Install WordPress MCP Server in Codex

What you need first

• Codex, installed.
• Node.js, which gives the npx command the server starts with.
• Your own values for YOUR_LOCAL_USERNAME,YOUR_WP_DB_HOST,YOUR_WP_DB_NAME,YOUR_WP_DB_USER,YOUR_WP_DB_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 wp-mcp --env LOCAL_USERNAME=YOUR_LOCAL_USERNAME --env WP_DB_HOST=YOUR_WP_DB_HOST --env WP_DB_NAME=YOUR_WP_DB_NAME --env WP_DB_USER=YOUR_WP_DB_USER --env WP_DB_PASSWORD=YOUR_WP_DB_PASSWORD -- npx -y @rnaga/[email protected] local start

2. Replace YOUR_LOCAL_USERNAME,YOUR_WP_DB_HOST,YOUR_WP_DB_NAME,YOUR_WP_DB_USER,YOUR_WP_DB_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 wp-mcp.

If it does not start

spawn npx ENOENT

Node.js is not on the PATH that Codex sees. Install it, or write the full path of npx in the config.

The server starts, but its tools fail

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