{"release":"v1","network":"eip155:8453","chargeable":true,"request":{"product":"evidence-consensus","method":"POST","path":"/api/v1/evidence/consensus","content_type":"application/json","example_input":{"observations":[{"source":"source-a","value":100,"confidence":0.9},{"source":"source-b","value":102,"confidence":0.8}],"max_age_minutes":1440},"input_schema":{"type":"object","properties":{"observations":{"type":"array","minItems":2,"maxItems":50,"items":{"type":"object","properties":{"source":{"type":"string","minLength":1,"maxLength":160},"value":{"type":"number"},"confidence":{"type":"number","minimum":0,"maximum":1},"weight":{"type":"number","exclusiveMinimum":0},"observed_at":{"type":["string","null"],"format":"date-time"}},"required":["source","value"]}},"max_age_minutes":{"type":"integer","minimum":1,"maximum":525600}},"required":["observations"]},"free_quote":{"method":"POST","path":"/api/v1/quote","body":{"product_id":"evidence-consensus","input":{"observations":[{"source":"source-a","value":100,"confidence":0.9},{"source":"source-b","value":102,"confidence":0.8}],"max_age_minutes":1440}}},"docs":"/docs.md","openapi":"/openapi.json","output":{"example":{"source_count":2,"weighted_consensus":100.94,"agreement_score":96,"agreement":"strong","contradiction_detected":false,"observations":[]}},"success_semantics":{"http":"2xx","settlement_header":"PAYMENT-RESPONSE","note":"A successful paid call returns the product JSON and x402 settlement evidence."},"recommended_next":[{"step":"review_request","method":"GET","path":"/api/v1/request-guide?product_id=evidence-consensus","purpose":"Confirm method, schema, example input, output example and payment flow before spending."},{"step":"validate_free","method":"POST","path":"/api/v1/quote","body_example":{"product_id":"evidence-consensus","input":{"observations":[{"source":"source-a","value":100,"confidence":0.9},{"source":"source-b","value":102,"confidence":0.8}],"max_age_minutes":1440}},"purpose":"Validate product selection and input structure without initiating payment."},{"step":"request_unsigned","method":"POST","path":"/api/v1/evidence/consensus","content_type":"application/json","body_example":{"observations":[{"source":"source-a","value":100,"confidence":0.9},{"source":"source-b","value":102,"confidence":0.8}],"max_age_minutes":1440},"expect":"HTTP 402 with PAYMENT-REQUIRED"},{"step":"authorize_exact_requirement","when":"HTTP 402","instruction":"Use an x402-compatible buyer to authorize exactly the returned PAYMENT-REQUIRED requirement. Never send funds manually from documentation and never disclose a seed phrase or private key."},{"step":"retry_paid_request","method":"POST","path":"/api/v1/evidence/consensus","content_type":"application/json","body_example":{"observations":[{"source":"source-a","value":100,"confidence":0.9},{"source":"source-b","value":102,"confidence":0.8}],"max_age_minutes":1440},"required_header":"PAYMENT-SIGNATURE"},{"step":"accept_delivery","success_condition":"HTTP 2xx and PAYMENT-RESPONSE present","instruction":"Treat the purchase as complete only when the product response and settlement evidence are both returned."}]},"payment_flow":["Send the documented unsigned request.","Receive HTTP 402 with PAYMENT-REQUIRED.","Authorize the exact USDC requirement with an x402-compatible buyer.","Retry the same method/path/body with PAYMENT-SIGNATURE.","Treat the purchase as complete only after HTTP 2xx and PAYMENT-RESPONSE settlement proof."]}