mcp server
5arz-proof-of-human
Prove a real, unique human performed an action; mint a signed, verifiable Proof-of-Human credential.
Description as published by the maintainer. Source
- version 1.0.0
- active
active — Registry entry last updated 2026-07-15.
What this server can do
6 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.
buy_credits(pack, apiKey)- Get a Stripe checkout link for a prepaid verification pack: starter (100 / $49), growth (1,000 / $299), or scale (10,000 / $1,999). Credits post on payment. Test keys skip this (unlimited). For pay-per-call settlement, 5arz also supports x402. Requires an API key. Required: pack.
check_credential(pohf_jwt)- 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. Required: pohf_jwt.
get_balance(apiKey)- Return remaining prepaid verification credits, plus lifetime purchased/consumed. Requires an API key.
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.
register_agent(mode, name, contactEmail)- Create a 5arz API key so your agent can request proof-of-human credentials. Every new key includes a 20-verification free tier (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. Required: name, contactEmail.
verify_human(apiKey, wallet, memberId, sessionId, walletSig, walletNonce)- Mint a signed Proof-of-Human-Fulfillment (PoHF) credential attesting a real, unique, attentive human performed an action. Provide sessionId to attest work fulfillment, or memberId to attest personhood (anti-sybil, optionally wallet-bound). Spends 1 credit (free inside the 20-verification tier; 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).
Last successful function declaration observed on . Source: https://mcp.5arz.com. We list what the server declared; we do not call any of these functions.
Endpoint status observed on . Source: https://mcp.5arz.com.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| Latest published version | 1.0.0 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-07-15 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-07-15 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| mcp tools declared | 6 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | mcp.5arz.com | |
| mcp endpoint status | ok | The server listed 6 functions when asked. | as of probe | mcp.5arz.com |
Where to get it
This record as data
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