MATRIX

Multi-Agent Task & Requirement IndeX — A local, project-scoped Requirement Management MCP server for multi-agent, multi-session work. Think of it as a lightweight local project manager, backed by SQLite, that AI agents can connect to via the Model Context Protocol.

Requirements

• Node.js ≥ 22.5.0 — required for the built-in node:sqlite module

Related MCP server: backlog-mcp

Installation & Configuration

MATRIX is project-scoped: each project gets its own .matrix/matrix.db database. The server resolves the DB path relative to its working directory (process.cwd()), so you must set cwd to your project root in your MCP client config.

Claude Desktop

{
  "mcpServers": {
    "matrix": {
      "command": "npx",
      "args": ["-y", "matrix-mcp"],
      "cwd": "/absolute/path/to/your/project"
    }
  }
}

Cursor / VS Code (.cursor/mcp.json or .vscode/mcp.json)

{
  "servers": {
    "matrix": {
      "command": "npx",
      "args": ["-y", "matrix-mcp"],
      "cwd": "${workspaceFolder}"
    }
  }
}

Note: ${workspaceFolder} is expanded by Cursor/VS Code to the workspace root automatically.

Custom DB path

To store the database somewhere other than <project-root>/.matrix/matrix.db, set the MATRIX_DB_PATH environment variable to an absolute path:

{
  "mcpServers": {
    "matrix": {
      "command": "npx",
      "args": ["-y", "matrix-mcp"],
      "env": {
        "MATRIX_DB_PATH": "/absolute/path/to/matrix.db"
      }
    }
  }
}

Human Interface (CLI & Web)

MATRIX also ships a matrix-mcp-cli CLI for humans to browse and manage the database directly.

matrix-mcp-cli --help

matrix-mcp-cli list # lists requirements
matrix-mcp-cli get req-00001
matrix-mcp-cli pick tsk-00001 --agent my-agent
matrix-mcp-cli serve --port 3000

DB path: --matrix-db-path flag > MATRIX_DB_PATH env var > .matrix/matrix.db