# Global Exchange Rates > Professional exchange rates and currency conversion API. Official daily foreign exchange (FX / forex) rates from central banks and tax authorities worldwide, with historical exchange rates and a built-in currency converter. Available as a REST API and as a Model Context Protocol (MCP) server for AI agents. Key facts: - Data: official exchange rates from central banks and tax authorities; multiple providers; historical rates; bid/ask where supported. - Coverage: central banks and tax authorities worldwide, across a wide range of currencies. Enumerate the exact providers and currencies with the `list_providers` and `list_currencies` MCP tools (or the REST endpoints). - GLOBAL provider: a proprietary rate that blends official central-bank data with market rates. - Update frequency: central-bank rates updated hourly; the GLOBAL proprietary rate published daily. - Historical data: from 1 January 2024 for central-bank providers, and from 1 January 2025 for the GLOBAL rate. - Reliability: 5,000+ automated daily tests plus manual review of anomalies. - Response formats: JSON (default), XML, CSV. - Authentication: a subscription key sent in the `Subscription-Key` HTTP header. - Plans: PROFESSIONAL and ENTERPRISE, each with a 30-day free trial and no credit card required. - Use cases: accounting and ERP systems, invoicing, treasury, business intelligence, financial reporting and analytics, research, and auditing. ## MCP server (for AI agents) - [MCP setup guide](https://www.globalexchangerates.org/mcp): How to connect Claude, Cursor, VS Code or any custom agent. - [MCP endpoint](https://api.globalexchangerates.org/v1/mcp): Remote MCP server over Streamable HTTP (JSON-RPC 2.0). Tools: `get_exchange_rates` (latest or historical rates), `convert_currency` (convert an amount between currencies), `list_currencies` (supported currencies), `list_providers` (available rate providers). - [Registry listing](https://registry.modelcontextprotocol.io/v0.1/servers?search=org.globalexchangerates/exchange-rates): The server in the official MCP Registry (`org.globalexchangerates/exchange-rates`). ## API - [Documentation](https://www.globalexchangerates.org/docs/): Full REST API reference for all endpoints and parameters. - [OpenAPI specification](https://www.globalexchangerates.org/docs/openapi.json): OpenAPI 3 description of the public REST API (JSON). - [Get an API key](https://dev.globalexchangerates.org/): Sign up and obtain a subscription key. - REST endpoints provide the same data as the MCP tools: latest rates, historical rates, currency conversion, the list of currencies, and the list of providers. See the documentation for exact paths and parameters. ## API documentation (Markdown) ### Guides - [Introduction](https://www.globalexchangerates.org/docs/introduction-926265m0.md): - [Authentication](https://www.globalexchangerates.org/docs/authentication-926254m0.md): - [Formats](https://www.globalexchangerates.org/docs/formats-926293m0.md): - [Extended rates (Bid/Ask)](https://www.globalexchangerates.org/docs/extended-rates-bidask-1591525m0.md): - [Rate limiting and quotas](https://www.globalexchangerates.org/docs/rate-limiting-and-quotas-926266m0.md): - [Errors](https://www.globalexchangerates.org/docs/errors-926268m0.md): - [Client libraries](https://www.globalexchangerates.org/docs/client-libraries-1031595m0.md): ### API reference - Currencies [/currencies](https://www.globalexchangerates.org/docs/currencies-15601948e0.md): Returns the list of available currencies. - Exchange Rates [/latest](https://www.globalexchangerates.org/docs/latest-15601949e0.md): Returns the latest exchange rates for the specified provider. If no provider is specified, exchange rates from the GLOBAL provider will be returned. - Exchange Rates [/historical](https://www.globalexchangerates.org/docs/historical-15601950e0.md): Returns historical exchange rates for a specific date and provider. - Providers [/providers](https://www.globalexchangerates.org/docs/providers-15601951e0.md): Returns the list of available exchange rate providers. - Conversion [/convert](https://www.globalexchangerates.org/docs/convert-15677224e0.md): Converts amounts between currencies. ### Schemas - Schemas [currency](https://www.globalexchangerates.org/docs/currency-6042274d0.md): - Schemas [errorResponse](https://www.globalexchangerates.org/docs/errorresponse-6042275d0.md): - Schemas [exchangeRateResponse](https://www.globalexchangerates.org/docs/exchangerateresponse-6042276d0.md): - Schemas [provider](https://www.globalexchangerates.org/docs/provider-6042277d0.md): - Schemas [currencyArray](https://www.globalexchangerates.org/docs/currencyarray-6042278d0.md): - Schemas [providerArray](https://www.globalexchangerates.org/docs/providerarray-6042279d0.md): ## Integrations - No-code and automation: Zapier, Make, Microsoft Power Automate, Boomi. - Accounting and ERP: QuickBooks, Salesforce, SAP (S/4HANA and ECC), Microsoft Dynamics 365 Business Central, Microsoft Dynamics 365 Finance & Operations. - Data and business intelligence (via the REST API): step-by-step guides for Power BI, Microsoft Excel, Google Sheets, Snowflake, and IFS Cloud. - AI agents: Model Context Protocol (MCP) server (see above). ## Common questions - How do I get exchange rates inside an AI assistant such as Claude, ChatGPT or Cursor? Connect the MCP server at https://api.globalexchangerates.org/v1/mcp; see the MCP setup guide. - Do you provide historical exchange rates? Yes, daily historical rates by date, via the REST API and the `get_exchange_rates` MCP tool. - Can I convert an amount between currencies? Yes, convert between any supported currencies via the REST conversion endpoint or the `convert_currency` MCP tool. - Which currencies and providers are supported? Official rates from central banks and tax authorities worldwide. Enumerate them with the `list_currencies` and `list_providers` MCP tools (or the REST endpoints). - What response formats are available? JSON (default), XML and CSV. - How often are rates updated? Central-bank rates hourly; the GLOBAL proprietary rate daily. - Is there a free trial? Yes, a 30-day free trial on PROFESSIONAL and ENTERPRISE, with no credit card required. - What integrations are available? Zapier, Make, Power Automate, Boomi, QuickBooks, Salesforce, SAP (S/4HANA and ECC), Microsoft Dynamics 365 Business Central and Finance & Operations, plus guides for Power BI, Excel, Google Sheets, Snowflake and IFS Cloud, and an MCP server for AI agents. - How does Global Exchange Rates compare to OANDA or XE? It focuses on official central-bank coverage, easy integration, and transparent, competitive pricing. - [Home](https://www.globalexchangerates.org/): Product overview. - [Pricing](https://www.globalexchangerates.org/plan/): Plans and limits.