# Overcast web console

> The browser UI bundled with Overcast, served on port 4567 beside the API on 4566.

It shows what your app actually created rather than what it asked for: a browser for every emulated service, an inbox holding captured mail, a live event stream, request traces, and a topology map of the resources in the running emulator.

There is nothing to install — it ships inside the image and starts with the emulator. The feature reference is at https://overcast.sh/docs/reference/index.md. The traces view needs `OVERCAST_DEBUG=true`, covered at https://overcast.sh/docs/debug-endpoints/index.md.