{"uid":"cap_J3-KVw_pe5bS_j3htOJ7W","slug":"factstamp-dated-claim-verifier-7ad7db0a","name":"FactStamp Dated Claim Verifier","description":"Check a dated figure you are about to act on against the publisher's own series, and receive verified, stale, contradicted or unknown with the as-of date. Call it before committing a number to a page, deck, model or decision. Coverage today is Australian primary sources; anything outside coverage returns unknown rather than a guess.","url":"https://factstamp.agentrails.workers.dev/check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input","output"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"body":{"type":"object"},"type":{"const":"http"},"method":{"const":"POST"},"bodyType":{"const":"application/json"}},"additionalProperties":true},"output":{"type":"object","required":["type","example"],"properties":{"type":{"const":"json"},"example":{"type":"object"}},"additionalProperties":true}},"additionalProperties":false},"responseSchema":{"type":"json","example":{"as_of":"2026-08-01","claim":"The RBA cash rate is 4.35% as at August 2026","verdict":"contradicted","publisher":"Reserve Bank of Australia","series_id":"rate.rba_cash_target"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_iyqjwBc2-If8tETTbh_TQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks a specific dated numeric or factual claim against Australian primary-source data series and returns a verdict of verified, stale, contradicted, or unknown with an as-of date.","exampleAgentPrompt":"Before I put this in the slide deck, can you check whether 'The RBA cash rate is 4.35% as at August 2026' is still accurate according to the Reserve Bank of Australia's own published series?","exampleUseCases":[{"title":"Pre-publication economic stat check","prompt":"I'm about to publish a report that says Australia's unemployment rate was 3.9% as of March 2025 — can you verify that figure against the ABS's official series before we go live?"},{"title":"Financial model data validation","prompt":"We're building a DCF model and need to confirm whether the RBA cash rate figure we're using, 4.10% as of July 2025, is verified, stale, or contradicted by the Reserve Bank's own data."},{"title":"Policy brief fact-checking","prompt":"Before my team submits this policy brief, check whether our claim that Australia's CPI was 3.4% year-on-year as of Q1 2025 holds up against the official ABS series."}],"resultDescription":"A JSON object containing the verdict (one of: verified, stale, contradicted, or unknown), the as-of date for the data, the publisher name, the matched series ID, and the original claim string submitted. Returns 'unknown' rather than guessing when the claim falls outside current Australian primary-source coverage.","failureModes":["Claim outside Australian primary-source coverage returns verdict 'unknown' rather than an error","Unrecognised or ambiguous series returns unknown verdict","Malformed request body returns HTTP 400","Payment not processed or insufficient USDC balance returns HTTP 402","Service unavailable returns HTTP 503"],"whenToPreferThis":"Choose this endpoint when you need to verify a specific dated numeric or statistical claim against Australian government or authoritative primary-source series — particularly for economic indicators, central bank rates, or ABS statistics — before committing that figure to a document, model, or decision. It is purpose-built for single-claim validation with a clear verdict signal rather than general web search or broad fact-checking.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T06:42:26.802Z","isFirstParty":false,"canonicalSlug":"factstamp-dated-claim-verifier-7ad7db0a"}