Open source API development ecosystem - https://hoppscotch.io (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.

Local-first Developer Tool to Build, Test, Intercept & Mock API Requests. Requestly is a combination of REST API Client and HTTP Interceptor. It is simple, beautiful and powerful alternative to Postman, Insomnia, Bruno and Charles Proxy.

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 next generation, full-stack acceptance testing framework optimised for collaboration, speed and 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

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

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

This is a sample Automation project using Playwright and Typescript

Declarative API testing

UI for Keploy platform that does API testing by dependency mocking without writing any test cases.

VSCode Extension for Karate

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

Observable Integration Testing using OpenTelemetry on top of Jest/Playwright/Cypress.

This is a sample test automation framework developed using Playwright with Cucumber

Postmaiden is an application for testing and documenting HTTP APIs