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FX Currency Converter (ECB Rates, Any Base)
x402
FX Currency Converter (ECB Rates, Any Base) is a paid API for AI agents from pay.brianbooms.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).
Converts a monetary amount between any two currencies using ECB reference rates, with no base-currency restriction and honest as_of timestamps.
Price / call$0.01
Success—
StatusUnknown
How this service works
Use when an agent needs a fiat conversion with any base currency — Fixer and OXR lock the base on free tiers; this one doesn't. ECB reference rates, honest as_of timestamps, no subscription. Pass from/to codes and amount. Use permitted: build it into your products and services, paid or free. Raw redistribution of the feed itself is prohibited.
Output
Returns the converted monetary amount, the exchange rate applied, and an as_of timestamp indicating when the ECB reference rate was last updated. The data is resaleable by the caller.
Example use cases
Cross-currency invoice calculation
“I need to invoice a client in Japan for work priced at 5000 EUR — can you convert that to JPY using today's ECB rate so I know what amount to put on the invoice?”
Travel budget estimation
“I'm heading to Brazil next month and have a budget of 2000 GBP — how much is that in Brazilian real right now?”
Multi-currency portfolio snapshot
“I hold 10000 CHF in savings — what's that worth in USD today based on ECB reference rates?”
Technical details
Endpoint
GEThttps://pay.brianbooms.com/api/v1/data/fx-convert?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to convert between any pair of currencies without being locked to a single base currency (a restriction imposed by Fixer and Open Exchange Rates on free tiers). It is ideal for agents that need flexible, any-base FX conversion backed by ECB reference rates at a low per-call cost with no subscription required.
Side effects
- Invalid or unsupported 3-letter currency code returns an error
- ECB reference rates are updated once daily so intraday precision is limited
- Non-numeric amount string may cause a parsing error
- Rate unavailable for exotic currency pairs not covered by ECB
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | 3-letter code. Example: JPY |
| from | string | 3-letter code, any base. Example: EUR |
| amount | string | Amount to convert. Example: 100 |
Tags
x402
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