api-testing

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.

APIs REST simulando loja virtual para servir de estudo de testes de API de forma manual ou automatizada

A simple and extensible behavioural testing library for Go. You can use api test to simplify REST API, HTTP handler and e2e tests.

Simulate API failures, throttling, and chaos — all from your command line.

:boom: Test REST, GraphQL APIs

The first open-source AI-driven tool for automatically generating system-level test cases (also known as fuzzing) for web/enterprise applications. Currently targeting whitebox and blackbox testing of Web APIs, like REST, GraphQL and RPC (e.g., gRPC and Thrift).

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

An API testing tool with support for HTTP/2 and HTTP/3. Alternative to Postman.

runn is a package/tool for running operations following a scenario.

REST API Testing Tool for all levels in a Test Pyramid

Awesome API Clients & Postman Alternatives (Open Source, Free, Pro)

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

Lightweight Java agent for traffic capture and replay, enhancing testing and debugging.