JSPM

OpenAPI 3 mock server. Validates SDKs against OpenAPI specs with clear error attribution.

Run and Test HTTP Requests with plain text and curl

Cypress test generator plugin for Kubb, creating end-to-end tests from OpenAPI specifications for automated API testing.

Official Postman CLI - Command-line companion for API development, testing, and automation

memory package for @qavajs framework

Concise support for mock requests in IcedFrisby

A node.js module for running load tests and functional tests on loadmill.com

The most complete MCP server for API testing. 35 tools: HTTP requests, assertions, request flows, OpenAPI import, mock data, load testing, collections, environments, native export/import, Postman import/export, cURL export, response diffing. Zero config,

Playwright test analytics reporter with E2E navigation tracking, API call capture, network stats, failure diagnostics, and interactive HTML reports

Parser adapter for parsing YAML documents into Arazzo 1.x.y namespace.

CLI tool to lint JavaScript pre-request and test scripts in Postman collections using ESLint

Parser adapter for parsing JSON documents into Arazzo 1.x.y namespace.

Arazzo Specification 1.0.1 namespace for ApiDOM.

A beautiful Playwright HTML reporter with BDD/Gherkin annotations, AI-powered failure analysis, self-healing suggestions, Jira/Xray integration, inline API request/response display, manual test support, and screenshot/video evidence in test executions.

Security CLI for developers: scan npm/pip/cargo installs for CVEs before execution, self-hosted reverse proxy WAF with TUI, and API flow security testing across 14 ecosystems.

CLI companion for Supatester

Solution for two Cypress testing use-cases I came across with: perform a direct http FORM request to the server containing a file and other parameters and upload a file into a form before submission

Migrate Postman collections to a fully typed, runnable Playwright API test monorepo

Tiny API Test — a JSON-driven API testing CLI powered by @nanotiny/json-expression

qavajs framework core

CLI tool that validates whether OpenAPI 3.x endpoints are executable — checks reachability and classifies each endpoint by HTTP response

High-performance distributed API stress testing platform for Express.js APIs — simulate up to 10M concurrent virtual users

Ultra-lightweight API tester exposed as MCP tools — JSON in, structured response out

A Model Context Protocol (MCP) server for Postman API integration, providing tools for workspace, collection, request, environment, folder, and mock server management with AI-powered features

MCP Server for democratizing quality through browser automation and comprehensive API testing capabilities

AI-powered test generation and execution platform. Scan features, generate tests, run them — one command.

api steps for @qavajs project

AI-powered QA testing prompts for any agent — Claude, Cursor, Copilot, Windsurf, ChatGPT, and more

Write Postman collections as code. Full IntelliSense, imports/exports, auto-looping, TypeScript support. Compile and run API tests from the terminal.

A developer tool for creating and simulating Fake APIs (FAPIs) in seconds.

MCP server for capturing HTTP traffic using headless Playwright browser automation

Prove your API handles concurrent requests correctly. Catch race conditions before production.

Record real API responses as test fixtures. Auto-generate types, MSW handlers, and detect API drift.

API testing framework with built-in governance and security checks

MCP Server for running Postman collections using Newman

Standardized testing utilities for TE Code ecosystem

Turn any OpenAPI spec into a live developer portal with a stateful sandbox

Reqly CLI — tunnel webhooks to your local dev server

MCP Server for Swagger/OpenAPI documentation and API testing

Self-hosted CORS proxy for OpenAPI Studio — execute API requests server-side bypassing CORS, with timing breakdowns, size metrics, and seamless PKCE OAuth login. Token stored automatically in ~/.oas/config.json.

Soak test CLI for APIs. Hits endpoints at intervals for hours, logs results to SQLite, fails CI on threshold breaches.

Shared TypeScript types for Automation Testing Platform

A WebdriverIO runner for API automation testing without browser sessions

CLI for managing isolated Kubernetes sandboxes for microservice testing

自动化测试 Skills - 支持 Claude Code 和 Cursor，一键配置 Playwright 环境

API testing and documentation tools for Claude Code — test endpoints, parse OpenAPI specs, generate clients and tests

HTTP protocol for Aver acceptance testing

UI for Validra — AI-powered API test generation and validation

Local proxy for testing localhost APIs from Outworx Docs. Bypasses CORS restrictions so you can use the Try It playground with your local dev server.

