[Как написать Telegram бота на C#?](https://habr.com/ru/articles/756814/) - [Telegram Bot API](https://core.telegram.org/bots/api) - [Telegram Bot Features](https://core.telegram.org/bots/features) - [Bot Payments API for Digital Goods and Services](https://core.telegram.org/bots/payments-stars#step-by-step-process) - [Кнопки в Телеграм-ботах](https://handbook.tmat.me/ru/messages/buttons)