Currency exchange-rate API for developers and AI agents
Build with REST endpoints, SDK-ready JSON responses, and practical code samples. Add MCP when you want LLM clients to use the same exchange-rate data.
GET https://api.currencybeacon.com/v1/latest?api_key=YOUR_API_KEY&base=USD&symbols=EUR,GBP,CAD
Use REST directly, follow code samples, or connect the MCP server for LLM clients.
Build with REST, code samples, or MCP
Start with familiar REST endpoints and SDK-friendly JSON. Use MCP as an additional path when teams want exchange-rate tools inside LLM clients.
REST API endpoints
Call /latest, /convert, /historical, /timeseries, and /currencies from any backend or app.
Code samples and SDK-ready JSON
Use documented request patterns and lightweight JSON responses that work cleanly with PHP, JavaScript, and server-side SDK wrappers.
MCP for AI clients
Connect Claude, ChatGPT, Cursor, VS Code, Codex, and other MCP-compatible clients using the same account and quota.
Fetch live USD rates, convert checkout totals, and chart 90-day movement with the REST API.
Trusted by 100,000+ businesses worldwide
Built for production currency workflows
REST endpoints, historical data, code samples, and optional MCP tools for finance teams, product teams, and developers building reliable exchange-rate workflows.
Production REST API, with MCP when teams need agent access
Use the REST API for applications, dashboards, checkout, billing, and reporting. Add the MCP server for LLM clients without creating a second account or quota system.
GET https://api.currencybeacon.com/v1/convert?api_key=YOUR_API_KEY&from=USD&to=EUR&amount=100
Enterprise buyers get the controls they expect
Keep API and agent usage measurable, authenticated, and connected to the same account limits.
Institutional-grade sources
Currency data sourced from trusted financial institutions and leading data providers.
Production uptime
Infrastructure designed for billing, checkout, reporting, and internal finance systems.
Historical analysis
Access historical and timeseries data for reconciliation, reporting, forecasts, and audits.
Developer tooling
Clear API documentation and code samples help engineering teams ship integrations faster.
Usage governance
Track API activity, monitor quota consumption, and keep REST and MCP usage under one account.
Enterprise support
Custom quotes, invoicing, and technical support options for teams with higher-volume needs.
Real-Time Mid-Market Exchange Rates
Access the most accurate exchange rates available. Our mid-market rates represent the true midpoint between buy and sell prices, sourced from trusted financial institutions worldwide.
Pricing for production currency workflows
Start free, move into higher request volume when traffic grows, and use the same quota across REST API calls and MCP tool usage.
Prototype with live and historical endpoints before committing.
REST and MCP calls share this quota.
- Plan highlights
- Latest, historical, and conversion rates
- Community support
Low-volume production apps, internal tools, and early products.
REST and MCP calls share this quota.
- Plan highlights
- Latest, historical, and conversion rates
- Email support
More request volume and faster updates for growing products.
REST and MCP calls share this quota.
- Plan highlights
- Timeseries API
- Base currency switching
- Email support
Realtime updates and dedicated support for high-volume products.
REST and MCP calls share this quota.
- Plan highlights
- Timeseries API
- Base currency switching
- Dedicated support
- Guaranteed uptime SLA
Prototype with live and historical endpoints before committing.
REST and MCP calls share this quota.
- Plan highlights
- Latest, historical, and conversion rates
- Community support
Low-volume production apps, internal tools, and early products.
REST and MCP calls share this quota.
- Plan highlights
- Latest, historical, and conversion rates
- Email support
More request volume and faster updates for growing products.
REST and MCP calls share this quota.
- Plan highlights
- Timeseries API
- Base currency switching
- Email support
Realtime updates and dedicated support for high-volume products.
REST and MCP calls share this quota.
- Plan highlights
- Timeseries API
- Base currency switching
- Dedicated support
- Guaranteed uptime SLA
Need enterprise volume, invoicing, or dedicated support?
Talk to us about custom request limits, procurement-friendly billing, technical account support, and deployment requirements.
Start using the CurrencyBeacon API for free today.
Common currency conversions
Quick links to live rate dashboards for popular USD pairs, backed by the same exchange-rate data available through the REST API.