List of the Top 23 API Testing Tools for GitLab in 2025

Software designed for ongoing performance testing facilitates the automation of API load and application evaluations. In the case of intricate applications, users can create performance tests without needing to write code. Automated pipelines can be utilized to script these performance tests specifically for APIs. Users have the ability to design, manage, and execute performance tests using coding practices. Afterward, the results can be assessed within continuous integration pipelines, leveraging pre-packaged plugins for CI/CD tools or through the NeoLoad API. The graphical user interface enables quick creation of test scripts tailored for large, complex applications, effectively eliminating the time-consuming process of manually coding new or revised tests. Service Level Agreements (SLAs) can be established based on built-in monitoring metrics, enabling users to apply stress to the application and align SLAs with server-level statistics for performance comparison. Furthermore, the automation of pass/fail triggers utilizing SLAs aids in identifying issues effectively and contributes to root cause analysis. With automatic updates for test scripts, maintaining these scripts becomes much simpler, allowing users to update only the impacted sections while reusing the remaining parts. This streamlined approach not only enhances efficiency but also ensures that tests remain relevant and effective over time.

Simplified Testing Without Code Empower every member of your team, not just developers, to create and manage automated tests effortlessly. Address your testing needs efficiently, achieving comprehensive test coverage in mere days instead of several months. Our tests designed in natural language are highly resilient to changes in the codebase, and our AI swiftly fixes any test failures that may arise. Continuous Testing is essential for Agile and DevOps practices, allowing you to deploy features to production within the same day. Boozang provides various testing methods, including: - A Codeless Record/Replay interface - BDD with Cucumber - API testing capabilities - Model-based testing - Testing for HTML Canvas The following features streamline your testing process: - Debugging directly within your browser console - Screenshots pinpointing where tests fail - Seamless integration with any CI server - Unlimited parallel testing to enhance speed - Comprehensive root-cause analysis reports - Trend reports to monitor failures and performance over time - Integration with test management tools like Xray and Jira, making collaboration easier for your team.

Parasoft aims to deliver automated testing tools and knowledge that enable companies to accelerate the launch of secure and dependable software. Parasoft C/C++test serves as a comprehensive test automation platform for C and C++, offering capabilities for static analysis, unit testing, and structural code coverage, thereby assisting organizations in meeting stringent industry standards for functional safety and security in embedded software applications. This robust solution not only enhances code quality but also streamlines the development process, ensuring that software is both effective and compliant with necessary regulations.

It's clear that enhancing your testing efforts could help identify bugs sooner, yet effective QA testing often demands significant time, effort, and resources. With MuukTest, engineering teams can achieve up to 95% coverage of end-to-end tests in a mere three months. Our team of QA specialists is dedicated to creating, overseeing, maintaining, and updating E2E tests on the MuukTest Platform for your web, API, and mobile applications with unparalleled speed. After reaching 100% regression coverage within just eight weeks, we initiate exploratory and negative testing to discover bugs and further elevate your testing coverage. By managing your testing frameworks, scripts, libraries, and maintenance, we significantly reduce the time you spend on development. Additionally, we take a proactive approach to identify flaky tests and false results, ensuring that your testing process remains accurate. Consistently conducting early and frequent tests enables you to catch errors during the initial phases of the development lifecycle, thus minimizing the burden of technical debt in the future. By streamlining your testing processes, you can improve overall product quality and enhance team productivity.

Testim offers a rapid method for developing robust end-to-end test cases, accommodating both codeless and coded options. It empowers users to design stable, codeless tests utilizing advanced AI capabilities. Additionally, you can export your tests into code format, with access to Testim's JavaScript API for seamless integration with your development environment. This functionality enables you to easily debug, adjust, or refactor your tests as needed. To ensure consistency, you can store your tests in a version control system, allowing for execution with each code commit. Each month, millions of users, including notable companies like NetApp, Wix, and JFrog, rely on Testim for their testing needs. For further information, please visit our website to explore all that we offer.

Postman is a collaborative platform tailored for API development, aimed at streamlining the process of creating APIs while promoting teamwork, which leads to the quick production of high-quality APIs. Its various features support every stage of API development, thereby enhancing collaboration and expediting the process of building superior APIs. Users have the ability to rapidly and easily send requests for REST, SOAP, and GraphQL APIs right within Postman, which optimizes their workflow significantly. Moreover, it offers the capability to automate manual testing, integrating these tests into your CI/CD pipeline to prevent potential issues when new code is deployed. The platform also enables effective communication regarding API behavior by allowing users to simulate endpoints and their responses without needing a backend server. Additionally, you can create and publish visually appealing, machine-readable documentation, making your API more user-friendly and accessible. Regular monitoring of performance and response times keeps you updated on the health of your API, allowing for proactive management. Furthermore, Postman encourages a shared environment for both the creation and consumption of APIs, fostering real-time collaboration among team members, which can lead to more innovative solutions. This combination of features not only enhances productivity but also helps teams work more cohesively towards developing robust APIs. Postman’s AI Agent Builder is a comprehensive tool that accelerates the creation, testing, and deployment of AI agents by providing easy integration with APIs and LLMs. It allows users to quickly turn APIs into agent-ready tools, test LLMs’ performance and costs, and compare responses to choose the best model. The no-code platform features a visual canvas that lets developers design and configure agent workflows with ease.

