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api-mocking
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Industry standard API mocking for JavaScript.
Lightweight service virtualization/ API simulation / API mocking tool for developers and testers
HTTP/1.1, HTTP/2 and WebSockets stub server for stubbing distributed web services in Docker and non-containerized environments for integration and contract testing
Dynamic API, S3 & Mail mocking for web, mobile & microservice development.
Build web applications today against the GraphQL APIs of tomorrow.
A tool that enables you to - Generate fake data in formats like JSON, Python, JS, Ruby, PHP and SQL - Mock restful APIs with Bearer authentication without writing a single line of code with a drag and drop interface.
The first fetch/XMLHttpRequest network-mocking library that's actually user-friendly
Your API mocking tool for OpenAPI and AsyncAPI using Go and JavaScript - https://mokapi.io
Language-agnostic API mocking and testing utility
A versatile Go tool for effortlessly generating mock HTTP APIs for all your needs.
A lightweight, specification-first Go API mock server that generates realistic responses from OpenAPI 3.0 specifications.
Mock Service Worker Tools (MSW-Tools) is a data Mock tool built based on MSW.JS and Svelte. It is used for data linkage between front and back end interfaces, facilitating developers to perform functional tests in different data and scenarios.
Unified data modeling
Demo of how to mock API's in Playwright for e2e testing
Instantly generate mock REST APIs powered by LLMs (GPT/Gemini). Just describe your endpoint—MockGen does the rest. Docker-ready, fast, and open source.
🐙 Multi-armed mocks for LLM apps - Drop-in replacement for OpenAI/Anthropic APIs for deterministic testing
Fully functional API was never an option.
This package allows you to create mock REST API servers for testing and development purposes. It provides a simple and convenient way to define server configurations, handle requests, and send mock responses.
Project template to operate WireMock as a standalone server