5arz Proof Of Human MCP Server

by lumirx Your server? Claim it

answering

5arz Proof Of Human is answering right now. Last checked 6 min ago. It exposes 9 tools.

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

Uptime history 91 days of history · worst day 92%

91 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

81 ms

Response time

average over 24h

authentication required

Access

streamable-http

What changed 13

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 17 August 2026. No other catalogue keeps this.

22 Aug a tool description was rewritten verify_human

18 Aug 2 tool descriptions were rewritten register_agent, subscribe

17 Aug 4 tools appeared get_attestation_receipt, list_verified_human_tasks, purchase_verified_human_task and 1 more

17 Aug 3 tool descriptions were rewritten4 times that day get_balance, register_agent, verify_human

17 Aug a tool disappeared buy_credits

17 Aug a tool changed the parameters it asks for verify_human

and 1 more, back to 17 August 2026

5arz Proof Of Human missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add 5arz-proof-of-human --transport http https://mcp.5arz.com

Settings → Connectors → Add custom connector, then paste this address

https://mcp.5arz.com

~/.codex/config.toml

[mcp_servers.5arz-proof-of-human]
url = "https://mcp.5arz.com"

.cursor/mcp.json

{
  "mcpServers": {
    "5arz-proof-of-human": {
      "url": "https://mcp.5arz.com"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "5arz-proof-of-human": {
      "type": "http",
      "url": "https://mcp.5arz.com"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.

Available tools 9

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

attestation

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.

balance

get_balance

Return the current plan, seals and document checks used this month, and what remains. Requires an API key.

credential

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.

purchase

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 key required; the payment is the authentication.

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 test credentials as production proof. The key is shown once; store it.

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 CHECKS are the vendor identity verification and are what you are really paying for. Human verification is always free to the human, at any volume. Requires an API key.

verified

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.

verify

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 person holds only one account — read sybil_checked in the returned claims before gating one-per-person actions. Counts as one seal against your monthly plan allowance (1,000/month on Free; unlimited for test keys). Returns an ES256 JWT that anyone can verify against the public JWKS — pass it to check_credential. Requires an API key (Authorization: Bearer, or the apiKey argument).

vhh

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.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

buy_credits

removed 17 Aug 2026

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.5arz.com	streamable-http	needs auth	40 ms	6 min ago

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5arz Proof Of Human — questions

Answers built from our own checks of this server.

What can 5arz Proof Of Human do?

It exposes 9 tools, read directly from the server on our last check. Among them: check_credential, get_attestation_receipt, get_balance, get_vhh_index, list_verified_human_tasks, purchase_verified_human_task and 3 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is 5arz Proof Of Human working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 81 ms. The bar chart above shows every period we have measured.

Did 5arz Proof Of Human ever remove tools?

Yes. buy_credits is no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.

How do I connect 5arz Proof Of Human?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own credentials: it refuses anonymous clients.

Does 5arz Proof Of Human need an API key?

Yes. Every time we knock, 5arz Proof Of Human answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is 5arz Proof Of Human?

It answers our handshake in 81 ms on average, which is faster than 94% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.