Run these commands in your terminal (Terminal on a Mac, PowerShell or Windows Terminal on Windows), not in a chat. They need the Codex CLI installed: Codex setup guide (opens in a new tab).

1. 1

   Step 1: Check what’s already set up

   $ codex mcp listCopy

   If modlethub is listed with https://modlethub.com/api/mcp, skip to step 3.

   If it shows a different address, remove it first, then continue:

   $ codex mcp remove modlethubCopy
2. 2

   Step 2: Add ModletHub

   $ codex mcp add modlethub --url https://modlethub.com/api/mcpCopy

   Your browser opens ModletHub. Sign in, review the requested access and choose Allow connection.

3. 3

   Step 3: Check it’s connected

   $ codex mcp listCopy

   modlethub is listed. If the browser didn’t open, run codex mcp login modlethub. If sign-in shows an error, run codex mcp login modlethub --oauth-client-registration dcr.