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Datasheet: Currency API
Converting foreign currency by hand? One call returns amount, rate and rate timestamp. The Currency API converts amounts between currencies and returns all rates for a base currency.
The file is available in English and German; you download the version in the language of this page. Free, no registration.
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MoreWhat's inside
- Convert
- All rates for a base
- Rate timestamp as evidence
- One rate for list and conversion
- The visitor's local currency
- Validated currency codes
- Technical data
- In practice
- Frequently asked questions
Who it is for
Built for checkout, invoices and reports, via REST API, in the browser and through MCP.
Key facts
- Inputs: Amount, source and target currency as ISO 4217 codes, e.g. EUR, USD, GBP
- Output: converted, rate, rate_date and rate_datetime, plus a unique rate_snapshot_id
- Access: REST API with bearer token, Publishable Key in the browser, MCP
- Rate timestamp: Time of the rate set used in every response, latest timestamp via status
Questions and answers
Frequently asked questions about this download
How recent are the rates?
Every response states in rate_date and rate_datetime when the rate set it used was captured. GET /currency_exchange/status shows the latest timestamp of all rates in last_update.
Which currencies are available?
GET /currency_exchange/list returns all available ISO codes with their count. Retired codes such as HRK or LTL are rejected with INVALID_CURRENCY_CODE.
Does it work from Claude or ChatGPT?
Yes. po_currency_convert is available on /mcp, /claude, /cursor, /dms and /chatgpt, po_currency_rates_get on /mcp, /claude, /cursor and /dms.
How is it billed?
By usage. Current prices are on the pricing page, and you can see your usage under “API & Developer › API Usage”.
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