ExchangeRate-API Open Access endpoint
ExchangeRate-API Open Access endpoint
ExchangeRate-API's keyless open-access endpoint (open.er-api.com) returns the latest daily exchange rates from a chosen base currency as JSON. The docs say: "This open access API is subject to our Terms and requires attribution."
Required Attribution:
Required (open access endpoint).
Coverage
Latest exchange rates from a chosen base currency, JSON, refreshed once a day. No history on the open endpoint; historical data is a paid feature. Currency coverage count: Not stated.
Verdict
Keyless daily currency exchange rates from a chosen base currency, JSON, refreshed once a day: "The data only refreshes once every 24 hours anyway." WARNING: "This open access API is subject to our Terms and requires attribution. You're welcome to cache the data we respond with and to use it for either personal or commercial currency conversion purposes. You are, however, not allowed to re-distribute it." Exceeding the limit returns 429s: "Rate limited IP's will receive HTTP code 429 responses. After 20 minutes the rate limit will finish and new requests will be allowed through." Numeric request limit is Not stated. A paid Pro plan ("Only $10/mo!") is also offered. Signal Lab links only.
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