Mistral Codestral MCP Server

# Mistral Codestral MCP Server An MCP server implementation for the Mistral Codestral API, providing code completion, bug fixing, and test generation capabilities. ## Features - Code completion with Mistral's Codestral model - Bug detection and fixing - Automated test generation - Support for multiple programming languages - Rate limiting and error handling - Resource access for code files - Fill-in-the-Middle (FIM) completion support - Comprehensive input validation using Zod schemas ## Installation 1. Clone this repository 2. Install dependencies: ```bash npm install ``` 3. Copy `.env.example` to `.env` and add your Mistral API key: ```bash cp .env.example .env ``` 4. Build the project: ```bash npm run build ``` ## Usage Start the server: ```bash npm start ``` ### Configuration Add your Mistral API key to the `.env` file: ``` MISTRAL_API_KEY=your_api_key_here ``` ### Available Tools #### code_completion Process code for completion, bug fixing, or test generation: Parameters: - `code` (string, required): The code to process - `language` (string, optional): Programming language - `task` (string, required): One of: - `"complete"`: Code completion - `"fix"`: Bug fixing - `"test"`: Test generation - `"fim"`: Fill-in-the-Middle completion ### API Details The server supports two main Mistral models: - `codestral-latest`: Default model for code-related tasks - `codestral-mamba-latest`: Alternative model with Mamba architecture Features include: - Automatic rate limiting (100ms minimum between requests) - 30-second timeout for API calls - Comprehensive error handling for API responses - Response validation using Zod schemas - Automatic extraction of code blocks from responses - Debug logging for API interactions ## Development Run in development mode with auto-reloading: ```bash npm run dev ``` Run tests: ```bash npm test ``` ## Error Handling The server implements comprehensive error handling: - API errors are properly caught and formatted - Rate limiting is implemented - Input validation using Zod schemas - Proper error propagation to clients - Specific error messages for common issues: - Authentication failures - Rate limit exceeded - Server errors - Invalid input validation ## Resource Access The server provides access to code files through the `file://code` resource URI, allowing integration with workspace files. ## License MIT