A powerful library for comparing JSON objects with support for deep comparison, regex validation, and customizable options

Standalone Postman generator - creates Postman collections and environment variables from OpenAPI specs for API testing and development.

MCP server for managing Apidog test cases, scenarios, suites, and test data

Multi-agent adversarial API testing CLI. 3 agents, 3 oracle layers, every bug gets a curl command.

Dino CLI — autonomous API quality scanner. Scan, document, diff, lint, and monitor your APIs.

E2E Test Runner - End-to-End Testing Framework for API and Database Testing

Headless REST & GraphQL API client — collections, environments, mock servers, MCP servers, vault, and license management. No UI, no VS Code dependency.

MCP server for Bruno CLI integration - Execute API tests through Model Context Protocol

Fast & Beautiful CLI API Testing Tool

AI-powered E2E integration tester via MCP — analyzes microservices, tests APIs, crawls frontends with Playwright

A fast, modern HTTP client CLI with load testing and flow runner

MCP Server Tester with SSE support - Test MCP servers using HTTP, SSE, and STDIO transports

基于 axios 的 HTTP 客户端工厂 - 支持 JSON 配置驱动、自动认证、API 测试

FlowTest plugin for NestJS — auto-discovers routes and connects your app to FlowTest

🚀 Generate beautiful, interactive API documentation for Node.js/Express applications with zero configuration. Features include password protection, custom branding, responsive design, and easy integration. Perfect for REST APIs, microservices, and web ap

MCP server for Artillery load testing

Mock Http - Easy way to mock http with httpbin replacement

Create instant REST APIs from JSON. No signup required.

Execute JetBrains-style .http files programmatically with axios — supports request chaining, JS handlers, variables, imports, and environments

A Node.js CLI tool to measure test coverage of Swagger/OpenAPI specs using Postman collections or Newman run reports. Features smart endpoint mapping with intelligent status code prioritization and enhanced path matching.

MCP Server for comprehensive AI-powered API testing from OpenAPI specifications

OpenAPI spec parsing, test generation, live endpoint testing, and response validation

HTTP request parsing, execution, and testing. Define requests in .http files, test them in isolation.

Interview-driven, research-first API development toolkit with 14-phase TDD workflow, enforcement hooks, and 23 Agent Skills for cross-platform AI agents

n8n community node for the Postman API

Postman Extended Runner

Zero-maintenance contract testing: auto-generates Pact contracts from real traffic, catches data-level regressions, manages service dependencies, and integrates into any CI/CD pipeline.

QA and testing skills for Cursor IDE: TDD, systematic debugging, code review, verification, API spec generation, Postman test suites, and Playwright UI testing

API testing CLI for .http files - run requests, automate checks, and serve test workflows

Auto-generating Postman-like UI for Express applications

MCP Server for running Bruno Collections

Lightweight Playwright MCP automation - zero config, works with all AI IDEs

Lightweight npm package for seamless CORS management through the CORS Unlocker browser extension. Perfect for API testing and cross-origin development.

🔥 Generate Postman collections automatically from Hono + Zod routes.

Core test utilities for enterprise testing - async helpers, builders, fixtures, mocks, and more

A fast, zero-dependency CLI tool for testing REST APIs from the terminal. Pretty-prints JSON, shows status codes, response times, and headers.

MCP assistant for helping AI coding agents write better Rocketship tests

Postman for MCP Servers - A fast, lightweight testing tool with full OAuth 2.1 support

Generate OpenAPI/Swagger documentation from your Jest API tests

MCP Server for running Bruno Collections

AI-powered personal development and network security agent with API testing and CVE database integration

A simple rest api testing package. Crafted with easy to use method call and method chaining, so you can write clean api testing automation scripts in javascript and typescript.

A flexible JSON schema validation library for API testing with automatic schema generation and synchronous/asynchronous validation support. Perfect for Bruno API client and automated testing.

