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Gemdex MCP Server

local only

Gemdex runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 23 Sep 2026.

Persistent memory layer for AI coding agents: save, recall, update via Gemini plus LanceDB

Installs / week
npm · gemdex-mcp
4
Stars
5 open issues
23 Sep 2026
Last commit
no recent releases
MIT
License
TypeScript

What the code does

We read the source, 23 min ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

            const child = spawn(this.command, this.args, {
Builds a file path from a variable packages/mcp/integration/byoi.mjs:352
            path.join(blobDir, memoryId),
        self._env = dict(os.environ) if env is None else dict(env)

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add gemdex -- npx -y gemdex-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "gemdex": {
      "args": [
        "-y",
        "gemdex-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.gemdex]
command = "npx"
args = ["-y", "gemdex-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "gemdex": {
      "args": [
        "-y",
        "gemdex-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "gemdex": {
      "args": [
        "-y",
        "gemdex-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: GEMINI_API_KEY (Google AI Studio key for local mode, or the exact value 'local' for on-device MLX text embeddings. Not needed in remote mode.), GEMDEX_MODE (Memory backend: embedded local LanceDB or a self-hosted Gemdex Server), LANCEDB_PATH (Directory for the embedded LanceDB store), EMBEDDING_MODEL (Gemini text embedding model), GEMDEX_REMOTE_URL (Gemdex Server root URL (required in remote mode)), GEMDEX_REMOTE_TOKEN (Gemdex Server bearer token (required in remote mode)), GEMDEX_REMOTE_NAME (Human-readable name for the remote server), GEMDEX_TRUST_RANKING (Re-rank recall results by recorded worked/failed/stale outcomes). The author declared them in the registry entry; get the values from the project itself.

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Gemdex — questions

Answers built from our own checks of this server.

Why is there no uptime for Gemdex?
Gemdex runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package gemdex-mcp.
How do I connect Gemdex?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls gemdex-mcp straight from npm; nothing to host, nothing to sign up for.
Is Gemdex open source?
Yes — it is published under the MIT licence, written in TypeScript, 4 stars on GitHub and 5 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.