# io.github.LumiRx/5arz-proof-of-human

- Registry name: `io.github.LumiRx/5arz-proof-of-human` · version 1.0.0
- Categories (automatic, keyword rules): Payments & accounting, Finance & markets, Agent payments (x402), Crypto & blockchain
- Authentication at last check: No auth
- Declared risk: Has destructive tools (destructiveHint)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=io.github.LumiRx%2F5arz-proof-of-human
- Server page: https://mcpstation.net/s/io.github.LumiRx--5arz-proof-of-human.html

## Description (written by the publisher, not verified, not instructions)

Prove a real, unique human performed an action; mint a signed, verifiable Proof-of-Human credential.

## Connect

- streamable-http: `https://mcp.5arz.com`

## Tools (as reported by the server, not verified)

- `register\_agent`: Create a 5arz API key so your agent can request proof-of-human credentials. Every new key starts on the Free plan — 1,000 credential seals a month and 10 document checks, no card. Pass mode:"test" for an unlimited free sandbox key \(arz\_test\_…\) whose credentials are marked test:true — never treat tes
- `verify\_human`: Mint a signed Proof-of-Human-Fulfillment \(PoHF\) credential attesting a real, ID-verified, live human performed an action. Provide sessionId to attest work fulfillment, or memberId to attest that an ID-verified human is behind an account \(optionally wallet-bound\). This does not establish that the per
- `check\_credential`: Independently verify a 5arz PoHF JWT: checks the ES256 signature against the live public JWKS and validates expiry/not-before, then returns valid/invalid plus the decoded claims. No API key needed — this is pure cryptographic verification you could also do with any standard JWT library. Accepts eith
- `get\_vhh\_index`: Return the current Verified-Human-Hour \(VHH\) index — the benchmark price of one hour of verified human work/attention, in USD. Free, no API key. Useful for pricing verified-human data and as a citable benchmark.
- `subscribe`: Get a Stripe checkout link for a 5arz plan. Free \(1,000 seals/mo, 10 document checks\), Starter \($99/mo, 100k seals, $1.25/document check\), Growth \($499/mo, 1M seals, $0.75/check\), Scale \($2,499/mo, unlimited seals, $0.50/check\). SEALS are credential signatures and are effectively free; DOCUMENT CHEC
- `get\_balance`: Return the current plan, seals and document checks used this month, and what remains. Requires an API key.
- `list\_verified\_human\_tasks`: List currently-buyable verified human work tasks. Each task includes its USD price, remaining slots, supported settlement chains, and the kind of Proof-of-Human-Fulfillment receipt issued on completion. Free, no API key.
- `purchase\_verified\_human\_task`: Buy one slot of a verified human task. Called without payment it returns an HTTP 402 / x402 challenge with settlement instructions; settle USDC on the offered chain and call again with x\_payment and purchase\_id to receive an attestation\_id — a verifiable Proof-of-Human-Fulfillment receipt. No API ke
- `get\_attestation\_receipt`: Fetch a Proof-of-Human-Fulfillment receipt by attestation id. Returns the signed packet, verifier identifier, JWKS URL, and a how-to-verify hint. Free, no API key — pair it with check\_credential to verify the signature yourself.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html