API Tester is described as 'The first mobile app to test any type of API on the go. Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, and HTTPS APIs completely for free, on iOS or Android' and is a API Client in the development category. There are more than 50 alternatives to API Tester for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best API Tester alternative is Postman, which is free. Other great apps like API Tester are Insomnia REST Client, Yaak, Fiddler and Hoppscotch.
Parasoft is recognized by software development professionals as the leader in software development lifecycle automation. By integrating software development management, quality lifecycle management, and dev/test environment management through service virtualization, regression...
United States
Apigee is a free tools platform for developers and API providers to debug, test, protect and get analytics on APIs.
Lama2 defines the human-friendly l2 syntax and CLI for describing and executing APIs. Store your APIs in plain-text files. Collaborate with team using version control (say, git). Run Lama2 directly from VSCode extension. Think of Lama2 as Markdown for APIs.
Assertible is the easiest way to test and monitor your APIs and helps reduce bugs in web apps by providing tools to continuously validate endpoints and responses with a flexible interface to run your tests any time and place.
United States
Bearer is a developer tool that helps engineering teams monitor API requests, track performance, detect anomalies, and fix issues for their critical API usage. The solution monitors all outgoing API requests without proxying traffic.
France
EU
Automation-friendly framework for Continuous Testing. It makes sense to automate anything you repeat 10+ times. Taurus improves experience of JMeter, Selenium and others.
API Test Base is a free, offline-first tool for testing APIs and their side effects — the records an API writes to a database, the messages it publishes to a queue, the downstream services it calls. Test cases are created with a no-code / low-code UI, and the same tests can be...
RequesterX is a free desktop HTTP client for API testing and development. Organize requests into nested collections, use environment variables for easy context switching, generate code snippets in 13 languages, and keep everything stored locally — no account required.
South Korea
Routebase keeps your API's design, docs, mock servers, contract tests and monitoring in one living OpenAPI spec so they can't drift apart.
Gotcha HTTP Client is a lightweight http client that allows you to make requests and inspect responses.
