Providers

Rates are blended across 84 central bank data sources by default. You can inspect them or pin to just one.

List all data sources

GET /v2/providers

curl https://api.currency.uwuapps.org/v2/providers

Pin to one provider

Every rates endpoint accepts providers to use official reference rates from a single source instead of the blended default, e.g. the ECB:

curl https://api.currency.uwuapps.org/v2/rates?providers=ECB

See which providers contributed

curl https://api.currency.uwuapps.org/v2/rates?expand=providers

Pegged-currency rows omit the providers field in an expanded response, since those rates come from the peg rather than provider data.

Provider quirks

84 central bank adapters are pulled on a cron loop. Occasional single-provider errors are normal, since the scheduler catches and logs them per-adapter without affecting the others. This is only worth investigating if the same error repeats every cycle for a currency you rely on, or several providers fail at once. A handful of providers (BAM, BANXICO, BCCH, BOT, FRED, TCMB) accept an optional API key upstream and may behave inconsistently without one configured; see the Frankfurter deploy guide for details.