LangGraph Multi-Agent Automated Testing Suite for Node.js/TypeScript — 8 AI agents that analyze, test, review, secure & document your project. OWASP Top 10, Zero-Day scanning, 100+ vulnerability patterns.

Multi-language MCP server for API testing with TypeScript/Playwright, JavaScript/Jest, Python/pytest support

Record real API responses and replay them as a mock server. Proxy, save, edit, diff, and generate TypeScript types from API recordings.

OpenAPI test coverage analysis based on the A-TEST '19 coverage criteria (TCL 0-7). Records HTTP traffic, computes coverage against an OpenAPI spec, and reports results.

Webhook infrastructure, not just a tunnel. Captures every request, replay to localhost or production.

GeekyAnts Testing Boilerplate

An MCP server that generates comprehensive API test plans (positive, negative, edge cases) from endpoint metadata.

CLI for ToolRelay — validate configs, serve local MCP servers, and deploy to production with audit traces

MCP server for HTTP API testing with Playwright. Supports full CRUD operations, path/query parameters, and comprehensive error handling for API automation workflows.

TypeScript SDK for the t-req HTTP testing server

Visual API flow testing tool. Build flows, chain requests, test assertions. Local-first, git-friendly, open source.

MCP server for generating comprehensive test scenarios from OpenAPI specifications

Visual test automation tool with Blockly - API and Playwright testing

CLI tool to convert YAAK files to Postman

Automatically discover APIs and generate complete integration packages: code in 12 languages, TypeScript types, test suites, SDK packages, API documentation, mock servers, performance reports, and contract tests. Saves 2-4 weeks of work in seconds.

A helper for contract testing using newman

framework for test automation using selenium with gherkin support

Self-hosted tunneling server - High-performance tunnel server for cgrok. Open-source ngrok alternative server with custom domains. Pair with @crisego/cgrok for complete self-hosted solution.

Unified testing framework for test specification files (.tcase)

A beautifully simple yet powerful API testing framework built to tackle the most complex challenges with ease

AI-powered load testing CLI tool using natural language commands. Convert plain English test descriptions into K6 load test scripts.

CLI for @boolesai/tspec testing framework

Enterprise-grade CLI tool to run Postman collections with Newman, collect metrics, generate beautiful HTML reports with interactive charts, and send Telegram notifications. Production-ready with security hardening.

Vitest test helpers with framework-specific utilities - setup, browser testing, benchmarks, and migration tools

Declarative API testing powered by YAML flows. Replace Postman with version-controlled, AI-friendly test definitions.

A modern, terminal-based API testing and development tool with a clean TUI (Text User Interface). Postboy helps you design, test, and debug HTTP requests efficiently, all from your terminal.

Next-generation contract testing suite

简化版API测试MCP服务器 - 专为Cursor设计的API接口测试工具

A composable, pipeline-based testing framework for AI systems and APIs with semantic validation

MCP server for Swagger/OpenAPI with dynamic source support

Declarative API testing that is fast and simple

TanStack DevTools plugin for API stress testing and performance monitoring

A Node.js application with Express and Newman for running and debugging Postman collections

Shared prompt templates for teams

CLI tool for HooksDash - Inspect, debug, and forward webhooks to your local development environment

Boilerplate generator for API Testing from Swagger to Cypress

智能Apifox MCP中转服务器 - 支持多项目、智能缓存、团队协作

Load testing CLI + React UI with live analytics

A modern package for generating mock data for testing and development

ReAPI CLI tool for running API tests and managing test deployments

CLI tool and library for generating TypeScript API test skeletons from Postman collections. Automatically detects architecture patterns and creates production-ready test files.

MCP server for running Postman collections with Newman

A lightweight, fluent TypeScript API testing library inspired by Java's RestAssured. Built on top of Axios, JSONPath, and Joi for powerful request handling and response validation.

Self-hosted tunneling client - CLI tool to expose local servers through your own cgrok-server. Open-source ngrok alternative with custom domains. Pair with cgrok-server for complete self-hosted solution.

