{"slug":"agent-tools-jbarkules-workers-dev-v1-x402-check-8bcc79","title":"x402 readiness check for any paid API URL","host":"agent-tools.jbarkules.workers.dev","method":"GET","resource":"https://agent-tools.jbarkules.workers.dev/v1/x402/check","category":"market","description":"x402 readiness check for any paid API URL: probes it without paying and reports whether it returns a valid 402, where the requirements are (header or body, v1 or v2), network, asset, price in USD, payTo (with EIP-55 checksum check), EIP-712 token domain, timeout, resource URL and Bazaar discovery. R","price_listed":0.003,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"url":"https://agent-tools.jbarkules.workers.dev/v1/fx/rates"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"method":{"description":"Optional. Default tries GET, then POST if GET returns 404 or 405","enum":["GET","POST"],"type":"string"},"url":{"description":"Public http(s) URL of the paid endpoint to probe","type":"string"}},"required":["url"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"x402 readiness check for any paid API URL: probes it without paying and reports whether it returns a valid 402, where the requirements are (header or body, v1 or v2), network, asset, price in USD, payTo (with EIP-55 checksum check), EIP-712 token domain, timeout, resource URL and Bazaar discovery. Returns ready or needs_fixes with a 0-100 score and a list of specific issues. Use before you list an endpoint or let an agent pay it. Never sends a payment.","last_updated":"2026-10-25T12:48:42.352Z","schemes":["exact"]}