Developer Madspectator (@madspectator) on Telegram develops bots to help manage the chat groups and one bot to help follow cryptocurrencies prices.

@daysandybox_bot : This is anti-spam bot that deletes messages posted with a link or @username posted by those who joined the group in the last 24hrs.

@nosticker_bot : This bot deletes stickers posted in the group.

@joinhinder_bot : This deletes the messages about user joinng/leaving the group.

@coinsignal_robot : This notifies when the price of specific coin reaches the level you have set, also you can use this bot just to see price of coins.