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FintechToolkit

The AI- and developer-first directory of fintech infrastructure tools. Curated APIs, data sources, and open-source projects for builders shipping payments, banking, and beyond.

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  3. Open Exchange Rates
Open Exchange Rates logo

Open Exchange Rates

Reliable, up-to-date currency data and exchange rates API.

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Visit website openexchangerates.org

Overview


Open Exchange Rates serves current and historical foreign exchange rates for around 200 currencies over a JSON API.

Rates are aggregated market mid-rates intended for display, conversion, and reporting rather than for settling trades. Endpoints cover latest rates, a specific historical date, and time series. Update frequency depends on the plan, ranging from hourly to more frequent.

Common use cases


  • Convert prices into a user's local currency
  • Show historical FX rates on a reporting dashboard
  • Normalise multi-currency revenue for accounting

Key features


  • Real-time and historical exchange rates for 200+ currencies
  • Time-series and date-based historical rate endpoints
  • Strong uptime track record, with enterprise SLA available on request
  • Enterprise-grade security with encrypted HTTPS API access
  • Simple REST API with JSON responses
  • Flexible pricing with a generous free tier
  • Currency conversion endpoints

Sources and evidence


FintechToolkit records the source behind core directory claims. This profile’s sources were last captured on 1 August 2026. Validate time-sensitive commercial, regulatory, and availability details directly with the provider.

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    Integration

    Protocols
    REST
    Authentication
    App ID
    Official SDKs
    None published
    Sandbox
    Not listed
    Documentation
    Read the docs

    Details

    Product types

    API

    Geographic coverage

    Global

    Pricing model

    Free tier

    Categories

    Financial Data & Market Data

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