{"uid":"cap_QFDk0JV1G7_F4KM8byG6W","slug":"basebuilder-sentiment-exchange-rate-api-1ee8f89a","name":"BaseBuilder Sentiment - Exchange Rate API","description":"BaseBuilder Sentiment API hub - 14 paid endpoints","url":"https://bb-sentiment.vercel.app/api/exchangerate-api","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.173987","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":"$0.173987/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.173987","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.173987","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kWsTPgxKShbQnOp_vEH6P","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.173987","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches current currency exchange rates via a paid x402 micropayment-gated endpoint hosted on the BaseBuilder Sentiment API hub","exampleAgentPrompt":"Can you look up the current exchange rate from USD to EUR using the BaseBuilder exchange rate API?","exampleUseCases":[{"title":"Live forex rate for travel planning","prompt":"What is the current exchange rate from US dollars to Japanese yen? I need to know how much my $500 will be worth before my trip."},{"title":"E-commerce currency conversion","prompt":"Fetch me the live exchange rate from EUR to GBP so I can display the correct converted price in pounds for my online store checkout."},{"title":"Financial dashboard data feed","prompt":"Get me the current exchange rate between USD and CAD so I can update the currency widget on my financial dashboard."}],"resultDescription":"Returns the current exchange rate for a given currency pair, typically including the base currency, target currency, and the numerical conversion rate, possibly with a timestamp indicating data freshness.","failureModes":["Missing or invalid currency codes result in an error response","Payment not attached or insufficient USDC balance triggers a 402 Payment Required response","Unsupported currency pair returns an error or empty result","Network or upstream provider outage may result in 503 or timeout","Malformed POST body causes a 400 Bad Request"],"whenToPreferThis":"Choose this endpoint when you need a quick, programmatic lookup of a live currency exchange rate and are operating in an x402 micropayment-enabled environment. It is suitable for lightweight, per-call usage where you do not want to manage a subscription to a dedicated forex data provider.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:37:22.164Z","isFirstParty":false}