December 5, 2019
In our attempt to make the internet a safer and more pleasant place, we are introducing a public Telegram bot for Telegram group admins to keep spammers from joining and participating in your conversations.
It is an easy-to-use addition to a group that requires new users who wish to comment in your group to first pass a hCaptcha challenge.
1. Invite the bot to your group and give it admin permissions.
2. Ask the bot to restrict the group. It does not start restricting users until you enable it.
3. New users joining will be asked to solve a hCaptcha before they are allowed to chat.
Check out the supplemental videos below to see the complete workflows.
Join our informal Telegram group to see it in action.
Your patches and contributions to this project are welcome: just open up a pull request on GitHub.
We hope you enjoy this new service!
— the hCaptcha Team