
Telegram Watchdog
@watchdogverifybot
34,363 monthly active users
Verifies new group members with a CAPTCHA and keeps spam bots out automatically.
Description
What this bot does
Telegram Watchdog guards group chats from automated spam accounts. When someone new joins, the bot asks them to pass a CAPTCHA check, and accounts that fail it never get to post. Everything runs automatically once the bot has admin rights, so moderators do not have to watch the join feed themselves.
Features
- 🐶 CAPTCHA verification — every new member is challenged before being allowed to write in the chat.
- 🚫 Automatic spam-bot blocking — accounts that do not pass verification are stopped without manual moderation.
- ⚙️ Set-and-forget setup — a single admin promotion is enough to start protecting the group.
- 🔓 Open source — the project's code and help pages are published on GitHub, with a community chat for questions.
How to use
- Start the bot in a private chat.
- Press Set me as group admin and pick the group you want to protect.
- Grant the admin rights needed to restrict and remove members.
- New joiners will now be asked to pass the CAPTCHA automatically.
Added on September 11, 2026