{"uid":"cap_puFGQJQoFM-eFshaPeMiK","slug":"exchange-rate-history-between-two-dates-26caf355","name":"Exchange-Rate History Between Two Dates","description":"Exchange-rate history between two dates — Genesis402 / UnyKorn Operator Network","url":"https://twin.unykorn.org/records/fx-history?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"params":{"type":"object","properties":{"to":{"type":"string","description":"required"},"end":{"type":"string","description":"required YYYY-MM-DD"},"from":{"type":"string","description":"required"},"start":{"type":"string","description":"required YYYY-MM-DD"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"type":"fx-history","receipt":{"tx_hash":"0x<64hex>","amount_usd":0.002,"receipt_id":"g402-<16hex>"},"sources":[{"ok":true,"name":"<source>"}],"limitations":"<text>","generated_at":"<iso time>","evidence_hash":"sha256:<64hex>"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_IcsJUKltjW5hpoPXb3_GK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns historical foreign exchange rates for a currency pair over a specified date range","exampleAgentPrompt":"Can you pull the historical exchange rates from USD to EUR between January 1, 2024 and March 31, 2024?","exampleUseCases":[{"title":"Quarterly finance report reconciliation","prompt":"I need the historical exchange rates from GBP to USD for the entire fourth quarter of 2023 — October 1 through December 31 — so I can reconcile our overseas revenue figures."},{"title":"Travel budget planning analysis","prompt":"What were the exchange rates from USD to JPY between March 1, 2025 and March 15, 2025? I'm trying to understand how much my Japan trip actually cost me day by day."},{"title":"Currency trend analysis for investment","prompt":"Can you fetch the EUR to CHF exchange rate history from January 1, 2024 to June 30, 2024 so I can see how the Swiss franc trended against the euro in the first half of last year?"}],"resultDescription":"Returns a time-series of exchange rates for the specified currency pair (from/to) across each day or period within the given start and end date range, enabling historical analysis, trend review, or financial reconciliation.","failureModes":["Invalid or unsupported currency code returns an error","Start date after end date returns a validation error","Date range exceeding supported history window may return partial or empty results","Malformed date format (not YYYY-MM-DD) causes a parse error","Very large date ranges may return truncated data or timeout"],"whenToPreferThis":"Choose this endpoint when you need historical FX rate data across a date range rather than a live or single-point rate. It is well-suited for financial reporting, budget reconciliation, trend analysis, or any workflow that needs day-by-day or period-by-period exchange rate history between two specific currencies.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T00:47:52.017Z","isFirstParty":false,"canonicalSlug":"exchange-rate-history-between-two-dates-26caf355"}