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Foundry FX Rate
x402
Foundry FX Rate is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).
Converts currency amounts or lists exchange rates using European Central Bank data via the Frankfurter API.
Price / call$0.001
Success—
StatusUnknown
How this service works
Currency exchange rates from the European Central Bank: convert an amount or list rates. Input: '100 USD to EUR'.
Output
Returns a JSON object with the base currency, target currency rate(s), the converted amount (if an amount was specified), the date of the rate, and attribution to the European Central Bank via Frankfurter. Example: {base: 'USD', date: '2026-10-30', rates: {EUR: 89.51}, amount: 100, source: 'European Central Bank via Frankfurter'}.
Example use cases
Travel budget currency conversion
“I'm heading to Europe and want to know how much 2000 US dollars converts to in euros right now — can you pull the ECB rate and tell me the converted amount?”
Multi-currency rate listing
“Can you get me today's exchange rates from USD to EUR, GBP, and JPY all at once?”
Invoice amount conversion
“I need to send an invoice for 8500 British pounds — how much is that in Swiss francs at today's European Central Bank rate?”
Technical details
Endpoint
POSThttps://minty-sprout.onrender.com/v1/fx-rate?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need reliable, authoritative currency exchange rates sourced from the European Central Bank, especially for financial calculations, invoice conversion, or travel budgeting. It is well-suited for single-call conversions between two currencies or bulk rate lookups for a base currency against multiple targets. Choose this over generic forex APIs when ECB provenance and rate accuracy matter.
Side effects
- Unsupported or misspelled currency code returns an error or empty rates object
- Malformed input string (wrong format) may result in a parse error or unexpected output
- ECB does not publish rates on weekends or holidays — rate may reflect last business day
- Network timeout if the upstream Frankfurter API is unavailable
- Amount field missing when only listing rates will return rates without conversion
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | '<amount> <CUR> to <CUR>' or 'USD EUR,GBP' |
Output
Schema · Response
{
"type": "json",
"example": {
"base": "USD",
"date": "2026-10-30",
"rates": {
"EUR": 89.51
},
"amount": 100,
"source": "European Central Bank via Frankfurter"
}
}Tags
x402
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