AccelQ
AccelQ is a premium testing tool offering comprehensive automated, performance, and security testing features, seamlessly integrating for Web,API and Mobile with CI/CD pipelines
Tools / Category
API testing
Tools for testing APIs and HTTP interfaces.
57 tools
A 
AAirbone
Airborne is an API automation testing tool built on the Ruby RSpec framework
AAPI Fortress
A comprehensive and user-friendly tool for API testing, offering extensive features like a visual test composer, end-to-end testing, and strong CI/CD integration.
AApiary
Apiary provides the leading API-First platform designed specifically to help companies accelerate and control the design, development, and documentation of APIs.
AApickli
Test framework for behavior-driven API testing.
AAPITest
A simple and extensible behavioural testing library for Go.
AAssertible
Continuously test your web services.
BBlazeMeter
Unify performance testing, API testing and monitoring, service virtualization, AI-powered test data, and functional testing in one platform.
BBruno
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia).
CCitrus
Framework for automated integration tests with focus on message-based applications.
CCurl
A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS,…
D DeepFake HTTP
DeepfakeHTTP is a web server that uses HTTP dumps as a source for responses. This tool allows you to test clients against REST, GraphQL, and other APIs.
DDredd
Language-agnostic HTTP API Testing Tool.
FFiddler
Explore Fiddler's web debugging tools and proxy solutions to debug, mock, capture, and modify web and network traffic.
FFrisby
Frisby is a REST API testing framework built on Jest that makes testing API endpoints easy, fast, and fun.
HHoppscotch
Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia.
HHoverfly
Lightweight service virtualization/ API simulation / API mocking tool for developers and testers.
HHTTPie
🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era.
HHttpMaster
Practical and easy-to-use software tool for testing HTTP applications and services.
HHyperTest
HyperTest is a no-code test automation tool that regresses all your APIs by auto-generating integration tests using your network traffic, also giving a way to reproduce these failures inside actual user-journeys.
IImposter
Scriptable, multipurpose mock server.
IInsomnia
The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC.
JJMeter
Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services.
KKarate
Test Automation Made Simple.
KKatalon Studio
Start API testing from today with Katalon.
KKeploy
Keploy is developer-centric API testing tool that creates tests along with built-in-mocks, faster than unit tests.
MMicrocks
Microcks is Open Source cloud-native tool for API Mocking and Testing.
MMockAPI
MockAPI is a simple tool that lets you easily mock up APIs, generate custom data, and perform operations on it using RESTful interface.
NNock
HTTP server mocking and expectations library for Node.js.
PPact
Fast, easy and reliable testing for integrating web apps, APIs and microservices.
PPactFlow
Fast, easy, and reliable testing for your APIs and microservices at scale.
PParasoft SOAtest
Optimize API and web service testing with AI-enhanced SOAtest.
PPaw (RapidAPI)
RapidAPI for Mac is a full-featured and beautifully designed Mac app that makes interaction with REST services delightful.Whether you are an API maker or consumer, RapidAPI…
PPostman
Go faster from development to production with higher accuracy and fewer tokens.
P PyRestTest
YAML based api testing and API microbenchmarking tool in Python
RReadyAPI
The number one platform for Agile and DevOps teams, ReadyAPI powers functional, security, performance, and virtualization of SOAP & REST APIs.
RRest-Assured
Java DSL for easy testing of REST services.
R RestCase
RestCase supercharges the API development process resulting in improved team collaboration, reduced development time, better testing and increased overall productivity.
RRestQA
🦏 | Best in class Microservice automation testing.
RRestSharp
Simple REST and HTTP API Client for .NET.
RRoboHydra HTTP
RoboHydra Server is a great API testing solution for those who don’t have access to a server but need to test something.
RRunScope
API performance monitoring.
SSoapUI
SoapUI is a free and open source cross-platform functional testing solution for APIs and web services.
SStoplight Prism
Accelerate API development with realistic mock servers powered by API descriptions.
SSuperTest
Developer-friendly tool for testing Node.js HTTP servers and APIs
SSwaggerUI
Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.
TTelerek TestStudio
API testing with Test Studio helps you enhance your end-to-end testing strategy to cover test scenarios that require API calls.
TTestComplete
TestComplete offers a range of powerful features to help you scale your automated ui testing efforts and maximize test coverage.
TTestMace
Your IDE for working with an API.
TThunderclient
A Lightweight Rest Client for testing APIs. Supports collections, environments, git collaboration and local storage.
TTosca API Test
Tosca’s API Scan allows teams to easily create, manage, and execute automated API tests with a simple, no-code solution that literally anyone can use and adopt
TTrafficParot
Mock API server and message broker for TDD and API Testing
TTyk
Open Source API and AI Gateway supporting REST, GraphQL, TCP, gRPC and MCP (Model Context Protocol).
U Unirest
Unirest in Java: Simplified, lightweight HTTP client library.
VvRest
An effective online tool for automated REST API Testing.
WWireMock
A tool for mocking HTTP services.
ZZato API Test
With Zato API Test, you can test APIs in plain English, without any programming