Make your localhost publicly accessible with optional custom authentication through tunneling

Comprehensive testing framework for Microsoft Power Platform with Playwright - includes Page Object Models, test fixtures, API testing, accessibility testing, and authentication utilities for Power Apps, Dataverse, and Power Platform applications

Local HTTP proxy for mocking, intercepting and delaying API calls. Import OpenAPI/Swagger specs and control every endpoint from a browser UI — no code changes needed.

CLI tool to benchmark HTTP endpoints with concurrent requests, latency percentiles, and HTML reports

Playwright testing utilities for Shopware 6 plugins with API testing, admin automation

AI-powered CLI testing tool for npm packages with Docker isolation, private package support, and automated test generation using Claude, GPT-4, Gemini

Klike CLI — run tests, manage campaigns, interactive sessions

MCP server for dump.xoozoo.com webhook capture service - allows AI assistants to create endpoints, view requests, and replay webhooks

A command line interface to run your apic tests

Curated, token-efficient QA documentation for AI coding agents

Core library for Apicize tools - TypeScript types, utilities, and runtime support for API testing

HTTP/HTTPS protocol plugin for TSpec

Jest unit and integration test helpers for enterprise testing - mocks, fixtures, matchers, and more

Wraps Bruno CLI and exposes an observable execution lifecycle for external integrations.

Plugin Insomnia para gerar Dados Falsos realistas para testes de APIs brasileiras

RestAssure is a TypeScript library designed to simplify and streamline the process of writing tests for your REST APIs. By providing a fluent and intuitive interface for sending HTTP requests and asserting responses, RestAssure makes it easier to ensure y

AI-powered code guardian using Claude for framework-agnostic code review, security analysis, and API testing

Generate API test automation setup from Swagger/OpenAPI specifications using Playwright. Configure your Swagger file path and generate tests on demand.

MCP server for comprehensive Laravel API testing - security, validation, Query Builder, and ApiResponse verification for AI-assisted development

Runtime API security that catches vulnerabilities as they happen. Zero-config security proxy for developers.

CLI tools for working with .apicize API test files - convert between .apicize and TypeScript/Mocha/Chai tests

A TypeScript library for performance testing MCP (Model Context Protocol) servers with concurrent testing, load testing, and comprehensive metrics analysis.

Newman runner for Postman collections with Oracle DB query support

A CLI tool for importing and exporting collections in the Thunder Client VS Code extension.

A stateful HTTP client for NodeJS. Test your routes even when mocking is infeasible.

自動化 Postman collection 與 OpenAPI 規格同步工具

API testing module to validate the functionality, reliability, and performance of RESTful APIs by automating request and response verification.

An MCP server that provides Postman-like API testing capabilities for AI agents.

MCP server for API testing - manage API docs, credentials, and make API calls

MCP Server for running Postman collections using Newman

Angular Json schema builder for apic

TSTAI - AI-powered natural language API testing CLI with custom API key authentication. Write tests in plain English and run them via CLI.

An express mock api server for testing purposes

Cypress testing framework starter - Professional test automation framework template with comprehensive structure, documentation, and best practices

CLI based tool to test all your APIs. Written in golang to offer you best performances

Tiny HTTP/HTTPS API-testing REPL

Fetch-inspired declarative API testing framework

ThunderBench - 高性能API性能测试工具核心引擎

Dynamic load testing tool with screenshot comparison, visual-text validation, and intelligent version comparison using K6, Puppeteer, and Sharp

Description: Comprehensive testing library for API testing, system monitoring, and step execution tracking

The lightweight HTTP interception library built for modern Node.js testing. MSW-inspired simplicity meets native `fetch` performance.

Tly - AI-powered natural language API testing CLI. Write tests in plain English and run them via CLI.

MCP server for interacting with Postman via natural language

A package used to create tests in node.js, and evaluate them.

API testing and management tool for AI Agents - MCP Server

AI-powered testing agent for frontend, backend, Logic Apps, and Function Apps using MCP

A CLI tool for performance and security testing of Node.js APIs, including JWT, CSRF, and session hijacking tests

ESLint plugin for @builder-shin/nswag-specs DSL

Open source validation toolkit for data pipelines, APIs, and integrations. Built with TypeScript for modern development workflows.

