Sheetsu - Turn Google Spreadsheet into API
Mock API Generator - Generate custom data & API to build apps in less than 30s
Sheety - Turn any Google sheet into an API instantly, for free. Power websites, apps, or whatever you like, all from a spreadsheet. Changes to your spreadsheet update your API in realtime. Neat
grepQL - GraphQL IDE - Generates every queries from the schema
API Castor - Convert your CSV Files to API endpoints for friction-less sharing.
Stellate.co - Everything you need to run your GraphQL API at scale