{"uid":"cap_XXAwDKp9C6i9S8SOxcsCw","slug":"tarnak-x402-toolkit-service-discovery-api-81d63de0","name":"Tarnak x402 Toolkit — Service Discovery API","description":"Keyless pay-per-call APIs for AI agents on Base: token risk verdict, rug/honeypot report, gas estimate, URL-to-markdown and more. x402 v2, USDC, no API key or signup. 10 free verdicts per IP per day.","url":"https://api.capousd-student-tools.me/v1/services?utm_source=zero.xyz","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":{"limit":{"type":"integer","default":20,"maximum":100,"minimum":1},"category":{"type":"string","description":"e.g. compute, storage, data."},"max_price":{"type":"number","description":"Max USD price per call."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"count":1,"services":[{"url":"https://x-pay.example","slug":"x-pay","network":"base","category":"compute","price_usd":0.002}]}},"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_e1DyjUuzVxKtT_CqpxE5w","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":"Lists available pay-per-call x402 API services on the Tarnak platform, filterable by category and price","exampleAgentPrompt":"Show me all the available Tarnak x402 services in the 'data' category that cost less than $0.01 per call — I want to find a keyless API for token risk analysis.","exampleUseCases":[{"title":"Discover affordable DeFi analysis APIs","prompt":"List all Tarnak x402 services in the 'data' category that cost $0.005 or less per call so I can pick one for token risk checks."},{"title":"Find compute services for agent pipeline","prompt":"What compute-category APIs does the Tarnak x402 toolkit have available? Show me up to 50 results so I can pick one for my agent workflow."},{"title":"Browse all available x402 endpoints","prompt":"Can you pull a full list of all the keyless x402 services on Tarnak — I want to see everything available on Base, up to 100 results."}],"resultDescription":"Returns a JSON object with a count of matching services and an array of service descriptors, each including the service URL, slug identifier, network (e.g. 'base'), category label, and price in USD per call.","failureModes":["No services match filter criteria — returns empty services array with count 0","Invalid category string returns empty result set","max_price too low to match any services — returns empty list","limit out of range (below 1 or above 100) may return validation error","Service unavailable or host unreachable returns network error"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which Tarnak x402 API tools are available before calling one — especially useful for browsing by category (compute, storage, data) or filtering by max price. Prefer this over hardcoding individual endpoint URLs when building flexible agent pipelines that adapt to new services as they are added.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:34:18.695Z","isFirstParty":false,"canonicalSlug":"tarnak-x402-toolkit-service-discovery-api-81d63de0"}