CLI tool for testing APIs

Pass data between Playwright tests using @depends annotations

<h1><img src='img/logo-small.svg' alt='logo' align='center' /> <code>req</code></h1>

Automate sequential HTTP workflows through JSON configuration. Create, edit and execute via visual Studio or CLI. Supports conditional execution, response chaining, user input prompts, and validations.

API test infrastructure for StoneScriptPHP projects — coverage validation and test execution

An MCP server that generates comprehensive API test plans (positive, negative, edge cases) from endpoint metadata.

MCP Server for running Postman collections using Newman

MCP Server for Swagger/OpenAPI documentation and API testing

This package will be able to consume postman collection

A powerful CLI wrapper around k6 for load testing with JSON configuration, variable substitution, custom ramping patterns, and comprehensive logging

Reusable fixtures and helpers to speed up Playwright UI and API tests.

hawkclient-cli, a cli to test apis collection

A powerful CLI wrapper around k6 for load testing with JSON configuration, variable substitution, custom ramping patterns, and comprehensive logging

OpenAPI 3.1 Assertions plugin for Japa (fork of @japa/openapi-assertions)

OpenAPI-based DSL with test runner integration and spec file generation

Loadtester allows for the distribution of load tests across numerous computers, making it possible to simulate millions of concurrent users.

Test and measure API rate limits. Send increasing request bursts, detect throttling, show requests/second before 429, retry-after values, and rate limit headers.

MCP Server for running Bruno Collections

High-performance parallel API testing runner with JSON validation for Postman, Requestly collections

Test REST APIs using Gherkin language with Cucumber for Cypress — autocomplete, cross-platform, JSON Schema validation

HTTP Client TUI - Beautiful terminal-based HTTP client

Mock any API in seconds. Config-driven. CLI-powered. No backend required.

A structured DSL layer over official allure-vitest — write readable, scalable API tests with decorators, steps, and TestOps features.

Generate test cases from OpenAPI specifications

Tly - AI-powered natural language API testing CLI. Write tests in plain English and run them via CLI.

HTTP bridge for RATL.ai MCP servers - enables Claude Desktop to connect to HTTP-based MCP servers

TypeScript API Automation Framework for testing and interacting with RESTful APIs

Playwright-style testing framework for k6 with TypeScript

Boilerplate generator for API Testing from Swagger to Cypress

ThunderBench CLI - 高性能API性能测试工具命令行界面，支持框架对比测试

Traffic Mirror is a regression testing tool that records HTTP traffic from a live environment and replays it against two different environments (e.g., Stable vs. Canary) to detect differences in responses.

AI-powered API test generator that creates comprehensive Jest tests from OpenAPI specifications

HTTP bridge for RATL.ai MCP servers - enables Claude Desktop to connect to HTTP-based MCP servers

ReAPI CLI tool for running API tests and managing test deployments

Lightweight local proxy for testing localhost APIs from the Reex API Builder

GASSAPI MCP Server - AI-powered API testing and automation tools

Transform Swagger/OpenAPI specs into AI-executable MCP tools with stateful mocking

A simple CLI tool for running a mock API server based on a directory structure.

A powerful TypeScript library for performing heavy stress tests and load testing on APIs

a lightweight and powerful CLI tool for testing REST APIs directly from the terminal

A powerful CLI wrapper around k6 for load testing with JSON configuration, variable substitution, custom ramping patterns, and comprehensive logging

Lightweight AJV-based schema & contract checks for Playwright tests

Playwright API Testing Framework Initializer

通用 Mock 服务器 - 适用于任意网站的 HTTP 请求拦截和 Mock 响应系统

Cross-platform BAD CLI wrapper that downloads the correct binary from GitHub releases.

Generic HTTP ability adapter for Opovid.

MCP server that auto-generates curls, .http files, and pushes API collections to Postman — straight from your backend code.

Browser automation + API testing + load testing in one tool. Record flows, test REST APIs, run VU-based load tests, export to k6. Entirely local.

MCP Server for API Testing - HTTP request testing and validation for hermes-agent, Claude Code, Cursor

A comprehensive HTTP stress testing library for Node.js

Initializer for a Playwright-based autotest framework skeleton