restdb.io - restdb.io lets you create databases and REST APIs quickly. Development databases are free. Powerful web-based and mobile-friendly data management.
BotList - An app store for bots
NLSQL Bot - A smart sales bot that's integrated with your database
ManyChat - ManyChat lets you create a Facebook Messenger bot for marketing, sales and support.
Sheetsu - Turn Google Spreadsheet into API
Chatbot Templates - 50+ bot templates you can use in one click