{"uid":"cap_zmVAsIOWTP5mewMxu1RDV","slug":"fastapi-online-exchange-rates-lookup-d7fd6cc5","name":"fastapi.online — Exchange Rates Lookup","description":"Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.","url":"https://api.fastapi.online/exchange-rates?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":[],"properties":{}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0005","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":"$0.0005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_IDBNxA2JhdXCw_f2JA7ki","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current foreign exchange rates for currency conversion calculations","exampleAgentPrompt":"What's the current exchange rate from USD to EUR right now? I need it for a currency conversion calculation.","exampleUseCases":[{"title":"International invoice currency conversion","prompt":"I need to convert a client invoice amount from GBP to USD — can you get me the current exchange rate between those two currencies?"},{"title":"Travel budget planning in foreign currency","prompt":"I'm planning a trip to Japan and want to know the current USD to JPY exchange rate so I can figure out how much yen I'll need."},{"title":"Crypto or fintech payment settlement","prompt":"Before I process this international payment, can you pull the latest EUR to USDC exchange rate so I can calculate the correct amount to send?"}],"resultDescription":"Returns current exchange rate data including the rate between specified currency pairs, enabling downstream conversion calculations or financial analysis.","failureModes":["Unsupported currency pair returns an error or empty result","Network timeout or service unavailability returns HTTP error","Invalid or malformed body parameters return validation errors","Rate data may be delayed or stale depending on provider refresh interval"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call exchange rate lookup without signing up for a dedicated forex API. Ideal for lightweight agents that occasionally need currency conversion data and want to pay fractions of a cent in crypto rather than maintain a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T00:34:07.368Z","isFirstParty":false,"canonicalSlug":"fastapi-online-exchange-rates-lookup-d7fd6cc5"}