Repository Index

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

• mock
• server
• rest-api
• rest

A tool for mocking HTTP services

• wiremock
• json
• mocking
• stubbing

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

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

🔮 Proxies nodejs require in order to allow overriding dependencies during testing.

🎲 Mock or extend your GraphQL API with faked data. No coding required.

• graphql
• idl
• faked-data
• mock

Lightweight service virtualization/ API simulation / API mocking tool for developers and testers

• api-simulation
• golang
• proxy
• mitm

vfsStream is a stream wrapper for a virtual file system that may be helpful in unit tests to mock the real file system. It can be used with any unit test framework, like PHPUnit or SimpleTest.

• vfsstream
• php
• testing
• filesystem

Mocks and explicit contracts in Elixir

Mock Alamofire and URLSession requests without touching your code implementation

• wt-branch-protection-two-approvals
• wt-branch-protection-exempt

Replace any .NET method (including static and non-virtual) with a delegate

• testing
• testing-framework
• isolation-framework
• dotnet

Bypass provides a quick way to create a custom plug that can be put in place instead of an actual HTTP server to return prebaked responses to client requests.

• testing
• http
• https
• mock

HTTP request/response recording library for elixir, inspired by VCR.

Mocking library for Elixir language

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

• api
• devtools
• mock
• mocking

Betamax is a tool for mocking external HTTP resources such as web services and REST APIs in your tests. The project was inspired by the VCR library for Ruby.

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

Ergonomic Mocking for Elixir

HTTP mock for Golang: record and replay HTTP/HTTPS interactions for offline testing

• vcr
• http
• playback
• mock

Simplify software testing, by easily mocking any system using HTTP/HTTPS, allowing a team to test and develop against a service that is not complete or is unstable or just to reproduce planned/edge cases.

• mock
• stub
• proxy
• proxy-server

Java binding for Hoverfly

• api-simulation
• service-virtualization
• java
• testing

SMTP mock server written on Golang. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.

• smtp
• smtp-mock
• smtp-server
• smtp-mail

High-performance, multi-protocol mock server. HTTP, WebSocket, gRPC, MQTT, SSE, GraphQL, SOAP in one binary.

• api-mocking
• cli
• developer-tools
• golang

A simple mocking framework for Swift, inspired by the famous http://mockito.org/

• mocking-framework
• mockit
• swift

A library to declaratively write testable effects