Currency conversion

GET https://api.api.sh/fx/v1/convert
1 credit / call public data try it in the playground →

Converts an amount between two currencies at the latest or a past day's rate: result, rate, inverse rate, the rate date and each currency's source (ECB reference rates; other currencies from the National Bank of Poland's weekly table).

Every response includes credits_used: the credits this call cost.

Parameters

nametypedescription
fromrequired string Currency to convert from (ISO code). Example: USD
torequired string Currency to convert to (ISO code). Example: EUR
amount number Amount (default 1). Example: 100
date string Date (YYYY-MM-DD, default latest).
sources all | ecb all (default: ECB currencies plus ~115 more from the National Bank of Poland's weekly table) or ecb (ECB reference currencies only).

Every endpoint also takes fresh, raw, fields (see lean responses and caching).

Example

curl "https://api.api.sh/fx/v1/convert?from=USD&to=EUR" \
  -H "x-api-key: $APISH_KEY"

Response

A JSON object with the fields described above, plus raw (the source's own data), cached, fetched_at and credits_used. Errors return {"success": false, "error": "…"} with the HTTP status (see errors). A lookup that ran but found nothing (404) costs the price above; refused calls and errors on our side are free (what's charged).

The fastest way to see the full response is the playground: it runs this endpoint with your account and shows the exact JSON.