keyless open FX-rates endpoint

Name: keyless open FX-rates endpoint: one daily-refreshed JSON of ~161 currency rates vs a chosen base with mandatory 'Rates By Exchange Rate API' attribution link; keyed tiers drop attribution and add quota + 60-min/5-min refresh and 30+ years of historical rates
Creator: Er-api
License: ExchangeRate-API Terms of Use

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keyless open FX-rates endpoint: one daily-refreshed JSON of ~161 currency rates vs a chosen base with mandatory 'Rates By Exchange Rate API' attribution link; keyed tiers drop attribution and add quota + 60-min/5-min refresh and 30+ years of historical rates

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Coverage

Universe, instruments and categories.

Industry: Financial Exchanges & Data
Instruments: FX
Categories: currency exchange-rate API
Regions: Other

Dataset card

Type: not stated
Format: REST API (JSON) - a single keyless HTTPS GET per base currency returning one JSON document; no bulk file or warehouse delivery
Volume: 165 currencies across 200 countries (161 major currencies in the open-tier payload); over 30 years of historical exchange rate data; hundreds of millions of API requests served per month
Users: 100,000+ developers on the free API (vendor also claims 'hundreds of thousands of developers' overall)
History: 30 years
Update frequency: daily on the open/keyless tier (docs: 'Updates Once Per Day'; each JSON response carries time_next_update_utc, e.g. last update Wed, 23 Sep 2026 00:02:31 +0000, next update Thu, 24 Sep 2026 00:23:41 +0000); Pro tier 'Updates Every 60 Minutes'
Growth: not stated
Launched: not stated
Delivery: API
Entity mapping: not stated
Sample: Live sample endpoint
Point-in-time: not stated
Licence: ExchangeRate-API Terms of Use

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