In the Codex app, go to “Settings”.

Then go to “MCP Servers” and click “Add Server”.

Then name the MCP "AdLabs” and add the MCP URL.
MCP URL: https://mcp.adlabs.app

The AdLabs app will open. Click “Allow” to authorize the access.

That’s it! Now you can query your AdLabs data from within ChatGPT (Codex).