{"uid":"cap_60htLTEB9A4mhJvCMncOS","slug":"gsc-marketplace-ai-x402-test-endpoint-c4b865e5","name":"gsc-marketplace.ai x402 Test Endpoint","description":"x402 test counterparty — prove your payment stack end to end with a real settlement on Base.","url":"https://gsc-marketplace.ai/api","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_bEu8wEDobCkqTL0Wf-ik9","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"A test counterparty endpoint that accepts real x402 micropayments on Base, enabling end-to-end payment stack validation with live USDC settlement.","exampleAgentPrompt":"Send a GET request to the gsc-marketplace.ai test endpoint to verify my x402 payment stack is working — I want to confirm a real USDC settlement goes through on Base.","exampleUseCases":[{"title":"Payment stack integration smoke test","prompt":"Run a live test against the gsc-marketplace.ai x402 counterparty using a GET request so I can confirm my payment middleware is actually settling USDC on Base before I ship."},{"title":"Agent micropayment capability verification","prompt":"I need to verify that my AI agent can autonomously pay for API calls — send a paid GET request to gsc-marketplace.ai using x402 and confirm the $0.005 USDC transaction went through."},{"title":"x402 protocol conformance check","prompt":"Can you hit the gsc-marketplace.ai test endpoint with a GET call to check that my x402 payment headers are properly formatted and accepted by a real counterparty on Base?"}],"resultDescription":"A response confirming that the x402 payment was accepted and settled on Base, along with any test payload returned — effectively proving the full payment round-trip worked correctly.","failureModes":["Insufficient USDC balance causes payment rejection and 402 response without settlement","Malformed x402 payment header results in rejection by the counterparty","Network issues on Base preventing on-chain settlement confirmation","Invalid HTTP method used (only GET, HEAD, DELETE are supported)","Payment facilitator unavailable, blocking settlement even if headers are correct"],"whenToPreferThis":"Choose this endpoint when you need a real, live counterparty to validate your x402 payment implementation end-to-end on Base with actual USDC settlement. It is purpose-built for payment stack testing and is ideal before integrating paid API calls into production agent workflows. Not suitable for production data retrieval or any functional business logic.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:30:22.458Z","isFirstParty":false}