{"uid":"cap_wcVBzy_u0bzF22F0P62n5","slug":"agent402-tools-x402-quote-probe-6dd08f9c","name":"agent402.tools X402 Quote Probe","description":"Probe any URL and decode its HTTP 402 payment requirements (price, asset, network, pay-to) into clean JSON - what an agent needs to decide whether/how to pay. Read-only; does not pay. ?url=https://api.example.com/paid&method=GET","url":"https://agent402.tools/api/x402-quote","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"URL of the paid resource to probe"},"method":{"type":"string","description":"HTTP method to probe with (default GET)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"url":{"type":"string"},"status":{"type":"integer"},"accepts":{"type":"array","items":{"type":"object","properties":{"asset":{"type":"string"},"payTo":{"type":"string"},"scheme":{"type":"string"},"network":{"type":"string"},"maxAmountRequired":{"type":"string"}}}},"paymentRequired":{"type":"boolean"}}}}}}},"responseSchema":{"type":"json","example":{"url":"https://api.example.com/paid","status":402,"accepts":[{"asset":"USDC","payTo":"0x…","scheme":"exact","network":"base","maxAmountRequired":"1000"}],"paymentRequired":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_AKHWreM1re-u4YJwvHYEB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Probes any URL and decodes its HTTP 402 payment requirements into structured JSON, returning price, asset, network, and pay-to address so an agent can decide whether and how to pay.","exampleAgentPrompt":"Before calling it, can you check what the payment requirements are for https://api.example.com/paid — how much it costs, what asset and network it wants, and where to send payment?","exampleUseCases":null,"resultDescription":"A clean JSON object containing the decoded HTTP 402 payment requirements of the probed URL: price amount, payment asset (e.g. USDC), blockchain network, pay-to wallet address, and any other x402 payment fields — everything an agent needs to evaluate whether and how to pay, without actually making a payment.","failureModes":["Target URL does not return a 402 status — no payment requirements to decode","Target URL is unreachable or times out","Malformed or non-x402 402 response — cannot parse payment requirements","Missing required 'url' query parameter — returns validation error","Target URL uses an unrecognized payment scheme incompatible with x402"],"whenToPreferThis":"Use this endpoint when an agent encounters an HTTP 402 response and needs to understand the payment terms before deciding to pay. Ideal for pre-flight checks before committing to a payment, budget validation, or discovering payment asset/network requirements for any x402-compliant resource. Choose this over generic HTTP inspection tools because it specifically decodes x402 payment semantics into structured, agent-actionable JSON.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:55:08.228Z","isFirstParty":false}