{"uid":"cap_W01npzq7lsq0kVPO7O4vi","slug":"claim-grounding-deep-research-lite-8c3d1214","name":"Claim Grounding Deep Research Lite","description":"Pay-per-call claim checks for AI agents. Sources: Wikipedia, Wikidata, Google News, Europe PMC (PubMed), FRED and SEC EDGAR. USDC on Base via x402 (Coinbase CDP facilitator). No API key. Every checked claim returns verdict: supported | contradicted | outdated | mixed | insufficient_evidence, plus status_detail and legacy_verdict (pre-1.2.0 value: supported | contradicted | not_found | conflict).","url":"https://claim-grounding.prospectintel.workers.dev/v1/deep_research/lite?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string"},"claim":{"type":"object","properties":{"text":{"type":"string"}}},"answer":{"type":"string","description":"Text whose claims should be researched."},"claim_ids":{"type":"array","items":{"type":"string"}},"confirmed":{"const":true,"description":"Required. Without confirmed: true the call returns 400 and nothing is charged."}}},"responseSchema":{"type":"json","example":{"mode":"fast","poll":"GET /v1/jobs/job_8c1d2e3f4a5b6c7d (free)","claims":[],"job_id":"job_8c1d2e3f4a5b6c7d","status":"queued","receipt":{"claims":[{"text":"Paris is the capital of France","claim_id":"clm_3f9a1c2b4d5e6f70","grounding_required":true}],"job_id":"job_8c1d2e3f4a5b6c7d","created_at":"2026-10-10T12:00:00.000Z","priced_usd":5},"next_actions":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"5","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":"$5/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dHDUSPnSuUuEktT6xLO_P","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"5","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies factual claims in text against Wikipedia, Wikidata, Google News, Europe PMC, FRED, and SEC EDGAR, returning a structured verdict for each claim.","exampleAgentPrompt":"Fact-check this claim for me — 'Global CO2 emissions hit a record high in 2023' — using deep research sources including news and scientific databases, and tell me whether it's supported, contradicted, outdated, or mixed.","exampleUseCases":[{"title":"Hallucination check for AI-generated report","prompt":"I just got a research summary from another AI — can you verify the key claims in it? Specifically check: 'The Federal Reserve raised rates 7 times in 2022' and 'US inflation peaked at 9.1% in June 2022'. Tell me if each is supported, contradicted, or outdated."},{"title":"Medical claim verification for patient FAQ","prompt":"Our chatbot wrote this answer about statins: 'Statins reduce cardiovascular mortality by approximately 25% in high-risk patients.' Can you ground that claim against PubMed and scientific sources and tell me if it's supported or contradicted?"},{"title":"Financial fact-check before publishing","prompt":"Before we publish this newsletter, please verify this claim: 'US GDP grew at an annualized rate of 2.4% in Q2 2023.' Check it against FRED and SEC EDGAR sources and return a verdict with supporting detail."}],"resultDescription":"Returns a job ID and poll URL for async retrieval, along with a receipt listing each extracted claim with its claim_id, grounding requirement flag, creation timestamp, and price. Once complete, each claim receives a verdict (supported | contradicted | outdated | mixed | insufficient_evidence), a status_detail explanation, and a legacy_verdict for backward compatibility.","failureModes":["400 error if `confirmed: true` is not included in the request body — nothing is charged","Claim returns insufficient_evidence if no authoritative source addresses the topic","outdated verdict if sources exist but are superseded by more recent data","Job may remain in queued/processing state requiring polling of the job status endpoint","Rate limits or payment failures via x402/USDC on Base may block the call"],"whenToPreferThis":"Choose this endpoint when you need authoritative, multi-source fact verification for AI-generated content — especially when claims span scientific literature (PubMed), economic data (FRED), corporate disclosures (SEC EDGAR), encyclopedic knowledge (Wikipedia/Wikidata), or recent news (Google News). Prefer it over simpler search-based checks when you need a structured verdict with nuance (supported vs mixed vs outdated) rather than a raw search result. It is particularly valuable for detecting AI hallucinations in high-stakes domains like medicine, finance, and journalism.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T06:36:01.723Z","isFirstParty":false,"canonicalSlug":"claim-grounding-deep-research-lite-8c3d1214"}