Telegram API - We offer two kinds of APIs for developers. The Bot API allows you to easily create programs that use Telegram messages for…
TDLib - Build your own Telegram
TapTalk.io - TapTalk.io is a complete in-app chat SDK and messaging API - Easy integration and customizeable.
Telegram bot API - The Bot API allows you to easily create programs that use Telegram messages for an interface.
WeChat API - WeChat API and SDK allow developers to access and integrate the functionality of WeChat with other applications.
ResizePixel - Free image editor to crop, resize, flip, rotate and convert images online