mushroomdb

by MatthewSherlin · Databases · ★ 5

mushroomdb is an MCP server by MatthewSherlin. The embedded graph database that builds itself. Declarative linking rules, explainable derived edges, microsecond traversal. Rust core, Cypher subset, Python bindings. It has 5 GitHub stars and ranks #386 of 630 in Databases by stars.

Category: Databases
Author: MatthewSherlin
GitHub stars: 5
This week: Tracking since 18 Oct 2026
Weekly downloads: 682
Language: Rust
License: Other
Last update: 2026-10-23 (yesterday)
Links: Source npm

cypher
database
embedded-database
graph-database
knowledge-graph
rust
vector-search

How to install mushroomdb

mushroomdb is published on npm as mushroomdb-client, and it is listed in the official MCP Registry. These steps assume it runs as a local stdio server, which is the usual setup.

Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need Node.js for npx.

Add it to Claude Code from a terminal:

claude mcp add mushroomdb -- npx -y mushroomdb-client

Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

{
  "mcpServers": {
    "mushroomdb": {
      "command": "npx",
      "args": [
        "-y",
        "mushroomdb-client"
      ]
    }
  }
}

Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm mushroomdb and its tools are listed. The install guide covers VS Code and Codex.

Also listed in

Maintain this project? Get it featured ($99/mo, pinned at the top of Databases) or see what featuring includes.

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Frequently asked questions

What is mushroomdb?

mushroomdb is an MCP server by MatthewSherlin in the Databases category. The embedded graph database that builds itself. Declarative linking rules, explainable derived edges, microsecond traversal. Rust core, Cypher subset, Python bindings. It has 5 GitHub stars and ranks #386 of 630 in Databases by stars. It is written in Rust. It is licensed under Other. It was last updated yesterday.

Is mushroomdb free and open source?

mushroomdb lists its license as Other. Read the license text in the repository before using it in a commercial product, and check whether the service it connects to charges for API access.

What are the alternatives to mushroomdb?

Other Databases projects on MCP Harbor include Chat2DB, dbx, mcp-toolbox. Each alternative links to its own page with stars, license and recent activity. The Databases category ranks all 630 by stars, and you can re-sort it by growth this week.

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Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.