{"uid":"cap_unv1Laui5et9eI71ndnDj","slug":"nomos-signed-decision-receipt-bbff699f","name":"Nomos Signed Decision Receipt","description":"Machine-payable service intelligence for discovering, verifying, and monitoring identity, risk, authorization, execution-preflight, and evidence APIs before autonomous agents spend.","url":"https://base-agent-preflight.bytoken2023.workers.dev/x402/v1/evidence/signed-decision-receipt","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"decision":{"type":"string"},"evidence_references":{"type":"string"}}},"responseSchema":{"type":"json","example":{"network":"eip155:8453","product":"nomos-signed-decision-receipt","assessment":{"flags":[],"risk_level":"low","risk_score":0}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"2","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$2/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_QvY3_PLQwg3vzSHeZZyov","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"2","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Creates a cryptographically signed, on-chain receipt attesting to an autonomous agent's decision, including risk assessment and evidence references.","exampleAgentPrompt":"Generate a signed decision receipt for my agent's decision 'Approved transfer of 500 USDC to wallet 0xABC' with evidence reference 'tx-hash:0x123def' so I have a tamper-proof audit record on Base.","exampleUseCases":[{"title":"Compliance audit trail for agent transfers","prompt":"My agent just approved a payment — can you create a signed decision receipt for 'Approved outbound USDC transfer to vendor wallet 0xDEAD' with evidence reference 'invoice-id:INV-2024-88' so I have a verifiable audit record?"},{"title":"Risk-attested authorization for agent fleet","prompt":"Before my agent fleet executes this contract interaction, generate a signed decision receipt for 'Authorized smart contract call on protocol XYZ' referencing evidence 'preflight-check:pass-v2' so I can prove the decision was risk-assessed and recorded."},{"title":"Tamper-proof log of declined agent action","prompt":"My agent decided to reject a suspicious transfer request — please create a signed receipt for decision 'Declined transfer due to anomalous recipient address' with evidence reference 'risk-flag:high-velocity-alert' so we have an immutable record of why it was blocked."}],"resultDescription":"Returns a JSON object containing the Base network identifier (eip155:8453), the product name ('nomos-signed-decision-receipt'), and an assessment object with a risk_score (numeric), risk_level (e.g. 'low'), and a flags array listing any risk signals — all cryptographically signed as an on-chain attestation of the submitted decision and evidence.","failureModes":["Missing or empty 'decision' field returns a validation error","Missing 'evidence_references' may result in incomplete or rejected receipt","Payment failure (x402) blocks the call before processing","Malformed input JSON returns a 400-level error","Network congestion on Base may delay finality of the signed receipt","Duplicate submissions are not idempotent — each call produces a new receipt"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically signed, on-chain attestation of an autonomous agent's decision for audit, compliance, or legal accountability purposes — particularly when you need a risk score and evidence reference bundled into one receipt on the Base network. Prefer this over generic logging when tamper-proof verifiability and blockchain anchoring are required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:01:55.907Z","isFirstParty":false}