A Model Context Protocol (MCP) server enabling AI agents to query information about dependencies in a Ruby project's `Gemfile`. Built with
If you want an AI assistant working directly with Bundler MCP, the bundler mcp mcp server is the bridge. A Model Context Protocol (MCP) server enabling AI agents to query information about dependencies in a Ruby project's Gemfile. Built with fast-mcp.
A Model Context Protocol (MCP) server enabling AI agents to query information about dependencies in a Ruby project's Gemfile. Built with fast-mcp.
Once connected, the assistant can call these 3 tools directly:
Documentation — Available on RubyDoclist_project_gems — The list_project_gems tool exposed by this serverget_gem_details — Retrieves detailed information about a specific gem, including:The server is distributed via npm as @modelcontextprotocol/inspector, so most clients can run it without a manual build step. Add it to your MCP client's configuration and restart the client to pick it up — the copy-paste configs for Claude Desktop, Claude Code and Cursor are on this page.
The server reads 2 environment variables: BUNDLER_MCP_LOG_FILE, BUNDLE_GEMFILE. Keep credentials in your client's env block or a secrets manager rather than committing them.
Knowledge and memory servers address the most frustrating trait of language models — walking into every conversation with no recollection of the last one. Bundler MCP sits in that group, and the shape of its toolset — Documentation, list_project_gems, get_gem_details — tells you what it is really for. Worth comparing against the other knowledge memory servers in this directory before you commit to one, since several overlap in scope but differ sharply in setup cost and permissions.
| Tool | What it does |
|---|---|
| Documentation | [Available on RubyDoc](https://www.rubydoc.info/gems/bundler_mcp/) |
| list_project_gems | The list_project_gems tool exposed by this server. |
| get_gem_details | Retrieves detailed information about a specific gem, including: |
{
"mcpServers": {
"bundler-mcp": {
"command": "/Users/mike/my_project/bin/bundler_mcp"
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| BUNDLER_MCP_LOG_FILE | Configuration value read at startup. | Optional |
| BUNDLE_GEMFILE | Configuration value read at startup. | Optional |
A knowledge graph your assistant keeps between sessions — entities, relations and observations that persist.
Kill hallucinated APIs — version-accurate, up-to-date library documentation injected straight into context.
Your workspace, on speaking terms with AI — search, read and write Notion pages and databases.
A structured scratchpad for hard problems — stepwise reasoning with revisions, branches and visible logic.
Symbol-level code navigation, refactoring and memory for coding agents — the IDE brain your assistant has been missing.
Chat with your second brain — search, read and write vault notes through the Local REST API.