A long-serving bouncer for group chats that takes a minute to set up. Stops spam bots at the door, not human spammers.
Spam accounts tend to flood open groups in waves, each one posting about easy money or crypto. Shieldy puts a gate at the entrance: every newcomer has to pass a check or gets removed when the timer runs out. There are four check types: type anything, enter digits, press a button, or read text from an image.
Everything is configured with commands inside the group. You can change the time limit, restrict newcomers to text-only messages for their first day, delete join notifications, greet people who pass, and block channel links. There's an under-attack mode for bot raids and a lookup against a shared database of known spammers. The bot's language can be switched, including Russian and Ukrainian.
We like that Shieldy is open source under the MIT licence, so you can read the code or run your own copy. The repository is now maintained by the 1inch team and saw updates as recently as 2026.
The honest limit: a captcha stops automated accounts, not a person who joins by hand and starts spamming later. For that you still need moderators or stricter rules.
Toca una estrella; puedes cambiar tu voto cuando quieras.
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