Diagrams.so

Package (npm 1.4.6)

npx -y @diagrams-so/[email protected]

Or add to your MCP client config:

{
  "mcpServers": {
    "diagrams-mcp-app-core": {
      "command": "npx",
      "args": [
        "-y",
        "@diagrams-so/[email protected]"
      ],
      "env": {
        "DIAGRAMS_API_KEY": "<YOUR_VALUE>",
        "DIAGRAMS_API_BASE": "<YOUR_VALUE>",
        "DIAGRAMS_API_TIMEOUT_MS": "<YOUR_VALUE>"
      }
    }
  }
}

• DIAGRAMS_API_KEY secret — Diagrams.so API key (dgz_live_... or dgz_test_...). Optional since 1.4.0: run `npx @diagrams-so/mcp login` once instead. Or create a key at https://diagrams.so under Settings then AI Provider.
• DIAGRAMS_API_BASE — API base URL. Defaults to production; override only for a local or self-hosted API.
• DIAGRAMS_API_TIMEOUT_MS — Per-request timeout in milliseconds for slow generate/edit/fix calls.