Rate-API is a developer-first exchange-rates API. We give engineers a fast, dependable way to add currency conversion, historical rates, crypto, stocks and precious metals to their products - without scraping pages, hard-coding values or wrestling with clunky integrations.
We believe exchange-rate data should be simple to consume, honest about its limits, and priced fairly. One API key, clear documentation, predictable rate limits, and responses you can model in minutes.
We offer 160+ world currencies refreshed hourly with daily history back to 1999; conversion, currency pairs, historical rates, cryptocurrency prices, stock closes and precious metals; JSON, XML and CSV output with rate-limit headers and usage metering; and official SDKs for PHP, JavaScript and Python plus an MCP server for AI tools.
Our API is versioned so integrations keep working as we improve. Whether you’re shipping a side project on the free plan or running production fintech, the same reliable data is one request away.