{"uid":"cap_vqh-NFA30stN1G_7m6j6E","slug":"worlddata402-fx-timeseries-50c271a0","name":"WorldData402 FX Timeseries","description":"Global market, government and reference data for AI agents. Pay-per-call over x402 (USDC on Base mainnet).","url":"https://worlddata402.worlddata402.workers.dev/v1/fx/timeseries/%7Bbase%7D/%7Bquote%7D?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["to","from"],"properties":{"to":{"type":"string"},"from":{"type":"string"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/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_0un8z_lRJTjmjhACtcPX3","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","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 rate time series data for a given currency pair (base and quote currencies).","exampleAgentPrompt":"Can you pull the historical exchange rate time series for USD to EUR so I can see how the dollar has trended against the euro?","exampleUseCases":[{"title":"Portfolio currency exposure analysis","prompt":"Show me the historical EUR to USD exchange rate series so I can assess how currency moves have affected my European holdings over time."},{"title":"Travel budget planning with FX history","prompt":"Pull the historical GBP to JPY exchange rate data — I want to see how sterling has moved against the yen before I plan my Japan trip budget."},{"title":"FX trend research for fintech app","prompt":"Fetch the time series of USD to MXN exchange rates so our app can display historical peso performance to users sending money to Mexico."}],"resultDescription":"A time series of historical exchange rates for the specified base-to-quote currency pair, returned as a structured object with date-indexed rate values covering a historical window. Useful for charting, trend analysis, and financial modeling.","failureModes":["Invalid or unsupported currency code returns an error or empty result","Missing required 'from' or 'to' parameters causes a 400-level error","Payment failure via x402/USDC results in a 402 Payment Required response","Rate limiting or upstream data unavailability may return 5xx errors","Very exotic or illiquid currency pairs may have sparse or missing data"],"whenToPreferThis":"Choose this endpoint when you need historical FX rate time series data for any global currency pair, especially in agentic workflows requiring pay-per-call pricing via x402/USDC on Base mainnet. Prefer over general web scraping when you need structured, reliable historical forex data without building your own data pipeline.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T12:42:44.810Z","isFirstParty":false,"canonicalSlug":"worlddata402-fx-timeseries-50c271a0"}