Rails AI Context
38 MCP tools that give AI agents live access to your Rails schema, models, routes & conventions. Works with Claude Code, Cursor, Copilot, OpenCode, Codex CLI. Zero config.
What is Rails AI Context?
Rails AI Context is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to 38 mcp tools that give ai agents live access to your rails schema, models, routes & conventions. works with claude code, cursor, copilot, opencode, codex cli. zero config.
38 MCP tools that give AI agents live access to your Rails schema, models, routes & conventions. Works with Claude Code, Cursor, Copilot, OpenCode, Codex CLI. Zero config.
This server falls under the Coding Agents category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- 38 MCP tools that give AI agents live access to your Rails s
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx rails-ai-contextConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Rails AI Context
Rails AI Context is a Ruby gem that provides 38 MCP tools giving AI assistants live, verified access to a Rails application's schema, models, routes, controllers, views, and coding conventions. Instead of guessing at column names, association names, or test patterns, the AI calls tools like rails_get_schema, rails_model_details, or rails_search_code and receives ground-truth data extracted via Prism AST parsing — each result tagged [VERIFIED] or [INFERRED] so the AI knows what to trust. It works with Claude Code, Cursor, GitHub Copilot, OpenCode, and Codex CLI with zero manual configuration after installation.
Prerequisites
- Ruby 3.2, 3.3, or 3.4 installed
- Rails 7.1, 7.2, or 8.0 application
- Bundler for gem management
- An MCP-compatible AI coding tool such as Claude Code or Cursor
- The rails-ai-context gem added to your Gemfile (development group)
Add the gem to your Gemfile
Add rails-ai-context to the development group in your Rails application's Gemfile.
gem "rails-ai-context", group: :developmentInstall the gem
Run bundle install to fetch and install the gem and its dependencies.
bundle installRun the install generator
The generator creates the MCP configuration file and sets up per-AI-tool config files that are auto-detected when you open the project in a supported IDE.
rails generate rails_ai_context:installStart the MCP server
Launch the stdio MCP server that AI tools connect to. The server exposes all 38 tools over the MCP protocol.
rails ai:serveAlternative: standalone usage without Gemfile
Install the gem globally and use it on any Rails project without modifying its Gemfile.
gem install rails-ai-context
cd your-rails-app
rails-ai-context init
rails-ai-context serveVerify tools from the CLI
Test individual tools from the command line before wiring up the MCP client to confirm the server can read your schema and models.
rails 'ai:tool[schema]' table=users
rails 'ai:tool[model_details]' model=User
rails 'ai:tool[search_code]' pattern=publishable? match_type=traceRails AI Context Examples
Client configuration
Claude Desktop configuration for the Rails AI Context MCP server using the Rails CLI to start the server process.
{
"mcpServers": {
"rails-ai-context": {
"command": "bundle",
"args": ["exec", "rails", "ai:serve"],
"cwd": "/absolute/path/to/your-rails-app",
"env": {
"RAILS_ENV": "development"
}
}
}
}Prompts to try
Example prompts that trigger Rails AI Context tools to give the AI verified information about your application.
- "What columns does the users table have? Check the live schema."
- "Show me all associations and scopes defined on the User model"
- "Trace every place the publishable? method is called in the codebase"
- "What routes are defined for the OrdersController?"Troubleshooting Rails AI Context
rails ai:serve fails with LoadError or uninitialized constant
Ensure RAILS_ENV=development and that the gem is in the development group in Gemfile. Run 'bundle exec rails ai:serve' (with bundle exec) to ensure the gem is loaded from the correct Gemfile context.
Schema tool returns empty results or wrong columns
The schema tool reads db/schema.rb or structure.sql. Run 'rails db:schema:dump' to regenerate the schema file if it's out of date, then retry the tool.
AI client shows 'server not found' after configuration
The 'cwd' path in the MCP config must be the absolute path to the Rails application root (where Gemfile lives). Also confirm 'rails ai:serve' runs without errors in that directory before connecting the AI client.
Frequently Asked Questions about Rails AI Context
What is Rails AI Context?
Rails AI Context is a Model Context Protocol (MCP) server that 38 mcp tools that give ai agents live access to your rails schema, models, routes & conventions. works with claude code, cursor, copilot, opencode, codex cli. zero config. It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Rails AI Context?
Follow the installation instructions on the Rails AI Context GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Rails AI Context?
Rails AI Context works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Rails AI Context free to use?
Yes, Rails AI Context is open source and available under the MIT license. You can use it freely in both personal and commercial projects.
Rails AI Context Alternatives — Similar Coding Agents Servers
Looking for alternatives to Rails AI Context? Here are other popular coding agents servers you can use with Claude, Cursor, and VS Code.
Dify
★ 142.2kProduction-ready platform for agentic workflow development.
Ruflo
★ 54.0k🌊 The leading agent orchestration platform for Claude. Deploy intelligent multi-agent swarms, coordinate autonomous workflows, and build conversational AI systems. Features enterprise-grade architecture, self-learning swarm intelligence, RAG integrat
Goose
★ 45.7kan open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM
Antigravity Awesome Skills
★ 38.3kInstallable GitHub library of 1,400+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and more. Includes installer CLI, bundles, workflows, and official/community skill collections.
AgentScope
★ 25.5kBuild and run agents you can see, understand and trust.
Serena
★ 24.5kA coding agent toolkit that provides IDE-like semantic code retrieval and editing tools, enabling LLMs to efficiently navigate and modify codebases using symbol-level operations instead of basic file reading and string replacements.
Browse More Coding Agents MCP Servers
Explore all coding agents servers available in the MCPgee directory. Each server includes setup guides for Claude, Cursor, and VS Code.
Set Up Rails AI Context in Your Editor
Choose your AI client for step-by-step setup instructions.
Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
Ready to use Rails AI Context?
Browse our complete directory of 33,000+ MCP servers, read setup guides for your editor, and start building with the Model Context Protocol.