This script checks for free TestFlight slots for a given list of apps. It calls a callback function when new slots become available and (optionally) when they run out.
This repo includes, as an example, a Telegram bot which uses TestFlight watcher and sends notification messages.
The telegram_bot.py script takes a comma-separated list of app IDs as an argument.
./telegram_bot.py ID1,ID2,ID3
where ID1, ID2, ID3 are the 8-character
app IDs you can find at the end of the TestFlight URL. If your URL is https://testflight.apple.com/join/ABCDEFGH, your ID is ABCDEFGH.