Clusters
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.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Clusters the way a machine reads it — 19 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Clusters scores 20.6/100 (emerging), with a separate agent-readiness read of 21/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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How we profile Clusters
Each block below is one kind of artifact we hold for Clusters. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 6
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
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
Open Collections 7
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONClusters Authentication API
OPEN COLLECTIONAuthentication Clusters API
OPEN COLLECTIONClusters Authentication Communities API
OPEN COLLECTIONClusters Authentication Events API
OPEN COLLECTIONClusters Authentication Names API
OPEN COLLECTIONClusters Authentication Registration API
OPEN COLLECTIONScroll within the panel for all 7 ·
Arazzo Workflows 2
Real integrations are rarely a single call. Arazzo describes the multi-step sequences — auth, then create, then confirm — so both a human and an agent can follow the choreography, not just the endpoints.
Multi-step API workflows described with the Arazzo specification.
Check availability and build Clusters registration data
Check whether a name is available, then build the EVM registration transaction data to sign.
ARAZZOResolve a Clusters name to a wallet and profile
Bulk-resolve a cluster name to its address, then read the full cluster profile.
ARAZZOSecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Clusters — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 7 ·
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/clusters · machine-readable index on apis.io
This is an independent, third-party profile of Clusters, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.