{"uid":"cap_WxhLvGLAwG_IUtX754zSE","slug":"fastapi-online-fiat-exchange-rates-16e55e37","name":"fastapi.online Fiat Exchange Rates","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/fiat-rates?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"currency":{"type":"string"}}},"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_nHYm3s-fPOEbAtau4-L5b","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 fiat currency exchange rates for a given currency code","exampleAgentPrompt":"Can you look up the current fiat exchange rates for EUR using the fastapi.online rates endpoint?","exampleUseCases":[{"title":"Live forex rate for invoicing","prompt":"What is the current exchange rate for GBP so I can calculate how much to invoice my UK client in their local currency?"},{"title":"Multi-currency budget conversion","prompt":"Fetch the current fiat rates for JPY — I need to know today's rate to plan my travel budget for Japan."},{"title":"Crypto-to-fiat price reference","prompt":"Get me the current fiat exchange rate for USD so I can display the dollar equivalent of a USDC payment on my checkout page."}],"resultDescription":"A response containing current fiat exchange rate data for the specified currency, likely including rate values relative to a base currency such as USD or a set of cross-rates.","failureModes":["Unsupported or invalid currency code returns an error or empty result","Network timeout or service unavailability","Payment required (402) if no valid x402 payment or API key is provided","Malformed request body returns validation error"],"whenToPreferThis":"Choose this endpoint when you need a quick, per-call fiat exchange rate lookup without signing up for a traditional forex API, and you are already using the fastapi.online ecosystem or want to pay per call with crypto (USDC) via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:51:10.831Z","isFirstParty":false,"canonicalSlug":"fastapi-online-fiat-exchange-rates-16e55e37"}