Install WhatsApp MCP Server in Codex

What you need first

• Codex, installed.
• uv, which gives the uvx command the server starts with.
• Your own values for YOUR_META_ACCESS_TOKEN,YOUR_META_WABA_ID,YOUR_META_PHONE_NUMBER_ID.

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 whatsapp-mcp --env META_ACCESS_TOKEN=YOUR_META_ACCESS_TOKEN --env META_WABA_ID=YOUR_META_WABA_ID --env META_PHONE_NUMBER_ID=YOUR_META_PHONE_NUMBER_ID -- uvx jina-whatsapp-mcp==0.1.0

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

Check it worked

Ask Codex: List the tools of whatsapp-mcp.

If it does not start

spawn uvx ENOENT

uv is not on the PATH that Codex sees. Install it, or write the full path of uvx in the config.

The server starts, but its tools fail

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