aid: clusters
name: Clusters
description: >-
  Clusters is a multichain namespace and identity service that gives users a
  single universal name across blockchain ecosystems instead of a separate
  domain per chain. A Clusters name uses the format username/wallet (for example
  username/eth or username/sol) to bundle many wallets — EVM chains, Solana, and
  more — under one hierarchical, human-readable profile. The Clusters v1 REST API
  resolves an address to its cluster and wallet name and back, reads full cluster
  profiles, checks name availability, produces on-chain registration transaction
  data for EVM and Solana, registers community cluster names, and exposes a
  replayable historical event feed for permissionless indexing. Reads are public;
  wallet management and registration require a wallet-signature bearer token, and
  an optional API key raises rate limits. The protocol uses a hub-and-spoke model
  bridged with LayerZero v2 and replicates metadata to Arweave for data
  availability. Backed by Electric Capital.
url: https://raw.githubusercontent.com/api-evangelist/clusters/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- electric-capital
x-tier: profiled
x-tier-reason: enriched-from-public-docs
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://clusters.xyz/assets/images/apple/apple-touch-icon.png
tags:
- Company
- Infrastructure
- Identity
- Naming
- Blockchain
- Web3
- Wallet
- Multichain
- Resolver
apis:
- aid: clusters:clusters-authentication-api
  name: Clusters Authentication API
  description: Wallet-signature authentication for write operations
  humanURL: https://docs.clusters.xyz/getting-started/api/v1
  baseURL: https://api.clusters.xyz/v1
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/clusters-authentication-api-openapi.yml
  - type: APIReference
    url: https://docs.clusters.xyz/getting-started/api/v1
- aid: clusters:clusters-clusters-api
  name: Clusters Clusters API
  description: Read and create clusters (profiles bundling wallets)
  humanURL: https://docs.clusters.xyz/getting-started/api/v1
  baseURL: https://api.clusters.xyz/v1
  tags:
  - Clusters
  properties:
  - type: OpenAPI
    url: openapi/clusters-clusters-api-openapi.yml
  - type: APIReference
    url: https://docs.clusters.xyz/getting-started/api/v1
- aid: clusters:clusters-communities-api
  name: Clusters Communities API
  description: Community cluster name availability and registration
  humanURL: https://docs.clusters.xyz/getting-started/api/v1
  baseURL: https://api.clusters.xyz/v1
  tags:
  - Communities
  properties:
  - type: OpenAPI
    url: openapi/clusters-communities-api-openapi.yml
  - type: APIReference
    url: https://docs.clusters.xyz/getting-started/api/v1
- aid: clusters:clusters-events-api
  name: Clusters Events API
  description: Replayable historical event feed
  humanURL: https://docs.clusters.xyz/getting-started/api/v1
  baseURL: https://api.clusters.xyz/v1
  tags:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/clusters-events-api-openapi.yml
  - type: APIReference
    url: https://docs.clusters.xyz/getting-started/api/v1
- aid: clusters:clusters-names-api
  name: Clusters Names API
  description: Resolve addresses to cluster/wallet names and back
  humanURL: https://docs.clusters.xyz/getting-started/api/v1
  baseURL: https://api.clusters.xyz/v1
  tags:
  - Names
  properties:
  - type: OpenAPI
    url: openapi/clusters-names-api-openapi.yml
  - type: APIReference
    url: https://docs.clusters.xyz/getting-started/api/v1
- aid: clusters:clusters-registration-api
  name: Clusters Registration API
  description: Check availability and build registration transaction data
  humanURL: https://docs.clusters.xyz/getting-started/api/v1
  baseURL: https://api.clusters.xyz/v1
  tags:
  - Registration
  properties:
  - type: OpenAPI
    url: openapi/clusters-registration-api-openapi.yml
  - type: APIReference
    url: https://docs.clusters.xyz/getting-started/api/v1
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: VulnerabilityDisclosure
  url: security/clusters-vulnerability-disclosure.yml
- type: Security
  url: https://clusters.xyz/vulnerability-disclosure
- type: DomainSecurity
  url: security/clusters-domain-security.yml
- type: AgenticAccess
  url: agentic-access/clusters-agentic-access.yml
- type: Authentication
  url: authentication/clusters-authentication.yml
- type: Website
  url: https://clusters.xyz/
- type: DeveloperPortal
  url: https://clusters.xyz/developer
- type: Documentation
  url: https://docs.clusters.xyz/
- type: APIReference
  url: https://docs.clusters.xyz/getting-started/api/v1
- type: GettingStarted
  url: https://docs.clusters.xyz/getting-started/javascript
- type: SignUp
  url: https://clusters.xyz/developer
- type: GitHubOrganization
  url: https://github.com/clustersxyz
- type: Blog
  url: https://clusters.xyz/blog
- type: TermsOfService
  url: https://clusters.xyz/terms
- type: PrivacyPolicy
  url: https://clusters.xyz/privacy
- type: SDKs
  url: packages/clusters-packages.yml
- type: Packages
  url: packages/clusters-packages.yml
- type: LLMsTxt
  url: llms/clusters-llms.txt
- type: WellKnown
  url: well-known/clusters-well-known.yml
- type: MCPServer
  url: mcp/clusters-mcp.yml
- type: Overlay
  url: overlays/clusters-v1-overlay.yaml
- type: Conformance
  url: conformance/clusters-conformance.yml
- type: ErrorCatalog
  url: errors/clusters-problem-types.yml
- type: Lifecycle
  url: lifecycle/clusters-lifecycle.yml
- type: Deprecation
  url: lifecycle/clusters-lifecycle.yml
- type: Conventions
  url: conventions/clusters-conventions.yml
- type: DataModel
  url: data-model/clusters-data-model.yml
- type: Sandbox
  url: sandbox/clusters-sandbox.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Arazzo
  name: Resolve a Clusters name to a wallet and profile
  url: arazzo/clusters-resolve-name.yml
- type: Arazzo
  name: Check availability and build Clusters registration data
  url: arazzo/clusters-register-name.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence