{"uid":"cap_s_MyW9xKdSNAiriTjuhIK","slug":"basebuilder-crypto-exchange-rates-c32e7e07","name":"BaseBuilder Crypto Exchange Rates","description":"BaseBuilder Crypto API hub - 26 paid endpoints","url":"https://bb-crypto.vercel.app/api/exchange/rates","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.057811","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":"$0.057811/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.057811","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.057811","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wbmcMrYn__G8YfceKl8Bz","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.057811","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches current cryptocurrency exchange rates for one or more trading pairs","exampleAgentPrompt":"What are the current exchange rates for BTC/USD, ETH/USD, and SOL/USDC right now?","exampleUseCases":null,"resultDescription":"Returns current exchange rate data for the requested cryptocurrency pairs, including price values and likely timestamps for when the rates were fetched.","failureModes":["Invalid or unsupported trading pair returns an error","Network or upstream exchange data unavailable","Payment not processed results in 402 response","Malformed request body returns 400 bad request","Rate limit exceeded if too many requests made"],"whenToPreferThis":"Use this endpoint when you need real-time or near-real-time cryptocurrency exchange rates via a paid, x402-compatible API that accepts USDC micropayments. Suitable for agents operating on Base or other EVM chains that need programmatic crypto price lookups without managing a full exchange API key subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:42:20.104Z","isFirstParty":false}