Currencylayer

Currencylayer is a real-time and historical foreign exchange rate JSON API delivering bank-grade exchange rate data for 168 world currencies and precious metals, sourced from 15+ commercial-grade providers. The service is delivered through the APILayer marketplace under a freemium subscription model with refresh cadence ranging from hourly on Free up to 60 seconds on Enterprise tiers.

1 APIs 10 Features

Currency ExchangeForeign ExchangeFXForexConversionHistorical RatesTime FrameChange ReportPrecious MetalsAPILayerPublic APIs

APIs

Currencylayer API

The Currencylayer REST API exposes six operations covering currency symbol discovery, real-time and historical rates, on-demand currency conversion, daily time-frame windows, an...

Collections

Currencylayer API

OPEN

Pricing Plans

Currencylayer Plans Pricing

6 plans

PLANS

Rate Limits

Currencylayer Rate Limits

0 limits

RATE LIMITS

FinOps

Currencylayer Finops

FINOPS

Features

168 World Currencies

Coverage of fiat currencies plus precious metals, sourced from 15+ commercial-grade providers.

Real-Time Exchange Rates

Latest rates with refresh cadence ranging from hourly (Free) to 60 seconds (Enterprise and above).

Historical Exchange Rates

End-of-day rates for any day since 1999, available on every plan including Free.

Currency Conversion Endpoint

On-demand conversion between any two currencies at real-time or historical rates.

Time-Frame Endpoint

Daily rates between two arbitrary dates (max 365 days) for trend analysis.

Change Endpoint

Start rate, end rate, absolute change, and percentage change for a chosen window.

HTTPS Encryption

SSL-secured transport on Basic plan and above; Free is HTTP only.

Source Currency Switching

Choose any of the 168 codes as the base currency on Basic plan and above.

APILayer Unified Auth

One APILayer `apikey` works across Currencylayer and other APILayer marketplace APIs.

Bank-Grade Data Sourcing

Aggregated from 15+ commercial-grade providers, suitable for finance and treasury workloads.

Use Cases

E-Commerce Multi-Currency Pricing

Convert prices into the shopper's local currency at checkout using /convert and /live.

Treasury and Cash Reporting

Daily mark-to-market of multi-currency balances using /timeframe and /change.

Travel and Fintech Apps

Power in-app FX widgets, traveler wallets, and remittance quotes with /live.

Accounting and Ledger Reconciliation

Look up the official end-of-day rate for any historical transaction with /historical.

Backtesting and Analytics

Pull windowed rate history with /timeframe to feed quant or BI models.

Compliance and Audit Trails

Reference an immutable end-of-day rate when auditing cross-border payments.

AI Agents and MCP Tools

Expose live and historical rates to LLM agents via APILayer's MCP server pattern.

Integrations

APILayer Marketplace

Currencylayer is distributed via the APILayer hub; signup, billing, and key management share the marketplace.

Fixer

Sister APILayer FX product with overlapping surface; commonly used interchangeably or for redundancy.

Coinlayer

Cryptocurrency exchange rate API on the same APILayer platform.

Open Exchange Rates

Competing FX API that consumers benchmark Currencylayer against.

Frankfurter / ExchangeRate.host

Free/community FX alternatives often evaluated alongside Currencylayer.

Money / money.js

Server- and browser-side libraries paired with Currencylayer for conversion math.

Solutions

Free Plan

100 requests/month, hourly refresh, USD base only, HTTP only. Best for prototyping.

Basic Plan

10,000 requests/month at $14.99/mo, HTTPS, source-currency switching, /convert endpoint.

Professional Plan

100,000 requests/month at $39.99/mo, 10-minute refresh, /convert endpoint.

Enterprise Plan

100,000 requests/month at $59.99/mo, 60-second refresh, /timeframe endpoint.

Enterprise Plus Plan

500,000 requests/month at $99.99/mo, 60-second refresh, /timeframe and /change endpoints.

Custom Plan

Volume-based pricing, 60-second refresh, dedicated account team and priority support.

GitHubOrganization

PublicAPIsListing

APILayer MCP Server Pattern (currencylayer example)

Tools

Sources

opencollection: 1.0.0
info:
  name: Currencylayer API
  version: 1.0.0
request:
  auth:
    type: apikey
    key: apikey
    value: '{{apikey}}'
    placement: header
items:
- info:
    name: Symbols
    type: folder
  items:
  - info:
      name: List Supported Currencies
      type: http
    http:
      method: GET
      url: https://api.apilayer.com/currency_data/list
    docs: 'Returns the full list of currencies Currencylayer supports along with their

      full names. Available on every plan including Free.

