{"uid":"cap_tJvTUPYQi-wNWlkfS2zro","slug":"certaindata-fx-rates-all-currencies-for-base-711e9073","name":"CertainData FX Rates – All Currencies for Base","description":"Mid-market reference rates for one base currency against all published currencies, from the European Central Bank.","url":"https://api.certaindata.ai/ca054d66abad4d6ea80ba43013b61743-cd/fx-rates/:base","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","pathParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object","required":["base"],"properties":{"base":{"type":"string","description":"Base currency as a 3-letter ISO code, e.g. EUR."}}},"queryParams":{"type":"object","properties":{"date":{"type":"string","description":"Optional. A specific date (YYYY-MM-DD) for a historical rate, e.g. 2026-01-01. Omit for the latest."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.007","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":"$0.007/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.007","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_K4Gv-RJ7MQ-qPCXPnGjab","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.007","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns mid-market ECB reference exchange rates for one base currency against all published currencies, with optional historical date lookup.","exampleAgentPrompt":"Give me all of today's mid-market ECB reference exchange rates with USD as the base currency.","exampleUseCases":null,"resultDescription":"A structured response listing mid-market exchange rates from the European Central Bank for the specified base currency against all published currency pairs, including the effective date of the rates. Optionally returns historical rates if a date parameter is provided.","failureModes":["Invalid or unsupported base currency ISO code returns an error or empty result","Future dates or dates before ECB publication history may return no data","Weekend or holiday dates may return the most recent available business day rates","Network or upstream ECB data outage may cause unavailability","Malformed date format (not YYYY-MM-DD) may result in an error"],"whenToPreferThis":"Use this endpoint when you need exchange rates for one base currency against ALL published currencies in a single call, rather than fetching individual currency pairs one at a time. Prefer this for building currency conversion tables, multi-currency financial dashboards, or broad FX exposure analysis. Use the sibling single-pair endpoint if you only need one specific quote currency.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:40:54.169Z","isFirstParty":false}