Kraken Pro MCP

Kraken Pro MCP

A Model Context Protocol (MCP) server that provides real-time cryptocurrency market data from the Kraken Pro exchange.

Overview

This MCP server exposes Kraken's public API as MCP tools, allowing AI assistants to fetch real-time cryptocurrency prices, trading pairs, and market data.

Available Tools

| Tool | Description | |------|-------------| | get_system_status | Check if Kraken API is online and operational | | get_ticker | Get real-time ticker data for a trading pair (e.g., XBTUSD, ETHUSD) | | get_asset_info | List all available assets on Kraken with their details |

Installation

pnpm install

Development

Run in development mode with hot reload:

pnpm run dev

Build

Compile TypeScript to JavaScript:

pnpm run build

Usage

Start the MCP server:

pnpm start

The server runs on stdio and communicates via the Model Context Protocol.

Claude Desktop

To use this server with Claude Desktop, add the following to your Claude Desktop configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%/Claude/claude_desktop_config.json

{
    "mcpServers": {
        "kraken-pro": {
            "command": "node",
            "args": [
                "<PATH TO REPO>/kraken-pro-mcp/dist/index.js"
            ]
        }
    }
}

Replace <PATH TO REPO> with the absolute path to this repository on your system.

Development Mode

For development and testing new changes with hot reload, use the development mode instead:

{
    "mcpServers": {
        "kraken-pro": {
            "command": "pnpm",
            "args": ["run", "dev"],
            "cwd": "<PATH TO REPO>/kraken-pro-mcp"
        }
    }
}

This will automatically restart the server when you make changes to the source code.

Testing

# Run all tests in watch mode
pnpm test

# Run unit tests only (with mocks)
pnpm run test:unit

# Run acceptance tests (hits real Kraken API - rate limited)
pnpm run test:acceptance

Linting & Formatting

# Check linting
pnpm run lint

# Format code
pnpm run format

# Run all checks (lint + format + organize imports)
pnpm run check

Project Structure

src/
  index.ts           # MCP server entry point with tool registrations
  kraken-client.ts   # Kraken API client using native fetch
  types.ts           # Shared TypeScript interfaces
test/
  unit/              # Fast unit tests with mocked fetch
  acceptance/        # Slower integration tests hitting real API

Technologies

• Model Context Protocol - Protocol for AI tool integration
• Zod - Schema validation
• TypeScript 5.9 with strict mode
• Vitest for testing
• Biome for linting and formatting

License

ISC