Install Comunio in Codex

What you need first

• Codex, installed.
• Docker, which gives the docker command the server starts with.
• Your own values for YOUR_COMUNIO_USERNAME,YOUR_COMUNIO_PASSWORD.

Steps

1. Run this in a terminal. It writes the server into ~/.codex/config.toml, which the Codex CLI, its IDE extension and the ChatGPT desktop app share.

codex mcp add comunio --env COMUNIO_USERNAME=YOUR_COMUNIO_USERNAME --env COMUNIO_PASSWORD=YOUR_COMUNIO_PASSWORD -- docker run -i --rm -e COMUNIO_USERNAME -e COMUNIO_PASSWORD ghcr.io/josetorronteras/comunio-mcp:1.0.2

2. Replace YOUR_COMUNIO_USERNAME,YOUR_COMUNIO_PASSWORD with your own values.
3. Start Codex again and type /mcp: the server is listed.

Check it worked

Ask Codex: List the tools of comunio.

If it does not start

Cannot connect to the Docker daemon

Docker is not running. Start it, then restart Codex.

The server starts, but its tools fail

A YOUR_… placeholder is still in the config, or its value is wrong.