{"x402Version":2,"network":"eip155:8453","asset":"USDC","name":"Claim Grounding","version":"1.4.7","scheme":"exact","assetAddress":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","facilitator":{"name":"Coinbase CDP","url":"https://api.cdp.coinbase.com/platform/v2/x402"},"payTo":"0x485FfC037f02dDDc154A454a9cA89C4B1b29e25b","resources":[{"method":"POST","path":"/v1/extract_claims","url":"https://claim-grounding.prospectintel.workers.dev/v1/extract_claims","price":"$0.05","amount":"50000","description":"Extract claims. Splits text into atomic, checkable claims with character spans, grounding_required, claim_type (number|date|quantity|quote|named_entity_fact|comparison|opinion|prediction|other) and check_worthiness (high|medium|low). Strips hedges, resolves pronouns across sentences, and splits compound sentences. $0.05 USDC.","mimeType":"application/json"},{"method":"POST","path":"/v1/verify_claim","url":"https://claim-grounding.prospectintel.workers.dev/v1/verify_claim","price":"$1.00","amount":"1000000","description":"Verify claim. Checks one factual claim against public sources (Wikipedia) and returns a verdict (supported, contradicted, outdated, mixed or insufficient_evidence) with confidence, a short reason, the quote and source URL, and a receipt. $1.00 USDC.","mimeType":"application/json"},{"method":"POST","path":"/v1/check_answer","url":"https://claim-grounding.prospectintel.workers.dev/v1/check_answer","price":"$1.00","amount":"1000000","description":"Check answer. Splits an AI answer into claims and checks each against Wikipedia, Wikidata and (for current claims) news. Returns per-claim verdict, confidence, quote, source URL and sentence, a source-quoted suggested_correction for wrong claims, and an answer summary with problem_sentences. $1.00 USDC.","mimeType":"application/json"},{"method":"POST","path":"/v1/deep_verify","url":"https://claim-grounding.prospectintel.workers.dev/v1/deep_verify","price":"$0.75","amount":"750000","description":"Deep verify. Checks a claim against Wikipedia, Google News titles, Europe PMC reviews and trials (health and science claims), FRED data (US economic indicators), Wikidata structured facts (dates, quantities, offices held) and SEC EDGAR filings (US public companies: financials, listing status, former names), and flags a contradiction when sources disagree. Async: returns a job_id; poll GET /v1/jobs/{id} (free) for verdict, evidence for and against, citations and receipt. $0.75 USDC.","mimeType":"application/json"},{"method":"POST","path":"/v1/deep_research/lite","url":"https://claim-grounding.prospectintel.workers.dev/v1/deep_research/lite","price":"$5.00","amount":"5000000","description":"Deep Research Lite. Re-researches unsupported claims across public sources and returns a receipted result. Requires confirmed: true in the body (otherwise 400, not charged). Async: poll GET /v1/jobs/{id}. $5.00 USDC.","mimeType":"application/json","requires_confirmation":true},{"method":"POST","path":"/v1/deep_research","url":"https://claim-grounding.prospectintel.workers.dev/v1/deep_research","price":"$8.00","amount":"8000000","description":"Deep Research Core. Re-researches unsupported claims across public sources and returns per-claim verdicts, evidence URLs and a receipt. Requires confirmed: true in the body (otherwise 400, not charged). Async: poll GET /v1/jobs/{id}. $8.00 USDC.","mimeType":"application/json","requires_confirmation":true},{"method":"POST","path":"/v1/deep_research/pro","url":"https://claim-grounding.prospectintel.workers.dev/v1/deep_research/pro","price":"$15.00","amount":"15000000","description":"Deep Research Pro. Highest-budget re-research of unsupported claims across public sources, with per-claim verdicts, evidence URLs and a receipt. Requires confirmed: true in the body (otherwise 400, not charged). Async: poll GET /v1/jobs/{id}. $15.00 USDC.","mimeType":"application/json","requires_confirmation":true}]}