
Description: GraphQLZero is an open-source GraphQL API mocking tool and server. It allows developers to quickly mock GraphQL APIs for testing and prototyping purposes without needing to write a real production API.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GraphQL Editor is an open-source, browser-based IDE for building GraphQL APIs. It allows you to write and validate GraphQL schemas, build queries, mutations and subscriptions, explore schema documentation, and more. It's great for quickly mocking up GraphQL servers.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API