{"uid":"cap_IlZc31lXGhneVntoXf4r_","slug":"arakel-federal-award-search-machine-evidence-b8360ac2","name":"ARAKEL Federal Award Search – Machine Evidence","description":"Machine-verifiable official-source evidence with free preflight and x402 USDC payments on Base.","url":"https://proof.arakelproof.space/v1/federal-award-search","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["q"],"properties":{"q":{"type":"string","description":"USAspending federal award search by recipient or company name with signed official award evidence."},"to":{"type":"string","format":"date-time","description":"Optional UTC end. Defaults to now."},"from":{"type":"string","format":"date-time","description":"Optional UTC start. Defaults to the last 365 days."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"result":"OBSERVED|NOT_OBSERVED|INCONCLUSIVE","schema":"arakel.machine-evidence.v2","source":{"id":"usaspending"},"evidence":[{}],"signature":{"alg":"Ed25519"},"observed_count":1}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YoCHq0Udel_s84IftRblO","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Searches official federal award databases (USASpending) and returns cryptographically signed machine-evidence proofs indicating whether a named entity or award was OBSERVED, NOT_OBSERVED, or INCONCLUSIVE.","exampleAgentPrompt":"Search USASpending records for any federal awards linked to 'Meridian Defense Solutions LLC' and give me a signed machine-evidence proof — I need to know if they show up as OBSERVED or NOT_OBSERVED in the federal award database.","exampleUseCases":[{"title":"Vendor due diligence before contracting","prompt":"Before we sign with Apex Infrastructure Group, can you pull a signed federal award proof from USASpending showing whether they've ever received government contracts? I need OBSERVED or NOT_OBSERVED evidence I can attach to our compliance file."},{"title":"Nonprofit grant history verification","prompt":"Can you check whether 'Renewal Community Foundation' appears as a recipient in federal award records and get me a cryptographically signed result — our board needs verifiable evidence of their government funding history."},{"title":"Counterparty cleared of federal ties","prompt":"I need a NOT_OBSERVED proof from federal award databases for 'Stonegate Analytics Inc' — we need documented evidence they have no federal contracts or grants on record for our investor disclosure."}],"resultDescription":"A JSON object conforming to arakel.machine-evidence.v2 schema, containing: a top-level 'result' field (OBSERVED, NOT_OBSERVED, or INCONCLUSIVE), the data source ID (usaspending), an array of evidence records supporting the result, an observed_count integer, and an Ed25519 cryptographic signature over the response for tamper-evident verification.","failureModes":["Entity name ambiguity may yield INCONCLUSIVE result when multiple matches exist","NOT_OBSERVED result does not guarantee absence — only absence from indexed official sources","USASpending upstream outage may cause service degradation or error","Malformed query parameters return validation errors before charge","Signature verification failure if client Ed25519 public key mismatch"],"whenToPreferThis":"Use this endpoint when you need a cryptographically signed, machine-verifiable proof of whether an entity appears in US federal award records — especially for compliance documentation, counterparty due diligence, or audit trails where a plain web search is insufficient. Prefer this over manual USASpending searches when you need a structured, signed evidence artifact rather than a human-readable page. Best suited for automated workflows requiring tamper-evident attestations at scale.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:42:11.839Z","isFirstParty":false}