# Clusters

**Canonical:** https://apis.io/providers/clusters/  
**Website:** https://clusters.xyz/  
**APIs profiled:** 6

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.

## Kin Score — 38.4 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 38.4).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 55.9 |
| Governance | 16.7 |
| Contract Governance | 16.7 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 56.5 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Payments**: 35.9 (matched via tags).

## Agent readiness — 34.0 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (6)

- **Clusters Authentication API** — Wallet-signature authentication for write operations
- **Clusters Clusters API** — Read and create clusters (profiles bundling wallets)
- **Clusters Communities API** — Community cluster name availability and registration
- **Clusters Events API** — Replayable historical event feed
- **Clusters Names API** — Resolve addresses to cluster/wallet names and back
- **Clusters Registration API** — Check availability and build registration transaction data

## MCP servers (1)

- **Clusters MCP Server**

## Agentic access (1)

- **Clusters Agentic Access** — 14 operations · 7 acting

## Security (3)

- **Clusters Authentication** — apiKey/http · 2 schemes
- **Clusters Domain Security** — TLSv1.3 · HSTS
- **Clusters Vulnerability Disclosure** — disclosure policy published

## Tags

Company, Infrastructure, Identity, Naming, Blockchain, Web3, Wallets, Multi-Chain, Resolver

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/clusters/). Scores are computed from the provider's own public artifacts under a published rubric.