generated: '2026-09-19'
method: searched
source: https://agent-economy.kgninja.dev/verification-recipes.json
docs:
- https://agent-economy.kgninja.dev/.well-known/agent-skills/verify-json-evidence/SKILL.md
- https://agent-economy.kgninja.dev/docs/deterministic-json-verification
- https://agent-economy.kgninja.dev/.well-known/x402
probed:
- {url: 'https://agent-economy.kgninja.dev/validate-request', method: POST, body: '{}', status: 400, fetched: '2026-09-19', note: 'reason_code INVALID_REQUEST_SCHEMA with the canonical offer attached — the free precheck is live and answers without any credential'}
- {url: 'https://agent-economy.kgninja.dev/quote', method: POST, body: '{}', status: 400, fetched: '2026-09-19', note: 'INVALID_IDEMPOTENCY_KEY — the free quote route is live'}
- {url: 'https://agent-economy.kgninja.dev/verify-evidence', method: POST, body: '{}', status: 409, fetched: '2026-09-19', note: 'PRECHECK_REQUIRED — the paid route refuses to create a quote or a 402 without a precheck; no payment path was exercised'}
- {url: 'https://agent-economy.kgninja.dev/mcp', method: POST, body: 'tools/call describe_verify_evidence {}', status: 200, fetched: '2026-09-19', note: 'the free read-only MCP tool answered with limits and the canonical offer'}
summary: >-
  There is no separate test environment, no test-mode key and no simulated payment: production is the
  only host, and the x402 manifest states simulation false and mockMode false. What KG-NINJA publishes
  instead is a rehearsal surface that is mandatory rather than optional — a free precheck whose receipt
  digest the paid call must carry, a free quote, four free MCP tools — plus provider-authored fixtures: three
  verification recipes each carrying a literally-submittable precheck_intent_example, the SKILL.md worked
  example, and the x402 manifest's bazaar example_usage. A testnet chain id (Base Sepolia, eip155:84532) is
  enumerated in the contract's network enums, but no page says that testnet payments are accepted.
test_vs_live:
  separate_environment: false
  key_prefixes: not applicable — no keys are issued
  simulation: false
  mock_mode: false
  source: 'well-known/kgninja-dev-x402.json: "simulation": false, "simulation_notice": null; accepts[].extra.mockMode false'
  testnet:
    declared: eip155:84532 (Base Sepolia) in Price.network, VerificationSpendPolicy.network, X402PaymentRequirement.network and the MCP tool inputSchemas
    served: eip155:8453 only (x402 manifest accepts[], canonical offer, agent.json payment)
    note: 'Declared in schema, not offered on any served terms; whether the facilitator would settle an eip155:84532 payment is not stated anywhere found. Recorded as declared and unverified — not as a sandbox.'
dry_run:
  operation: validateVerificationRequest
  route: POST /validate-request
  cost: free — no key and no payment
  behaviour: >-
    "This endpoint performs no external fetch, creates no quote, transaction, or payment, executes no
    assertion, returns no signed evidence, and retains or logs no raw evidence." It validates the request
    and the spend policy and returns an unsigned PrecheckReceipt (schema agent-economy/precheck-receipt/2.0)
    whose receipt_digest must be copied into the paid intent; the paid route recomputes it.
  guarantee: 'SKILL.md: "A successful precheck creates no quote or transaction, calls no Verification Core, executes no assertion, and returns no signed evidence."'
  mandatory: true — verifyEvidence answers 409 PRECHECK_REQUIRED without it
  also_free: [quoteVerifyEvidence (POST /quote), mcp:describe_verify_evidence, mcp:quote_verify_evidence, mcp:prepare_verify_evidence_purchase, a2a:prepare-json-evidence-verification]
fixtures:
  verification_recipes:
    source: https://agent-economy.kgninja.dev/verification-recipes.json
    file: sandbox/kgninja-dev-verification-recipes.json
    fetched: '2026-09-19'
    version: 0.4.3
    note: Provider-published recipes (schema agent-economy/verification-recipes/1.0), each with use_when, do_not_use_when, risk reduction, limitations and a precheck_intent_example that can be POSTed to /validate-request as-is. Saved verbatim.
    recipes:
    - {id: x402-settlement-consistency, summary: 'Check whether network, asset, amount, payTo, resource and transaction-hash fields in supplied settlement JSON match explicit expected values. It performs no on-chain lookup.'}
    - {id: payment-delivery-record-match, summary: 'Check whether supplied payment and delivery JSON refer to the same expected transaction, quote, resource and amount. It does not prove fulfillment.'}
    - {id: signed-manifest-integrity, summary: 'Check the SHA-256 digest of supplied manifest, receipt or configuration JSON bytes and optionally assert selected fields. It does not prove provenance.'}
  skill_example:
    source: https://agent-economy.kgninja.dev/.well-known/agent-skills/verify-json-evidence/SKILL.md
    note: 'The SKILL.md "Request construction" example, verbatim; it "makes no paid call".'
    precheck_input:
      request:
        client_request_id: agent-example-001
        evidence: {media_type: application/json, content_base64: eyJzdGF0dXMiOiJyZWFkeSJ9}
        assertions:
        - {op: json_pointer_equals, path: /status, expected: ready}
      spend_policy:
        policy_version: agent-economy/precheck-policy/2.0
        max_amount_atomic: '10000'
        network: eip155:8453
        asset: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
        pay_to: '0x4D7d842536De9Eb491AE2300126B3CDdE7B0aDE3'
    decoded_evidence: '{"status":"ready"}'
  x402_bazaar_example:
    source: https://agent-economy.kgninja.dev/.well-known/x402
    file: well-known/kgninja-dev-x402.json
    note: 'resources[0].extensions.bazaar.info carries an example input body (client_request_id agent-example-001, evidence {"invoice":{"currency":"USD","total":1250}} base64-encoded, one json_pointer_equals assertion on /invoice/currency, a spend_policy and a precheck_receipt_digest) and an example output (transaction_id txn_example, quote_id qte_example, verification outcome pass, receipt rcpt_example). Placeholder ids; the digest values are examples, not live receipts.'
  minimal_request:
    source: https://agent-economy.kgninja.dev/docs/deterministic-json-verification
    body: '{"client_request_id":"agent-example-001","evidence":{"media_type":"application/json","content_base64":"eyJzdGF0dXMiOiJyZWFkeSJ9"},"assertions":[{"op":"json_pointer_equals","path":"/status","expected":"ready"}]}'
verification_keys:
  jwks: https://agent-economy.kgninja.dev/.well-known/jwks.json
  file: well-known/kgninja-dev-jwks.json
  note: A consumer verifying a returned evidence signature offline needs only this public key; no sandbox key exists because no sandbox exists.