x402 Catalog Drift Monitor

Expected input

{"type":"object","required":["service_url","expected_endpoint"],"properties":{"service_url":{"type":"string","format":"uri","maxLength":2048,"description":"Public HTTPS service URL used only as a sanitized label in v1."},"expected_endpoint":{"type":"string","maxLength":256,"description":"Root-relative endpoint path expected by the buyer agent."},"expected_method":{"type":"string","enum":["GET","POST"],"default":"POST"},"catalog_json":{"type":"object","additionalProperties":true},"openapi_json":{"type":"object","additionalProperties":true},"mcp_tool_name":{"type":"string","maxLength":120},"expected_tool_id":{"type":"string","maxLength":120},"expected_price":{"type":"string","pattern":"^[0-9]+(\\.[0-9]{1,6})?$"},"expected_currency":{"type":"string","maxLength":20},"expected_network":{"type":"string","maxLength":40},"expected_receiver":{"type":"string","maxLength":120},"payment_challenge_json":{"type":"object","additionalProperties":true}},"additionalProperties":false}

What it returns

{"type":"object","required":["product_family","endpoint","tool_id","version","request_id","x402_request_id","generated_at","decision","confidence","summary","checked_surfaces","mismatches","risk_flags","recommended_next_action","limitations"],"properties":{"product_family":{"const":"agent_expansion_v2_api"},"endpoint":{"const":"x402-catalog-drift-monitor"},"tool_id":{"const":"x402_catalog_drift_monitor"},"version":{"const":"v0.1"},"request_id":{"type":"string"},"x402_request_id":{"type":"string","description":"x402 route request ID used for Supabase x402_agent_requests ledger reconciliation when available."},"generated_at":{"type":"string","format":"date-time"},"decision":{"type":"string","enum":["consistent","minor_drift","major_drift","insufficient_evidence","unsafe_target"]},"confidence":{"type":"string","enum":["high","medium","low"]},"summary":{"type":"string"},"checked_surfaces":{"type":"array","items":{"type":"string"}},"mismatches":{"type":"array","items":{"type":"object","required":["field","severity","expected","observed","source"],"properties":{"field":{"type":"string"},"severity":{"type":"string","enum":["low","medium","high"]},"expected":{"type":["string","number","boolean","null"]},"observed":{"type":["string","number","boolean","null"]},"source":{"type":"string"},"explanation":{"type":"string"}},"additionalProperties":false}},"risk_flags":{"type":"array","items":{"type":"string"}},"recommended_next_action":{"type":"string"},"limitations":{"type":"array","items":{"type":"string"}},"metadata":{"type":"object","required":["paymentStatus"],"properties":{"paymentStatus":{"type":"string"}},"additionalProperties":false}},"additionalProperties":false}