
Description: MockServer is an open source simulator for APIs and services to provide fake responses during testing and development. It allows developers to mock external dependencies for faster testing without requiring real services or networks.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: WireMock is an open source tool for simulating HTTP-based APIs during development. It enables mocking and stubbing of APIs and servers before they are fully developed to enable faster testing of applications that integrate with them.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API