Top 2 gupshup open source projects

Simple SMS Gateway Package for sending short text messages from your Application. Facade for Laravel 5(Updated to work with Laravel 5.5).Currently supported Gateways Clickatell, MVaayoo, Gupshup, SmsAchariya, SmsCountry, SmsLane, Nexmo, Mocker / Any HTTP/s based Gateways are supported by Custom Gateway. Log gateway can be used for testing.

Is a pretty simple and fully asynchronous framework for WhatsApp Business API written in Python 3.7 with asyncio and aiohttp.