Dev tools · alternatives · 2026

24 alternatives to API Unit

Chain testing added for a easy wait to tests API flows!

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
API UNIT▲2
Launch API tests in minutes with API UNIT.
2024 · its alternatives →
2
API Flow Integration Tool▲73
Powerful tool for API flow integration, testing, prototyping
2020 · its alternatives →
3
Mock API Generator▲548
Generate custom data & API to build apps in less than 30s
2021 · its alternatives →
4
Apidog▲571
All-in-one collaborative API development platform
2024 · apidog.com · its alternatives →
5
API Tester▲209
The easiest way to test APIs
2017 · its alternatives →
6
ApiHome▲73
Home of API testing
2022 · its alternatives →
7NW
New way to test APIs with OpenAPI and Postman▲80
2021 · github.com · its alternatives →
8
TestMace▲136
Work with an API and create automated tests without coding
2019 · its alternatives →
9
api.video Live▲129
Add live streaming in your solution with few lines code!
2019 · its alternatives →
10
Refraction▲156
Generate unit tests, create docs and refactor code using AI.
2023 · its alternatives →
11
Mocklets▲82
A HTTP-based API simulator to assist parallel development 🛠️
2018 · its alternatives →
12
Mayhem for API▲70
Automated REST API testing to find bugs in minutes
2021 · its alternatives →
13
InstaAPI▲104
Low-code API builder
2023 · its alternatives →
14
Supertest AI▲106
Generate React unit tests in seconds with AI
2023 · its alternatives →
15
Routebase▲106
Design, mock, test, and document APIs from one living spec. Full test runner built in: suites, scenarios, ten auth schemes, CLI in CI. No OpenAPI needed.
Jul 2026 · routebase.dev · its alternatives →
16WB
We built a tool that automatically generates API tests▲108
Hi, this is Mish and Sebastian. We are working on Step CI - a fully automated API testing platform for developers. Step CI works programming-language independent and for different API paradigms (REST, GraphQL, XML). Our CLI and test runner are available on GitHub (https://github.com/stepci) under the MPLv2 license. Since our last launch, Step CI is now able to generate automated tests for your API based on your OpenAPI (Swagger) spec. This saves you a lot of time as you never have to write and maintain your tests again! We would like to invite you to try our tool and give us…
2022 · stepci.com · its alternatives →
17
req▲71
A lightweight, minimal yet powerful API testing tool
2022 · its alternatives →
18
Count.io▲73
A simple counting and A/B testing API.
2017 · its alternatives →
19
UnitWise▲21
Generate unit tests within your IDE in seconds using AI
2024 · its alternatives →
20
ApiMeter▲2
The Smartest Way to Test APIs
Jan 2026 · its alternatives →
21
TestAI - AI-Generated Unit Tests▲12
TestAI is an automated unit test generation platform.
2024 · its alternatives →
22AT
APId – the API end to end testing framework has gone open source▲11
2020 · getapid.com · its alternatives →
23
Rester▲4
Visual Test Builder for REST APIs.
2023 · its alternatives →
24AC
A C# library to help you enforce a Given-When-Then structured Unit test▲24
I always strive to write better, clean and readable code. But I often find unit tests are hard to read, and especially harder to quickly identify what are the important pieces, or even what the test is testing about. So I came up with this lightweight library to help enforce unit tests with a Given-When-Then structure. I hope you find this useful. Any feedback are welcome. https://github.com/cobrakai-lab/Cobrakai.GWTUnit
2021 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →