subelsky/bundler_mcp

Overview

A Model Context Protocol server that lets AI agents query Ruby project dependencies. It reads the Gemfile and provides source code and metadata for each gem using the bundler API.

Best for

Best for
Ruby developers integrating AI agents with their project dependency management.

Use cases

• Inspecting gem dependencies in a Ruby project.
• Retrieving source code for a specific gem.
• Querying gem metadata like version and license.

How to use

Install

bundle add bundler_mcp --group=development

Tools exposed

• list_project_gems
• get_gem_details

Tested with

Cursor, Claude Desktop

Example client config

{\n  "mcpServers": {\n    "bundler-mcp": {\n      "command": "/Users/mike/my_project/bin/bundler_mcp",\n      "env": {\n        "BUNDLER_MCP_LOG_FILE": "/Users/mike/my_project/log/mcp.log",\n        "BUNDLE_GEMFILE": "/Users/mike/my_project/subdir/Gemfile"\n      }\n    }\n  }\n}

Notes

A Model Context Protocol server that lets AI agents query Ruby project dependencies. It reads the Gemfile and provides source code and metadata for each gem using the bundler API.

19 stars on GitHub. Last updated 2025-06-29. Licensed MIT.

Use cases

• Inspecting gem dependencies in a Ruby project.
• Retrieving source code for a specific gem.
• Querying gem metadata like version and license.

Pros

• Provides structured access to bundler information via a standard protocol.
• Leverages existing bundler infrastructure for reliable data.
• Open source and straightforward to integrate.

Cons

• Limited to gems listed in Gemfile, not all installed gems.
• Requires a Ruby environment with bundler configured.
• Small community and limited support (19 stars).

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.