{"uid":"cap_JowccCvVx1LPoVhhVYNYO","slug":"claim-grounding-pro-deep-research-0ae3eccc","name":"Claim Grounding Pro Deep Research","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 Every checked claim returns verdict: supported | contradicted | outdated | mixed | insufficient_evidence, plus status_detail and legacy_verdict (pre-1.2.0 value: supported | contradicted | not_found |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/pro?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":15},"next_actions":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"15","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":"$15/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"15","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"15","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_I5vhZ2A3TeFKIiUnHI1nY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"15","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 authoritative sources (Wikipedia, Wikidata, Google News, Europe PMC, FRED, SEC EDGAR) and returns a structured verdict per claim","exampleAgentPrompt":"Can you fact-check this claim for me: 'The Federal Reserve raised interest rates seven times in 2022' — run it through deep research grounding and tell me if it's supported, contradicted, or outdated based on FRED and news sources?","exampleUseCases":[{"title":"Grounding AI-generated medical summaries","prompt":"Before I send this patient FAQ to the clinic, verify the claim 'Metformin reduces cardiovascular risk in type 2 diabetics' against PubMed and Wikipedia — is it supported, contradicted, or is the evidence mixed?"},{"title":"Validating financial assertions in reports","prompt":"I'm reviewing an investment memo that says 'US CPI peaked at 9.1% in June 2022.' Can you fact-check that claim against FRED and tell me the verdict with supporting detail?"},{"title":"Checking news-based claims before publishing","prompt":"Our AI wrote that 'the EU passed the AI Act in March 2024.' Before we publish, can you ground that claim against Google News and Wikipedia and tell me if it's accurate or outdated?"}],"resultDescription":"An async job object with a job_id and a polling URL for the full result. The receipt includes each parsed claim with its claim_id and grounding_required flag, priced_usd ($15), and created_at timestamp. When polled, each claim resolves to a verdict (supported, contradicted, outdated, mixed, or insufficient_evidence), a status_detail explanation, and a legacy_verdict for backward compatibility.","failureModes":["Returns 400 if confirmed: true is missing from the request body — nothing is charged","Insufficient evidence verdict when no authoritative source addresses the claim","Outdated verdict if claim was once true but sources reflect changed facts","Mixed verdict when sources conflict with each other","Polling may be needed if status is 'queued' — results are not always synchronous","Malformed or ambiguous claim text may produce low-confidence or insufficient_evidence results"],"whenToPreferThis":"Choose this endpoint when an AI agent needs authoritative, multi-source fact verification covering biomedical (PubMed), financial (FRED, SEC EDGAR), encyclopedic (Wikipedia, Wikidata), and news (Google News) domains in a single call. It is especially valuable for grounding LLM-generated text before publication, auditing research summaries, or flagging hallucinations. Prefer it over generic web search when you need a structured, machine-readable verdict with source provenance rather than raw search results.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T06:37:34.907Z","isFirstParty":false,"canonicalSlug":"claim-grounding-pro-deep-research-0ae3eccc"}