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Claude Desktopguide →Vscodeguide →Cursorguide →Windsurfguide →

Midplane

stdio

Safe-by-default SQL guardrails for AI agents: AST-checked queries, per-table policy, audit log.

ai data

Getting Started

npx @getmcp/cli add ai.midplane/midplane

Requires Node.js 18+. Community-contributed server. Review source before installing.

Required Environment Variables

DATABASE_URL
Postgres connection string the agent's queries run against. Give it a least-privilege role: Midplane constrains what SQL is allowed, it does not widen or narrow what the role itself can reach.

Configuration

Config file: ~/Library/Application Support/Claude/claude_desktop_config.json

JSON

{
  "mcpServers": {
    "ai.midplane/midplane": {
      "command": "npx",
      "args": [
        "-y",
        "midplane",
        "server"
      ],
      "env": {
        "DATABASE_URL": "",
        "MIDPLANE_POLICY_FILE": "",
        "DB_PATH": "",
        "MIDPLANE_TELEMETRY": "1"
      }
    }
  }
}

Claude Desktop MCP documentation

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