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Suverse FX Timeseries (ECB Reference Rates via Frankfurter)
x402
Suverse FX Timeseries (ECB Reference Rates via Frankfurter) is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Returns daily ECB reference exchange rate time series between two currencies over a specified date range, powered by the Frankfurter API, with no API key required.
Price / call$0.003
Success—
StatusUnknown
How this service works
Daily ECB reference exchange rate time series between two currencies over a date range via Frankfurter, no key. For AI agents backtesting FX, computing volatility, and charting currency trends.
Output
A time series of daily ECB reference exchange rates for the requested currency pair over the specified date range, including dates and corresponding rate values, sourced from the Frankfurter API.
Example use cases
FX backtesting strategy validation
“Get me the daily ECB reference rates between GBP and USD from January 1, 2023 through December 31, 2023 — I need to backtest a currency trading strategy and want to see how the pair moved over the full year.”
Currency volatility computation
“Fetch the daily EUR to JPY exchange rates for the past 90 days using ECB reference data so I can calculate the annualized volatility of that currency pair.”
Financial reporting FX conversion
“I need historical ECB reference exchange rates between USD and CHF from April 1, 2024 to April 30, 2024 for our monthly financial report — give me the full daily series.”
Technical details
Endpoint
POSThttps://proxy.suverse.io/v1/data/suverse-fx-timeseriesWhen to prefer
Choose this endpoint when you need ECB official reference rate time series data for a currency pair over a date range without managing your own Frankfurter API integration or API keys. It is ideal for FX backtesting, volatility analysis, and charting historical currency trends when ECB reference rates are the authoritative source needed. Prefer this over direct Frankfurter calls when working in an x402 micropayment-enabled agent workflow.
Side effects
- Invalid or unsupported currency code — ECB only publishes rates for a limited set of currencies
- Date range out of ECB historical data bounds — data availability starts from 1999
- Start date after end date — malformed date range returns an error
- Weekend or holiday dates may have no rate entries — ECB does not publish rates on non-business days
- Malformed request body — missing required fields returns a 400-level error
- Payment failure — x402 payment not completed results in access denial
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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