Rails-Mcp-Server

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rails-mcp-server is an AI Agents & Automation tool that implements a Model Context Protocol (MCP) server for Rails projects. It allows LLMs to interact with Rails projects for code analysis, exploration, and development assistance.

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At a glance

Pricing

Open Source

Free tier

Yes

API

Yes

Skill level

Technical

About

What is rails-mcp-server?

The rails-mcp-server is a Ruby gem that provides a Model Context Protocol (MCP) server specifically designed for Rails projects. This server enables Large Language Models (LLMs) to seamlessly interact with Rails applications, offering capabilities for in-depth code analysis, project exploration, and development assistance. Key features include managing multiple Rails projects, browsing project files, viewing Rails routes, inspecting model information, and analyzing controller-view relationships. It also provides access to database schema information, environment configurations, and comprehensive documentation for Rails, Turbo, Stimulus, and Kamal. The server supports both STDIO and HTTP modes for communication and integrates with tools like Claude Desktop and GitHub Copilot Agent, making it a versatile solution for AI-powered Rails development.

Best used for

Ideal for developers who need to integrate AI models with their Rails projects, analyze code structures, and get development assistance. Especially valuable for enhancing productivity through LLM-powered project exploration and understanding of Rails applications.

Common actions

analyze code

explore projects

assist development

integrate LLMs

manage Rails applications

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Capabilities

Key features

Manage Rails projects
Browse project files
View Rails routes
Inspect model information
Analyze controller-view relationships
Execute sandboxed Ruby code
Access Rails documentation

Target Audience

developer

Integrations

claude-desktopgithub-copilot

Pricing & Plans

Open Source

Free

FAQs

What is the Model Context Protocol (MCP)?

The Model Context Protocol (MCP) is a standardized method for AI models to interact with their environment. It defines how models request and use tools, access resources, and maintain context during interactions, enabling structured communication between AI and systems like Rails projects.

How can I configure rails-mcp-server for my Rails projects?

You can configure the server using the interactive `rails-mcp-config` tool, which provides a user-friendly terminal interface for managing projects, downloading guides, and setting up integrations. Alternatively, you can manually edit the `projects.yml` file in your configuration directory.

Does rails-mcp-server support integration with GitHub Copilot Agent?

Yes, rails-mcp-server works with GitHub Copilot Agent. You can configure it by creating an `mcp.json` file in your repository's `.github/copilot` directory or by setting the `RAILS_MCP_PROJECT_PATH` environment variable. This allows Copilot to utilize the server's tools for Rails projects.

Can I access the Rails MCP Server from other machines on my local network?

By default, the HTTP server binds only to localhost for security. To allow access from other machines on your local network, you can start the server with the `--bind-all` flag. This binds the server to 0.0.0.0, enabling access from local network IP ranges and .local domain names.

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