# Open Exchange Rates MCP

> Open Exchange Rates provides real-time and historical currency data for over 200 global currencies. Use this MCP to instantly convert money between any two currencies, pull time-series data, or analyze OHLC metrics directly through your agent's chat interface.

## Overview
- **Category:** data-analytics
- **Price:** Free
- **Tags:** currency-exchange, forex-rates, financial-data, currency-conversion, historical-rates

## Description

Need reliable financial data without leaving your development environment? This MCP connects global exchange rates straight into your workflow. You can use it to check the most recent rates relative to USD, convert amounts instantly, or pull detailed historical trends for specific dates. The system lets you gather Open-High-Low-Close (OHLC) metrics, which is critical when building financial reports. Instead of manually querying complex APIs, you just ask your agent what you need. Since we host this within the Vinkius catalog, connecting it to any MCP-compatible client means all global financial data is available from one spot. It’s about getting accurate, reliable numbers for anything from international e-commerce pricing checks to deep market analysis.

## Tools

### convert_currency
Converts any specified value from one currency to another using current market data.

### list_currencies
Provides a complete list of all available currency symbols and their corresponding names.

### get_historical_rates
Retrieves the specific exchange rates for any chosen past date.

### get_latest_rates
Fetches the most current, up-to-the-minute exchange rates across all supported currencies.

### get_ohlc
Gathers Open-High-Low-Close data points for a defined time period to allow deep financial analysis.

### get_time_series
Pulls exchange rates that track changes over an extended sequence of dates or periods.

### get_usage
Displays your current API consumption and remaining plan limits to manage usage.

## Prompt Examples

**Prompt:** 
```
Get the latest exchange rates for EUR and GBP with USD as base.
```

**Response:** 
```
I've retrieved the latest rates. Currently, 1 USD is equivalent to 0.92 EUR and 0.79 GBP.
```

**Prompt:** 
```
Convert 1500 JPY to USD.
```

**Response:** 
```
Based on the latest market data, 1,500 JPY is approximately 10.12 USD.
```

**Prompt:** 
```
Check my current API usage and limits.
```

**Response:** 
```
You have used 450 out of 1,000 requests this month. Your plan is currently active and healthy.
```

## Capabilities

### Convert currency amounts
Takes a value and converts it accurately between any two supported currencies.

### Fetch the latest rates
Retrieves immediate, real-time exchange rates for multiple currencies relative to a base currency.

### Analyze historical trends
Pulls exchange rate data for any specific past date or tracks changes over an entire time period.

### Retrieve detailed market metrics
Gathers Open-High-Low-Close (OHLC) data points essential for deep financial reporting and analysis.

### Verify API usage
Checks your personal account limits and current consumption against your subscription plan.

## Use Cases

### Comparing foreign market pricing
An e-commerce manager needs to adjust prices for a new region and needs to verify the conversion rate between local currency X and USD. They simply ask their agent, 'What is the current exchange rate from X to USD?' The agent uses `get_latest_rates` and returns the precise number needed for pricing.

### Building a quarterly financial report
A financial analyst needs data showing how much a certain asset was worth three years ago. Instead of navigating complex web forms, they ask their agent to run `get_historical_rates` for the exact date range, instantly populating the required table.

### Testing cross-border payment logic
A developer is building a checkout flow and needs to simulate payments from five different countries. They use the agent's ability to run `convert_currency` multiple times, testing the currency logic instantly without writing complex API calls.

### Analyzing market volatility
A trader wants to see if a pair of currencies has been stable or volatile over the last six months. They use `get_time_series`, which pulls the entire rate history, letting them visualize genuine trend data for their models.

## Benefits

- Instantly convert amounts: Use the `convert_currency` tool to get accurate, up-to-the-minute values between any two currencies. No more manual spreadsheet lookups for pricing adjustments.
- Deep market insights with OHLC data: Pull Open-High-Low-Close metrics using `get_ohlc`. This level of detail is crucial when building professional financial reports or running backtesting simulations.
- Historical context on demand: Need to know what the rate was last year? The `get_historical_rates` tool lets you pinpoint exchange rates for any specific date, perfect for compliance or yearly comparisons.
- Track trends over time: Instead of single data points, use `get_time_series` to pull full rate histories. This shows genuine market movement and helps predict volatility across different periods.
- Know your limits: Use the `get_usage` tool to check your plan status right from the chat. You'll always know if you’re hitting a quota wall before your mission stalls.

## How It Works

The bottom line is you get complex, reliable currency data simply by asking your agent a question.

1. Subscribe to this MCP and provide your Open Exchange Rates App ID.
2. Direct your AI client (Claude, Cursor, etc.) to the connection. Your agent now has access to all global financial tools.
3. Ask a natural language question, like 'What was the exchange rate between JPY and USD on May 1st?' The MCP sends back the accurate data.

## Frequently Asked Questions

**Can Open Exchange Rates MCP convert currencies using today's rates?**
Yes, absolutely. You can use `convert_currency` to get amounts converted based on the most current market data available through the tool.

**Does Open Exchange Rates MCP work with future dates?**
No, this MCP only handles historical and real-time data. You cannot retrieve exchange rates for dates in the future; you must use `get_latest_rates` or specify a past date.

**What is OHLC data using Open Exchange Rates MCP?**
OHLC stands for Open-High-Low-Close. Using `get_ohlc`, you retrieve the opening price, highest reached price, lowest recorded price, and closing price for a given period.

**How do I check my rate limits with this MCP?**
You simply ask your agent to run the `get_usage` tool. It will show you exactly how many requests you've used and what your remaining plan capacity is.

**Does Open Exchange Rates MCP support every currency?**
No, it supports over 200 currencies. If a currency isn't listed in the `list_currencies` tool output, you won't be able to use its rates.