Best API Testing Tools for Postman
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Compare the Top API Testing Tools that integrate with Postman as of August 2025
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This a list of API Testing tools that integrate with Postman. Use the filters on the left to add additional filters for products that have integrations with Postman. View the products that work with Postman in the table below.
What are API Testing Tools for Postman?
API testing software is used to test and validate the functionality, performance, security, and reliability of Application Programming Interfaces (APIs). These tools help ensure that APIs perform as expected under various conditions and meet the required business and technical requirements. Features typically include automated testing, request/response validation, load testing, security testing (e.g., for vulnerabilities and authentication), and performance testing. API testing software often supports integration with continuous integration/continuous deployment (CI/CD) pipelines to facilitate automated testing as part of the software development lifecycle. Compare and read user reviews of the best API Testing tools for Postman currently available using the table below. This list is updated regularly.
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1
KrakenD
KrakenD
KrakenD is a high-performance API Gateway optimized for resource efficiency, capable of managing 70,000 requests per second on a single instance. The stateless architecture allows for straightforward, linear scalability, eliminating the need for complex coordination or database maintenance. It supports various protocols and API specifications, with features like fine-grained access controls, data transformation, and caching. Unique to KrakenD is its ability to aggregate multiple API responses into one, streamlining client-side operations. Security-wise, KrakenD aligns with OWASP standards and doesn't store data, making compliance simpler. It offers a declarative configuration and integrates with third-party logging and metrics tools. With transparent pricing and an open-source option, KrakenD is a comprehensive API Gateway solution for organizations prioritizing performance and scalability. -
2
Parasoft
Parasoft
Parasoft helps organizations continuously deliver high-quality software with its AI-powered software testing platform and automated test solutions. Supporting embedded and enterprise markets, Parasoft’s proven technologies reduce the time, effort, and cost of delivering secure, reliable, and compliant software by integrating everything from deep code analysis and unit testing to UI and API testing, plus service virtualization and complete code coverage, into the delivery pipeline. A powerful unified C and C++ test automation solution for static analysis, unit testing and structural code coverage, Parasoft C/C++test helps satisfy compliance with industry functional safety and security requirements for embedded software systems.Starting Price: $125/user/mo -
3
MuukTest
MuukTest
Are bugs slipping through your QA process and frustrating your customers? Catching issues early shouldn’t mean overwhelming your team with time-consuming tests. With MuukTest’s AI-driven platform, growing engineering teams reach 95% end-to-end test coverage in just 3 months, delivering quality at speed. By leveraging AI, our QA experts rapidly design, manage, and maintain comprehensive E2E tests for web, mobile, and API applications on the MuukTest platform. Within 8 weeks, we deliver full regression coverage, followed by exploratory and negative testing to uncover hidden bugs and expand test scenarios. We also proactively identify and address flaky tests and false results to ensure the reliability of your tests. Testing early and often allows you to detect bugs in the early stages of your development lifecycle, reducing the burden of technical debt down the line.Starting Price: $5,000 per month -
4
Testable
Testable
A seamless experience across different types of tests. Reuse the same test scripts whether you are testing a web app across thousands of browser, OS, and device combinations, validating your APIs functionality, or running huge load tests. Enterprise-ready SaaS platform hosted by Testable in the cloud. Run your tests in the cloud or on-prem using your favorite open-source tools and let us handle the test execution, real-time reporting, analysis, and storage securely in the cloud. Securely host our testing platform on your own infrastructure behind your firewall. Modern, scalable, flexible packaging options including our one-click Kubernetes Helm package. Run your functional test on multiple browser, OS, and device combinations as part of a single test run. View a real-time report that includes live interactive sessions and videos for each virtual user, screenshots, assertions, performance metrics, trend analysis, and more.Starting Price: $99 per month -
5
Akto
Akto
Akto is an open source API security in CI/CD platform. Key features of Akto include: 1. API Discovery 2. API Security Testing 3. Sensitive Data Exposure 4. API Security Posture Management 5. Authentication and Authorization 6. API Security in DevSecOps Akto helps developers and security teams secure APIs in their CI/CD by continuously discovering and testing APIs for vulnerabilities. Akto's pricing is transparent on website. Free tier is available. You can deploy both self-hosted and in cloud. It takes only few mins to deploy and see results. Akto can integrate with multiple traffic sources - Burpsuite, AWS, postman, GCP, gateways, etc. -
