Local credit usage tracker for Comfy.org API nodes (stopgap until #13244)

[matokokles-rgb]

What it is

If you use several paid API nodes (Kling, Seedance, Gemini image, Veo...) in
the same ComfyUI session, it's easy to lose track of how many credits
you're burning through until you check Settings → Credits. I put together a
small local tool that runs alongside ComfyUI and shows a live table of
usage (date, model, credits spent, running balance) in its own desktop
window.

How it works

It has three data sources: your local ComfyUI run history (/history, a
rough estimate based on a price table you fill in), manually logged
top-ups, and — most accurately — the same internal API the Credits page
itself uses (api.comfy.org/customers/balance and .../customers/events).

The catch

That last one isn't an official API — there isn't one yet (see #13244,
which I'd love to see resolved properly). This tool just replays the same
request your browser already makes under your own session, using a token
you copy out of DevTools yourself. It's a stopgap, not a real solution —
happy to retire this the day there's an actual documented endpoint.

Code

https://github.com/matokokles-rgb/comfy-credit-tracker — MIT licensed, pure
Python standard library (no dependencies), Windows launcher included but
the two scripts run fine on any OS. Contributions welcome, especially
around automatic token refresh (currently the token expires after ~1 hour
and needs to be recopied manually) and non-Windows launcher scripts.

Figured others hitting the same "wait, where did my credits go" feeling
might find it useful, and that a working example might help make the case
for #13244.