{"uid":"cap_Q5QScXGR1yuywvHZm1x6y","slug":"clonecho-builda-company-fx-historical-rates-ada2e48e","name":"clonecho.builda.company FX Historical Rates","description":"MARKETS: foreign-exchange rates for a base currency on a specific past date (?date=2020-01-02&base=USD&symbols=EUR,GBP). ECB-sourced via Frankfurter. Returns JSON.","url":"https://clonecho.builda.company/x402/fx-historical","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_qWbij55Yocc3J_sy09joA","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns ECB-sourced historical foreign-exchange rates for a given base currency and date, optionally filtered to specific target currencies.","exampleAgentPrompt":"What were the EUR and GBP exchange rates against USD on January 2, 2020? I need the ECB official historical rates for that specific date.","exampleUseCases":[{"title":"Reconcile multi-currency invoices with historical rates","prompt":"I need to reconcile invoices from last March that were in EUR and GBP. Can you pull the official ECB exchange rates for those currencies against USD on the invoice date? It's important that these are the actual historical rates from that specific day for accounting compliance."},{"title":"Backtest currency conversion for portfolio analysis","prompt":"I'm analyzing how our investment portfolio would have performed if we'd converted to different currencies. Pull the historical exchange rates for USD against EUR, GBP, JPY, and CAD for each quarter throughout 2021 so I can calculate what our returns would have been in each currency."},{"title":"Calculate reimbursement costs for international business travel","prompt":"One of our employees traveled to multiple countries last September and submitted expense reports in local currencies. I need the official ECB historical rates for EUR, GBP, and CHF against USD for September 15th so I can convert their expenses accurately and reimburse them at the proper rate."}],"resultDescription":"A JSON object containing the historical exchange rates for the requested base currency on the specified date, with rate values for each requested target currency symbol, sourced from the European Central Bank via Frankfurter.","failureModes":["Invalid date format returns an error (must be YYYY-MM-DD)","Future dates or dates before ECB data availability return no data or error","Unsupported currency symbols return an error or empty rates","Weekends and ECB holidays may have no published rates","Malformed query parameters result in a 400-level error"],"whenToPreferThis":"Use this endpoint when you need official, ECB-sourced historical forex rates for a specific past date — ideal for invoice reconciliation, accounting, historical financial analysis, or backtesting currency conversions. Prefer this over real-time FX endpoints when the date is in the past and you need a trustworthy, standardized reference rate.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:11:08.357Z","isFirstParty":false}