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Gemini CLI

festo codesys mcp for Gemini CLI

io.github.efranceschetti/festo-codesys-mcp

MCP server for Festo/CODESYS PLCs: IEC 61131-3 ST + validated PLCopen XML generation.

client:Gemini CLI transport:stdio runtime:npm

Install festo codesys mcp in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "festo-codesys-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "festo-codesys-mcp"
      ],
      "env": {
        "FESTO_MCP_CODESYS_PATH": "<FESTO_MCP_CODESYS_PATH>",
        "FESTO_MCP_CODESYS_PROFILE": "<FESTO_MCP_CODESYS_PROFILE>",
        "FESTO_MCP_PYTHON": "<FESTO_MCP_PYTHON>",
        "FESTO_MCP_ENABLE_HARDWARE": "<FESTO_MCP_ENABLE_HARDWARE>",
        "FESTO_MCP_ALLOW_OUTSIDE_WORKSPACE": "<FESTO_MCP_ALLOW_OUTSIDE_WORKSPACE>"
      }
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

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