Amio Messaging SDK - Develop for multiple messengers using JavaScript
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Notif.me SDK - A Node.js lib to send all your transactional notifications
CloudBoost.io - One Complete Database Service that does data-storage, search,real-time and a whole lot more.
Postman for Mac (Beta) - Build, test, and document your APIs faster
Supabase - An open source Firebase alternative