5arz Proof Of Human

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io.github.LumiRx/5arz-proof-of-humanv1.0.0

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

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check_credential Read-only

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 either the legacy pohf_jwt / pop_jwt or the standards-conformant sd_jwt_vc (IETF SD-JWT VC, typ dc+sd-jwt).

pohf_jwtstring, required

The credential returned by verify_human — the compact JWT, or the sd_jwt_vc string (ends in ~).

Tools (9)

check_credential

read-only

Argument	Type	Description
pohf_jwt*	string	The credential returned by verify_human — the compact JWT, or the sd_jwt_vc string (ends in ~).

Input schema (JSON)

{
  "type": "object",
  "required": [
    "pohf_jwt"
  ],
  "properties": {
    "pohf_jwt": {
      "type": "string",
      "description": "The credential returned by verify_human — the compact JWT, or the sd_jwt_vc string (ends in ~)."
    }
  },
  "additionalProperties": false
}

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.

read-only

Argument	Type	Description
attestation_id*	string	Returned at fulfillment, or in the X-Attestation-Id header on the buy response.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "attestation_id"
  ],
  "properties": {
    "attestation_id": {
      "type": "string",
      "description": "Returned at fulfillment, or in the X-Attestation-Id header on the buy response."
    }
  },
  "additionalProperties": false
}

get_balance

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

read-only

Argument	Type	Description
apiKey	string	Optional: pass your key here if your client cannot set the Authorization header.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "apiKey": {
      "type": "string",
      "description": "Optional: pass your key here if your client cannot set the Authorization header."
    }
  },
  "additionalProperties": false
}

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.

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

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.

read-only

Argument	Type	Description
limit	number	Max tasks to return (default 20, max 100).

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "number",
      "description": "Max tasks to return (default 20, max 100)."
    }
  },
  "additionalProperties": false
}

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.

destructive

Argument	Type	Description
task_id*	string	Task id from list_verified_human_tasks.
x_payment	string	Optional X-PAYMENT settlement proof. Omit to receive the 402 challenge.
purchase_id	string	Purchase id from the previous 402. Required when presenting an x_payment.
agent_key_thumb	string	Optional RFC 7638 JWK thumbprint of your agent key; embedded in the receipt's cnf.jkt claim.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "task_id"
  ],
  "properties": {
    "task_id": {
      "type": "string",
      "description": "Task id from list_verified_human_tasks."
    },
    "x_payment": {
      "type": "string",
      "description": "Optional X-PAYMENT settlement proof. Omit to receive the 402 challenge."
    },
    "purchase_id": {
      "type": "string",
      "description": "Purchase id from the previous 402. Required when presenting an x_payment."
    },
    "agent_key_thumb": {
      "type": "string",
      "description": "Optional RFC 7638 JWK thumbprint of your agent key; embedded in the receipt's cnf.jkt claim."
    }
  },
  "additionalProperties": false
}

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.

Argument	Type	Description
mode	string	live for production keys; test for an unlimited free sandbox key.
name*	string	Your company or agent name.
contactEmail*	string	Contact email for the account.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "name",
    "contactEmail"
  ],
  "properties": {
    "mode": {
      "enum": [
        "live",
        "test"
      ],
      "type": "string",
      "default": "live",
      "description": "live for production keys; test for an unlimited free sandbox key."
    },
    "name": {
      "type": "string",
      "description": "Your company or agent name."
    },
    "contactEmail": {
      "type": "string",
      "format": "email",
      "description": "Contact email for the account."
    }
  },
  "additionalProperties": false
}

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.

Argument	Type	Description
plan*	string	starter=$99/mo, growth=$499/mo, scale=$2,499/mo. See https://5arz.com/pricing.
apiKey	string	Optional: pass your key here if your client cannot set the Authorization header.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "plan"
  ],
  "properties": {
    "plan": {
      "enum": [
        "starter",
        "growth",
        "scale"
      ],
      "type": "string",
      "description": "starter=$99/mo, growth=$499/mo, scale=$2,499/mo. See https://5arz.com/pricing."
    },
    "apiKey": {
      "type": "string",
      "description": "Optional: pass your key here if your client cannot set the Authorization header."
    }
  },
  "additionalProperties": false
}

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).

Argument	Type	Description
apiKey	string	Optional: pass your key here if your client cannot set the Authorization header.
wallet	string	Optional EVM address to bind for on-chain isVerifiedHuman() gating (personhood path).
memberId	string	Member to attest as an ID-verified, live human (personhood path).
sessionId	string	Verified session to attest (work-fulfillment path).
walletSig	string	Optional EIP-191 personal_sign of the wallet challenge.
walletNonce	string	Optional wallet challenge nonce.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "apiKey": {
      "type": "string",
      "description": "Optional: pass your key here if your client cannot set the Authorization header."
    },
    "wallet": {
      "type": "string",
      "description": "Optional EVM address to bind for on-chain isVerifiedHuman() gating (personhood path)."
    },
    "memberId": {
      "type": "string",
      "description": "Member to attest as an ID-verified, live human (personhood path)."
    },
    "sessionId": {
      "type": "string",
      "description": "Verified session to attest (work-fulfillment path)."
    },
    "walletSig": {
      "type": "string",
      "description": "Optional EIP-191 personal_sign of the wallet challenge."
    },
    "walletNonce": {
      "type": "string",
      "description": "Optional wallet challenge nonce."
    }
  },
  "additionalProperties": false
}