Rails MCP Server

by maquina-app

A Ruby implementation of a Model Context Protocol (MCP) server for Rails projects. This server allows LLMs to interact with Rails projects through the Model Context Protocol.

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What is Rails MCP Server?

The Rails MCP Server is a Ruby implementation of the Model Context Protocol (MCP) server designed for Rails projects. It provides a standardized way for AI models to interact with Rails projects for code analysis, exploration, and assistance.

How to use Rails MCP Server?

Install the gem: gem install rails-mcp-server. 2. Configure your Rails projects in the projects.yml file. 3. Start the server using rails-mcp-server in STDIO mode or rails-mcp-server --mode http in HTTP mode. 4. Integrate with an MCP-compatible client like Claude Desktop or use MCP Inspector for testing and debugging.

Key features of Rails MCP Server

Manage multiple Rails projects
Browse project files and structures
View Rails routes
Inspect model information
Get database schema information
Analyze controller-view relationships
Analyze environment configurations
Follow the Model Context Protocol standard

Use cases of Rails MCP Server

Code analysis by LLMs
Project exploration by AI models
AI assistance in Rails development
Automated documentation generation
Security vulnerability detection
Codebase understanding and summarization

FAQ from Rails MCP Server

What is the Model Context Protocol (MCP)?

The Model Context Protocol (MCP) is a standardized way for AI models to interact with their environment, defining a structured method for models to request and use tools, access resources, and maintain context during interactions.

How do I configure the server for my Rails projects?

Edit the projects.yml file in the configuration directory ($XDG_CONFIG_HOME/rails-mcp or ~/.config/rails-mcp on macOS, %APPDATA%\rails-mcp on Windows) to include your Rails projects with their paths.

How do I integrate with Claude Desktop?

Use the rails-mcp-setup-claude script or manually configure the Claude Desktop configuration file (~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows) to include the MCP server configuration.

What are the available tools?

The server provides tools like switch_project, get_project_info, list_files, get_file, get_routes, get_models, get_schema, analyze_controller_views, and analyze_environment_config.

How do I test and debug the server?

Use the MCP Inspector by running npm -g install @modelcontextprotocol/inspector and npx @modelcontextprotocol/inspector /path/to/rails-mcp-server.