
        '200':
          description: The auth key used for authenticated requests
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AuthToken'
components:
  schemas:
    AuthTokenRequest:
      type: object
      required:
      - signature
      - signingDate
      - type
      - wallet
      properties:
        signature:
          type: string
        signingDate:
          type: string
          format: date-time
        type:
          type: string
          enum:
          - evm
          - solana
        wallet:
          type: string
    AuthToken:
      type: object
      properties:
        token:
          type: string
    SigningMessage:
      type: object
      properties:
        message:
          type: string
        signingDate:
          type: string
          format: date-time
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-KEY
      description: Optional API key from https://clusters.xyz/developer to raise rate limits.
    WalletBearerAuth:
      type: http
      scheme: bearer
      description: Wallet-signature auth token obtained from POST /auth/token.