Before working with Telegram’s API, you need to get your own API ID and hash:
Read moreHow do I get a bot API key?
Get a bot’s API key
Read moreCan Telegram bots send messages?
Using your new telegram bot In order to use your new bot to send message you’ll need to add your bot as a group member to the desired Telegram chat . Once that’s completed, you’ll need to reference the chat ID number.
Read moreCan Telegram BOT send message to channel?
You can use bots to send message to channels . But there is some limitation, like size of files.
Read moreHow can I send message to Telegram API?
Getting Started
Read moreIs Telegram API free?
The Telegram API and TDLib allow you to build your own customized Telegram clients. You are welcome to use both APIs free of charge . You can also add Telegram Widgets to your website. Designers are welcome to create Animated Stickers or Custom Themes for Telegram.
Read moreHow do I send message on Telegram?
How to Send a Direct Message on Telegram
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