ARAKEL AP2 Agent Authority Check

x402

ARAKEL AP2 Agent Authority Check is a paid API for AI agents from proof.arakelproof.space, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).

Verifies an AP2 payment receipt JWT and mandate chain against a trusted root JWK, returning a machine-verifiable authority decision with constraint validation for autonomous agents.

Price / call$0.005

Seller volume →—

Success—

StatusUnknown

How this service works

$0.001 OFAC destination-wallet preflight for autonomous agents, plus machine-verifiable official-source evidence over x402 USDC on Base.

Output

Returns a JSON object with a schema identifier ('arakel.ap2.agent-authority-check.v1'), a decision string (e.g. 'VERIFIED_UNDER_SUPPLIED_ROOT'), the signature algorithm used (Ed25519), a boolean indicating verification under the supplied root, and a constraints block listing whether all constraints passed, any unresolved items, and any violations found.

Example use cases

Pre-execution agent payment check

“Before my agent releases the digital asset, verify this AP2 receipt JWT using my issuer JWK and confirm the mandate chain has no violations and the audience matches 'https://myservice.example.com'.”

Autonomous agent mandate validation

“I have a dSD-JWT mandate chain from my agent and a payment receipt JWT — can you run the ARAKEL authority check against my trusted root JWK to confirm everything is verified and constraints passed?”

Post-payment attestation for audit

“We just processed an x402 USDC payment on Base with transaction ID 'txn_abc123' — can you verify the AP2 receipt JWT and return a signed authority decision I can store as machine-verifiable evidence of the transaction?”

Technical details

Endpoint

POSThttps://proof.arakelproof.space/v1/ap2/agent-authority-check?utm_source=zero.xyz

When to prefer

Choose this endpoint when an autonomous agent needs cryptographic, machine-verifiable proof that an AP2 payment receipt JWT is authentic and that mandate chain constraints are satisfied before taking an irreversible action. Prefer it over generic JWT validation when you need ARAKEL-signed authority decisions with Ed25519 attestation, constraint evaluation, and auditability over x402 USDC on Base.

Side effects

Invalid or mismatched receipt JWT signature — returns verification failure decision
Trusted root JWK not provided or malformed — unable to perform root verification
Mandate chain and expected_reference both absent — ambiguous receipt context
Nonce or audience mismatch — constraint violation returned
Expired or replayed JWT — decision returned with violation details
Malformed JWK format — parse error response

Input

Schema · Request body

Field	Type	Description
issuer_jwk	object	Caller-trusted receipt issuer P-256 public JWK
receipt_jwt	string	AP2 ES256 Payment Receipt JWT
expected_aud	string
mandate_chain	string	AP2 dSD-JWT mandate chain; for receipt verification provide this or expected_reference
expected_nonce	string
mandate_context	object
trusted_root_jwk	object	Caller-trusted P-256 root public JWK
expected_reference	string	For receipt verification provide this or mandate_chain
expected_transaction_id	string
expected_open_checkout_hash	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "schema": "arakel.ap2.agent-authority-check.v1",
    "decision": "VERIFIED_UNDER_SUPPLIED_ROOT",
    "signature": {
      "alg": "Ed25519"
    },
    "constraints": {
      "passed": true,
      "unresolved": [],
      "violations": []
    },
    "verified_under_supplied_root": true
  }
}

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