{"slug":"agent402-tools-api-seller-payability-7eef0f","title":"Buy one call from an x402 seller endpoint right now and report exactly what happ","host":"agent402.tools","method":"POST","resource":"https://agent402.tools/api/seller-payability","category":"market","description":"Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches the token it names (the defect that silently makes a whole catalog unpayable), whet","price_listed":0.1,"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":5,"reported_payers_30d":4,"networks":["eip155:10","eip155:1329","eip155:137","eip155:143","eip155:42161","eip155:42220","eip155:43114","eip155:4663","eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"body":{"text":"hello"},"method":"POST","url":"https://agent402.tools/api/hash"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"body":{"description":"Optional JSON body the seller's route expects (POST only)","type":"object"},"maxUsd":{"description":"Most to spend on the seller's own price, default 0.01, capped at 0.02","type":"number"},"method":{"description":"GET or POST (default POST) - never a verb that could mutate the seller","type":"string"},"url":{"description":"The seller endpoint to check (https), e.g. https://api.example.com/tools/summarize","type":"string"}},"required":["url"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"challenge":{"type":"object"},"checkedAt":{"type":"string"},"domainFindings":{"type":"array"},"flags":{"type":"array"},"method":{"type":"string"},"payable":{"type":"boolean"},"payment":{"type":"object"},"responseSlice":{"type":"string"},"unpaidCall":{"type":"object"},"url":{"type":"string"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches the token it names (the defect that silently makes a whole catalog unpayable), whether a stock client's signed payment was accepted, the settlement receipt and transaction, a slice of the response body, and the time each leg took. Ends in plain-English flags, never a score.","last_updated":"2026-09-20T14:55:37.958Z","schemes":["exact"]}