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OpenAPI Specification

openapi: 3.2.0
info:
  title: Clusters Registration 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.
  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: Registration
  description: Check availability and build registration transaction data
paths:
  /names/register/check:
    post:
      operationId: checkNameAvailability
      tags:
      - Registration
      summary: Check availability
      description: Check the availability of one or more cluster names.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                type: string
      responses:
        '200':
          description: Availability results
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Availability'
  /names/register/evm:
    post:
      operationId: getRegistrationDataEvm
      tags:
      - Registration
      summary: Get EVM registration data
      description: Get the transaction data for registering a cluster name on an EVM chain so a user can sign it.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RegistrationRequest'
      responses:
        '200':
          description: Registration transaction data
          content:
            application/json:
              schema:
                type: object
  /names/register/solana:
    post:
      operationId: getRegistrationDataSolana
      tags:
      - Registration
      summary: Get Solana registration data
      description: Get the transaction data for registering a cluster name on Solana so a user can sign it.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RegistrationRequest'
      responses:
        '200':
          description: Registration transaction data
          content:
            application/json:
              schema:
                type: object
components:
  schemas:
    Availability:
      type: object
      properties:
        name:
          type: string
        isAvailable:
          type: boolean
    RegistrationRequest:
      type: object
      required:
      - network
      - sender
      - names
      properties:
        network:
          type: string
          description: Chain id (e.g. "1", "10", "8453") or "solana".
        sender:
          type: string
        names:
          type: array
          items:
            type: object
            properties:
              name:
                type: string
              amountWei:
                type: string
        referralClusterId:
          type: string
  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.