Exchange rate API
for developers

Choose your base currency and fetch current, historical, and streaming FX rates in JSON.

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5,000 requests/month free. No credit card.
144Currencies
10,296Unique pairs
JSONREST + MCP
1mIntraday history
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The practical bits of FX data

Explore the docs

Current rates

Fetch the latest supported rates from one straightforward endpoint.

GET /v1/latest/EUR

Historical ranges

Pull the earlier observations you need for a chart or report.

GET /v1/range

Source-aware responses

Each rate comes with the fields needed to understand what it represents.

sources · effective_at

What the API returns

Current rates arrive with their source, observation time, and market session, not just a number to display.

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MCP setupOpenAPIPlain-text docs
api.exchangerate.dev
GET/v1/latest/USD?symbols=EUR,GBP
Loading response...

Find the currencies you need

Check coverage
EUR/USDLoadingGBP/USDLoadingUSD/JPYLoadingUSD/CHFLoadingUSD/CADLoadingAll pairsBrowse coverage

Intraday rates

Follow movement within the trading day.

WebSocket streams

Receive updates over a persistent connection.

Historical rates

Check a date, view the rate and download the result.

Coverage and history vary by pair and plan. For USD benchmarks: Dollar Index API · USD Strength Index.

Use the tools you know

Code examples, spreadsheet formulas, and MCP for your AI agent.

Browse integration guides

Use a spreadsheet: Convert currency in Excel

PythonJavaScript / Node.jsGoogle SheetsExcelGoSwiftZapierMCP

Where the rates go

Compare exchange rate APIs

SaaS billing

Display prices in your customer’s currency.

Invoicing

Show the rate behind each conversion on every invoice.

Accounting

Keep the rate date and source with the record.

Portfolio reporting

Value holdings in a common currency across every account.

Pricing

Free

REST, historical rates and MCP; display with linked credit

$0 forever

5,000 requests/month

  • REST + historical rates
  • MCP access
  • 10 requests/min

Basic

Commercial REST, historical rates and MCP for small production apps

$19 / month

100,000 requests/month

  • Commercial use
  • MCP access
  • 60 requests/min
Recommended

Plus

For apps with history and streaming

$39 / month

300,000 requests/month

  • Commercial use
  • 1 streaming connection
  • 10 pairs per connection

Pro

Higher REST throughput for commercial products with historical queries and MCP

$89 / month

1,000,000 requests/month

  • Commercial use
  • 5 streaming connections
  • 100 pairs per connection

Questions

More about the data in our methodology, or about the service.

Is there a free live FX rates API?
Yes. Free live rates arrive 15 minutes late; paid plans are live. You can try the JSON API without a key. A free account includes 5,000 requests per month at 10 requests per minute, with no credit card. Display needs visible linked credit near rates.
What currencies does exchangerate.dev cover?
The API covers 10,296 unique pairs across 144 currencies. The currency converter lists currencies and their source types. Direct and calculated cross rates share the same response format.
How often do rates update?
All 144 currencies have live coverage. ECB fixes give daily fallback for about 30 currencies. Read source, effective_at, and market_session for each response. A fresh API response does not necessarily mean a new market observation.
What does indicative mean?
These rates are for reference, not for settlement, regulated trading, or use as a source of record. A rate in the API is not a promise that a bank or broker will execute a conversion at that price.
Can I use the API commercially?
Commercial display on your own website or app: Free requires visible linked credit near rates. Paid plans need no credit. No redistribution.
How much historical data is available?
History depends on the currency pair and interval. Daily reference series and intraday observations have different coverage. Check the historical-data documentation or use the historical lookup tool to see what is available for a date.

Start free

Free display with linked credit. Paid plans from $19/month.

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