6
Testfully
Testfully
From powerful API client features to advanced testing and monitoring, Testfully does it all. Enjoy the flexibility of cloud and offline-only storage, seamless team collaboration, and easy migration, all in one multi-platform tool. Easily transfer your data from Postman or Insomnia directly into Testfully. Flexible and secure, set global, environment, and folder variables scoped to workspace or user. Customize auth, parameters, headers, and body to build any HTTP request easily. Work together effortlessly, add teams, assign roles, and control folder access. Supports major schemes like OAuth2 for secure and streamlined authorization. From basic to complex, Testfully enables quick, effective testing without the need for coding, making advanced API testing accessible and hassle-free. Execute all requests in a folder simultaneously, sequentially, or randomly with just one click. Validate responses and perform contract testing using a declarative format, no coding is needed.Starting Price: $49 per month -
7
Speedscale
Speedscale
Validate the performance and quality of your apps with real-world traffic scenarios. Preview code performance, quickly spot problems, and rest assured your app runs optimally when it’s time to release. Mimic real-life scenarios, test load, and create intelligent simulations of third-party and internal backend systems to better prepare for production. No need to spin up costly new environments each time you test. Built-in autoscaling drives your cloud costs down even further. Bypass complex, homegrown frameworks and manual test scripts so you can ship more code, faster. Be confident that new code changes can handle high-traffic scenarios. Prevent major outages, meet SLAs, and protect the customer experience. Simulate third-party systems and internal backends for more reliable, affordable testing. No need to spin up costly, end-to-end environments that take days to deploy. Seamlessly migrate off legacy architecture without disrupting the customer experience.Starting Price: $100 per GB -
8
Pynt
Pynt
Pynt is an innovative API Security Testing platform exposing verified API threats through simulated attacks. We help hundreds of companies such as Telefonica, Sage, Halodoc, and more, to continuously monitor, classify and attack poorly secured APIs, before hackers do. Pynt's leverages an integrated shift-left approach, and unique hack technology using home-grown attack scenarios, to detect real threats, discover APIs, suggest fixes to verified vulnerabilities, thereby eliminating the API attack surface risk. Thousands of companies rely on Pynt to secure the no. 1 attack surface - APIs, as part of their AppSec strategy.Starting Price: $1888/month -
9
Hoppscotch
Hoppscotch LTD.
Hoppscotch makes it easy to create and test your APIs, helping you to ship products faster. Create APIs faster, test them instantly, document and share them automatically. From prototyping to production - develop without switching tabs. Hoppscotch got everything you need to make API development easy. Create workspaces for your teams. Control access to your workspaces. Work together with your team in real-time. Deploy Hoppscotch on your own servers. Organize your requests in collections or folders and share them with your team. Manage your environment variables and use them everywhere. View and manage your request history. Modify headers, authenticate requests, generate random data, and much more. Test your APIs and write assertions for the response. Use Hoppscotch in your native language. We support 30+ languages. Track all the activities in your workspace. Who did what and when. Use your existing SSO provider to login to Hoppscotch. Manage your users, workspaces, and more.Starting Price: $19 per user per month -
10
Kusho
Kusho
Transform your Postman collection into exhaustive test suites that plug into your CI/CD pipeline. Simply add a link to your Postman collection and generate exhaustive test suites. You can also manually prompt Kusho AI with basic API details. Runs in sync with your development process and auto-updates. Modern software teams are all about multitasking, and writing test cases can take away hours of a developer's valuable time. At KushoAI, we’re building the first AI agent that takes API testing off a developer’s plate. Developers focus on what they do best, and product releases are smoother than ever. Generate exhaustive test suites for each API so you save hours of manual effort. Customizable to meet your company's context; simply input additional natural language prompts and get test code in seconds. KushoAI understands your natural language prompt and produces test case code instantly. KushoAI can auto-run relevant test suites at any stage of your CI/CD pipeline. -
11
Stellar
Vstellar
Speed up your testing processes with Stellar’s low-code automation platform. Enhance efficiency, minimize errors, and achieve smarter software testing with effortless solutions for UI, API, mobile, performance, and accessibility testing. Empower your team to test more and stress less with effortless integration and advanced analytics.
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