Repository Index

TranslatedYApi is a visual API management platform that can be deployed locally and connects front-end, back-end, and QA

• api
• api-manager
• api-management
• api-test

Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.

• testing
• test-automation
• api-testing
• testing-tools

Mockery is a simple yet flexible PHP mock object framework for use in unit testing with PHPUnit, PHPSpec or any other testing framework. Its core goal is to offer a test double framework with a succinct API capable of clearly defining all possible object operations and interactions using a human readable Domain Specific Language (DSL).

• mockery
• phpunit
• php
• stub

A client-side server to build, test and share your JavaScript app

• testing
• mock
• database
• testing-tools

:wrench: Utility library for GraphQL to build, stitch and mock GraphQL schemas in the SDL-first approach

• graphql-schema
• schema-language
• graphql
• graphql-api

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

• mock-server
• proxy
• java-client
• javascript-client

GoMock is a mocking framework for the Go programming language.

:heavy_check_mark: PHP Test Framework for Freedom, Truth, and Justice

• php
• bdd
• test
• tdd

Powerful mock generation tool for Go programming language

Mocking library for Elixir language

Aioresponses is a helper for mock/fake web requests in python aiohttp package.

• aiohttp
• test
• mocking
• asyncio

In-page HTTP controller for frontend development. Intercept, modify, and simulate API responses directly in the browser.

• api
• devtools
• mock
• mocking

All-in-one go testing library

• go
• golang
• instrumentation
• mock

Shift-left API Integration | Auto-fix integration drift before integration. Specmatic turns API specifications into executable contracts, continuously verifying that every change made by AI coding agents and engineers stays true to the desired behaviour. Ship AI-ready APIs 10x faster, from intent to implementation, with Spec-Driven API Development.

• contract-testing
• microservices
• contract-driven-development
• cdd

a socket mock framework - for all kinds of socket animals, web-clients included

• python
• testing
• mock
• socket

A Open Source Mocking framework for Delphi XE2 or later

• delphi
• mocking-framework
• dpmpackage

Mockbin by Zuplo. Mock, Test, and View HTTP Requests and Responses

• api-client
• api-management
• api-mock
• api-test

Mock an SSH server and define all commands it supports (Python, Twisted)

• mock
• ssh
• python
• hylang

Advanced unit test framework for D

• testing
• unittest
• unit-testing
• property-based-testing

TestBox is a cutting-edge testing and mocking framework for the BoxLang JVM language and ColdFusion (CFML), built on Behavior-Driven Development (BDD) to offer a clear and intuitive syntax for writing tests.

• bdd
• tdd
• testing
• mocking

A test-friendly replacement for golang's time package [managed by soy-programador]

A simple Elixir package to elegantly mock module functions within (asynchronous) ExUnit tests using Erlang's :meck library

• elixir
• mocking
• exunit
• meck

AutoMocker is a Swift framework that leverages the type system to let you easily create mocked instances of your data types.

Open-source simulation harness for testing AI agents. Simulate LLM and tool calls to test edge cases, failure paths, and agent logic without live API calls.

• ai-agents
• ai-testing
• llm
• llm-evaluation