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https://github.com/truss44/mcp-crypto-price

A Model Context Protocol (MCP) server that provides real-time cryptocurrency analysis via CoinCap's API. Enables Claude and other MCP clients to fetch crypto prices, analyze market trends, and track historical data.
https://github.com/truss44/mcp-crypto-price

anthropic claude coincap crypto crypto-api cryptocurrency financial-data market-analysis mcp modelcontextprotocol nodejs real-time trading typescript

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A Model Context Protocol (MCP) server that provides real-time cryptocurrency analysis via CoinCap's API. Enables Claude and other MCP clients to fetch crypto prices, analyze market trends, and track historical data.

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README 

          
# Crypto Price & Market Analysis MCP Server

[![smithery badge](https://smithery.ai/badge/@truss44/mcp-crypto-price)](https://smithery.ai/server/@truss44/mcp-crypto-price) [![NPM Downloads](https://img.shields.io/npm/d18m/mcp-crypto-price)](https://www.npmjs.com/package/mcp-crypto-price)





  




A Model Context Protocol (MCP) server that provides comprehensive cryptocurrency analysis using the CoinCap API. This server offers real-time price data, market analysis, and historical trends through an easy-to-use interface. Supports both STDIO and Streamable HTTP transports.



## Requirements



- **Node.js 22.14+**

- **CoinCap API key** via `COINCAP_API_KEY`



## What's New



- **BREAKING**: CoinCap v2 API removed. Now uses v3 API exclusively. A `COINCAP_API_KEY` is required (free tier available at [pro.coincap.io/dashboard](https://pro.coincap.io/dashboard))

- Streamable HTTP transport added (while keeping STDIO compatibility)

- Smithery CLI scripts to build and run the HTTP server



## Usage



Add this configuration to your Claude Desktop config file:



- **MacOS**: `~/Library/Application Support/Claude/claude_desktop_config.json`

- **Windows**: `%APPDATA%/Claude/claude_desktop_config.json`



```json

{

  "mcpServers": {

    "mcp-crypto-price": {

      "command": "npx",

      "args": ["-y", "mcp-crypto-price"],

      "env": {

        "COINCAP_API_KEY": "YOUR_API_KEY_HERE"

      }

    }

  }

}

```



If your MCP client requires launching via `cmd.exe` on Windows:



```json

{

  "mcpServers": {

    "mcp-crypto-price": {

      "command": "cmd",

      "args": ["/c", "npx", "-y", "mcp-crypto-price"],

      "env": {

        "COINCAP_API_KEY": "YOUR_API_KEY_HERE"

      }

    }

  }

}

```



### Development scripts



```bash

npm run build         # Compile TypeScript โ†’ dist/

npm run format        # Format source files with Prettier

npm run lint          # Check for lint errors (ESLint + typescript-eslint)

npm run lint:fix      # Auto-fix lint errors

npm run types:check   # TypeScript type-check without emitting files

npm test              # Run all tests

npm run test:coverage # Run tests with coverage report

npm run inspector     # Open MCP inspector for interactive debugging

```



### Run as Streamable HTTP server



You can run the server over HTTP for environments that support MCP over HTTP streaming.



- Dev server (recommended during development):



```bash

npm run dev

```



- Build and run the HTTP server:



```bash

# Build (outputs to dist/)

npm run build



# Start the HTTP server

npm run start:http

```



- Build and run the STDIO server:



```bash

# Build (outputs to dist/)

npm run build



# Start the STDIO server

npm run start:stdio

```



The server listens on port 3000 by default (override with `PORT`). For clients that connect over HTTP (e.g. Smithery, Claude.ai), pass your API key as a query parameter:



```

http://localhost:3000/mcp?COINCAP_API_KEY=YOUR_API_KEY_HERE

```



For remote deployments:



```

https://mcp-crypto-price.codemonkeyinnovations.com/mcp?COINCAP_API_KEY=YOUR_API_KEY_HERE

```



## Required: CoinCap API Key



This server uses the CoinCap v3 API, which requires an API key. A **free tier** is available.



1. Sign up and get your API key at [pro.coincap.io/dashboard](https://pro.coincap.io/dashboard)

2. Add the key to your MCP client configuration:

   - **STDIO**: via the `COINCAP_API_KEY` environment variable (see Usage examples above)

   - **HTTP**: via the `COINCAP_API_KEY` query parameter in the connection URL (e.g. `/mcp?COINCAP_API_KEY=your_key`)



Without a valid API key, all tools will return an error with instructions on how to obtain one.



## Note for Smithery CLI users



This MCP server works directly via `npx` (configs above) and does not require Smithery.



If you do use the Smithery CLI, authenticate with `smithery auth login` or by setting `SMITHERY_API_KEY` in your environment. Recent versions of the Smithery CLI do not support passing API keys via `--key` (or older `--profile` patterns).



Launch Claude Desktop to start using the crypto analysis tools.



## Tools



#### get-crypto-price



Gets current price and 24h stats for any cryptocurrency, including:

- Current price in USD

- 24-hour price change

- Trading volume

- Market cap

- Market rank



#### get-market-analysis



Provides detailed market analysis including:

- Top 5 exchanges by volume

- Price variations across exchanges

- Volume distribution analysis

- VWAP (Volume Weighted Average Price)



#### get-historical-analysis



Analyzes historical price data with:

- Customizable time intervals (5min to 1 day)

- Support for up to 30 days of historical data

- Price trend analysis

- Volatility metrics

- High/low price ranges



#### get-top-assets



Lists top cryptocurrencies ranked by market cap, including:

- Current price in USD

- 24-hour price change

- Market cap and rank

- Configurable result count (1โ€“50, default 10)



#### get-technical-analysis



Returns the latest technical indicators for any cryptocurrency:

- SMA (Simple Moving Average) with period

- EMA (Exponential Moving Average) with period

- RSI (Relative Strength Index) with Overbought/Oversold/Neutral signal

- MACD with signal line, histogram, and Bullish/Bearish label

- VWAP (Volume Weighted Average Price, 24h)



#### get-rates



Returns USD-based conversion rates for fiat currencies and cryptocurrencies:

- All fiat currency rates (USD base)

- Top 10 cryptocurrency rates

- Optional `slug` parameter (e.g. `euro`, `bitcoin`) for a single rate lookup



#### get-exchanges



Lists top cryptocurrency exchanges ranked by 24h volume:

- Exchange name, rank, and 24h volume in USD

- Number of trading pairs and market share percentage

- Optional `exchangeId` parameter (e.g. `binance`) for single exchange details

- Optional `limit` parameter (1โ€“50, default 10)



## Sample Prompts



- "What's the current price of Bitcoin?"

- "Show me market analysis for ETH"

- "Give me the 7-day price history for DOGE"

- "What are the top exchanges trading BTC?"

- "Show me the price trends for SOL with 1-hour intervals"

- "What are the technical indicators for ETH right now?"

- "What's the current EUR to USD exchange rate?"

- "Which crypto exchanges have the highest 24h volume?"



## Project Inspiration



This project was inspired by Alex Andru's [coincap-mcp](https://github.com/QuantGeekDev/coincap-mcp) project.



## License



This project is licensed under the MIT License