api-testing

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

A payment application to demonstrate real-world usage of Cypress testing methods, patterns, and workflows.

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.

Automated API Testing and Quality Assurance

🔥 GUI client for gRPC/gRPC-Web

Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽‍🚀

A TypeScript-native acceptance testing framework that gives your Playwright Test, WebdriverIO, or Cucumber test suite the architecture it needs to scale.

A text-based HTTP client in the browser. An interface-less Postman.

Visual Studio Code extension to create and test simple and complex HTTP/s requests

Postman MCP Server — connect AI agents (Claude Code, Cursor, VS Code Copilot, Gemini CLI) to your Postman collections, OpenAPI specs, and environments via Model Context Protocol (MCP)

Node.js SDK for capturing and replaying API calls made to/from your service

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

This is a sample Automation project using Playwright and Typescript

Local-first desktop API client built for developers and AI agents

Apitest is declarative api testing tool with JSON-like DSL.

A CLI tool to convert an OpenAPI schema to a TypeScript client to use with k6.

AI 驱动的可视化 API 测试编排平台 | 自然语言秒变测试流程 | 可视化拖拽编排 | 零代码测试自动化 | 智能 API 采集 + AI 生成测试用例/AI-Powered Visual API Test Orchestration - Transform natural language into test flows | Drag & drop | Zero-code | Smart capture

Your Enterprise DevToolkit. API Client. Browser Interceptor. Team Collaboration.

Tusk Drift Demo - Node.js Service

Yasumu is a modern, free and open-source API laboratory for designing and testing API workflows