{"uid":"cap_sJAEbprnTgVe-X0RA3E-j","slug":"atms-treasury-x402-challenge-probe-48646fc6","name":"ATMS Treasury x402 Challenge Probe","description":"ATMS x402 challenge — crawler / probe endpoint (always 402, no side effects)","url":"https://api.atms.nathanlidurin.com/x402/challenge","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_E79Fw3stekV9izJgL6d9l","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a 402 Payment Required challenge response for testing x402 payment protocol flow; a crawler/probe endpoint with no functional side effects","exampleAgentPrompt":"Ping the ATMS Treasury x402 challenge endpoint with a GET request to trigger a 402 payment-required response and show me the challenge payload it returns.","exampleUseCases":null,"resultDescription":"A 402 Payment Required HTTP response containing an x402 challenge payload — typically including payment details, USDC amount, and challenge metadata needed to complete the payment flow. No resource is created or modified.","failureModes":["Always returns 402 by design — not an error, but the intended response","Network timeout if the host is unreachable","Unexpected 5xx if the server is misconfigured","No useful data payload beyond the challenge structure"],"whenToPreferThis":"Use this endpoint when you need to test or verify the x402 payment protocol challenge/response flow, confirm that a 402-gated endpoint is alive and returning valid challenge metadata, or crawl/probe x402-enabled APIs. This is not suitable for performing actual transactions or retrieving treasury data — it is purely a probe endpoint.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:38:25.725Z","isFirstParty":false}