      '
- info:
    name: Rates
    type: folder
  items:
  - info:
      name: Get Live Exchange Rates
      type: http
    http:
      method: GET
      url: https://api.apilayer.com/currency_data/live
      params:
      - name: source
        value: ''
        type: query
        description: 'Three-letter ISO 4217 source/base currency code. Defaults to USD on the Free

          plan; any source currency may be selected on Basic plan and above.

          '
      - name: currencies
        value: ''
        type: query
        description: Comma-separated list of ISO 4217 currency codes to limit the result set.
    docs: 'Returns the most recent exchange rate data. Rates refresh every 60 minutes

      on Free and Basic, every 10 minutes on Professional, and every 60 seconds

      on Enterprise and above.

      '
  - info:
      name: Get Historical Exchange Rates
      type: http
    http:
      method: GET
      url: https://api.apilayer.com/currency_data/historical
      params:
      - name: date
        value: ''
        type: query
        description: ISO-8601 date in `YYYY-MM-DD` format (any working day since 1999).
      - name: source
        value: ''
        type: query
        description: 'Three-letter ISO 4217 source/base currency code. Defaults to USD on the Free

          plan; any source currency may be selected on Basic plan and above.

          '
      - name: currencies
        value: ''
        type: query
        description: Comma-separated list of ISO 4217 currency codes to limit the result set.
    docs: 'Returns end-of-day historical exchange rates for any date since 1999.

      Available on every plan including Free.

      '
- info:
    name: Conversion
    type: folder
  items:
  - info:
      name: Convert Currency Amount
      type: http
    http:
      method: GET
      url: https://api.apilayer.com/currency_data/convert
      params:
      - name: from
        value: ''
        type: query
        description: Three-letter source currency code (ISO 4217).
      - name: to
        value: ''
        type: query
        description: Three-letter target currency code (ISO 4217).
      - name: amount
        value: ''
        type: query
        description: Amount to convert.
      - name: date
        value: ''
        type: query
        description: Optional historical date (YYYY-MM-DD) to use for the conversion rate.
    docs: 'Converts an amount from one currency to another using real-time or historical

      rates. Available on Basic plan and above.

      '
- info:
    name: Time Frame
    type: folder
  items:
  - info:
      name: Get Time-Frame Exchange Rates
      type: http
    http:
      method: GET
      url: https://api.apilayer.com/currency_data/timeframe
      params:
      - name: start_date
        value: ''
        type: query
        description: Start date for the time-frame window (YYYY-MM-DD).
      - name: end_date
        value: ''
        type: query
        description: End date for the time-frame window (YYYY-MM-DD).
      - name: source
        value: ''
        type: query
        description: 'Three-letter ISO 4217 source/base currency code. Defaults to USD on the Free

          plan; any source currency may be selected on Basic plan and above.

          '
      - name: currencies
        value: ''
        type: query
        description: Comma-separated list of ISO 4217 currency codes to limit the result set.
    docs: 'Returns daily historical exchange rates between two dates of your choice,

      with a maximum range of 365 days. Available on Enterprise plan and above.

      '
- info:
    name: Change
    type: folder
  items:
  - info:
      name: Get Currency Change Data
      type: http
    http:
      method: GET
      url: https://api.apilayer.com/currency_data/change
      params:
      - name: start_date
        value: ''
        type: query
        description: Start date for the change window (YYYY-MM-DD). Defaults to yesterday.
      - name: end_date
        value: ''
        type: query
        description: End date for the change window (YYYY-MM-DD). Defaults to today.
      - name: currencies
        value: ''
        type: query
        description: Comma-separated ISO 4217 currency codes to report on.
      - name: source
        value: ''
        type: query
        description: 'Three-letter ISO 4217 source/base currency code. Defaults to USD on the Free

          plan; any source currency may be selected on Basic plan and above.

          '
    docs: 'Returns currency change parameters (start rate, end rate, absolute change,

      percentage change) between two dates for any supported currency pair.

      Available on Enterprise Plus plan and above.

      '
bundled: true

Currencylayer

APIs

Currencylayer API

Collections

Currencylayer API

Pricing Plans

Currencylayer Plans Pricing

Rate Limits

Currencylayer Rate Limits

FinOps

Currencylayer Finops

Features

Use Cases

Integrations

Solutions

Semantic Vocabularies

Currencylayer Context

API Governance Rules

Currencylayer API Rules

JSON Structure

Currencylayer Change Structure

Currencylayer Convert Structure

Currencylayer Currencies Structure

Currencylayer Quotes Structure

Currencylayer Timeframe Structure

Example Payloads

Currencylayer Convertcurrency Example

Currencylayer Getchange Example

Currencylayer Gethistorical Example

Currencylayer Getlive Example

Currencylayer Gettimeframe Example

Currencylayer Listcurrencies Example

Resources

Sources