Communication Platform

https://www.twilio.com/

https://www.messagebird.com/en/ 

WeChat

https://open.weixin.qq.com/?lang=en 

https://smooch.io/integrations/wechat/

https://www.npmjs.com/package/messaging-api-wechat

https://github.com/node-webot/wechat-api

https://medium.com/le-wagon/a-video-to-help-new-developers-get-started-on-wechat-advanced-mode-apis-54638debbcfc