Tuskr is an intuitive and robust test management software that simplifies the testing process. This tool enables users to handle test cases, execute test runs, and enhance their testing efficiency. Additionally, it allows seamless integration with existing bug tracking and time management applications. A complimentary 30-day trial featuring sample data is available for those looking to evaluate its capabilities, alongside a generous free plan for users who want to continue using it. With such offerings, Tuskr makes testing management accessible to teams of all sizes.

Alithya GoTest serves as an intuitive and efficient test hub that promotes teamwork and quick adoption, guaranteeing the dependability of digital solutions for businesses that demand uncompromising quality. Our user-friendly interface facilitates collaboration, execution, and resolution of tests while enabling communication across all team levels, ensuring that both test plans and results include the necessary details for effective analysis. Platform-agnostic in nature, Alithya GoTest enables seamless testing of desktop, web, and mobile applications, eliminating the need for extensive time and resources typically spent on building, maintaining, and integrating testing platforms into development workflows, thus empowering development teams to concentrate on adding value and enhancing quality. In contrast to traditional testing solutions, Alithya GoTest uniquely offers comprehensive end-to-end software testing through continuous testing within a DevOps framework. You can reach out to our exceptional bilingual support team or utilize our consulting, coaching, or online training resources to quickly familiarize yourself with the platform. Additionally, take advantage of our expanding catalog of pre-designed test suites tailored for major ERP platforms, such as Oracle Fusion Cloud, ensuring that software updates do not disrupt your existing solutions, thus enhancing overall operational resilience.

Develop, troubleshoot, and assess APIs with a personal touch instead of an automated one. Finally, a workflow that you'll truly value. Presenting the Collaborative API Design Tool, a platform designed for crafting, validating, and managing OpenAPI specifications. This desktop client supports interactions with both REST and GraphQL, allowing you to effortlessly send requests and review responses. You can easily generate and organize your requests, configure environment variables, handle authentication, create code snippets, and much more. Delve into the details of responses—analyze the complete request timeline, encompassing status codes, body content, headers, cookies, and additional insights. Structure your project with workspaces, folders, and environments while utilizing a user-friendly drag-and-drop interface for requests, accompanied by simple data import and export functionalities. Within a unified collaborative API design editor, you can create, edit, lint, troubleshoot, preview, and oversee your OpenAPI specifications. Moreover, generate configurations for well-known API gateways like the Kong API Gateway and Kong for Kubernetes. Seamlessly synchronize your API designs with version control platforms such as GitHub or GitLab, and deploy straight to API gateways like Kong with a single click, greatly enhancing your development workflow. This tool not only boosts efficiency but also encourages teamwork among members in designing effective APIs, ultimately leading to a more innovative development environment.

RapidAPI Testing provides a well-rounded solution for both functional API testing and monitoring, featuring an intuitive interface that accommodates all API types and integrates smoothly with the RapidAPI Marketplace and Enterprise Hub. This tool enables users and organizations to validate the reliability of their APIs through advanced functional tests crafted for comprehensive assessment. Additionally, it facilitates centralized monitoring of API tests from various geographical locations, boosting overall productivity by integrating with CI/CD pipelines and promoting teamwork among different departments. Moreover, RapidAPI Testing aids users in developing customized functional test flows that guarantee thorough validation of REST, SOAP, and GraphQL APIs. The platform's user-friendly interface offers three unique methods for creating tests, allowing both developers and non-developers to easily produce visual, automated, or code-oriented tests tailored to their specific requirements. In summary, RapidAPI Testing simplifies the API testing workflow, ensuring that all users can effectively verify their APIs' functionality while fostering innovation and collaboration in the process. This makes the tool an invaluable asset for teams striving for excellence in their API management practices.

Stoplight serves as a comprehensive platform for API design, development, and documentation. The Stoplight Platform fosters consistency, reusability, quality, and simplicity throughout the API lifecycle. Here’s how the Stoplight Platform can benefit your team: With Stoplight Studio's intuitive visual designer, crafting APIs becomes a straightforward task. The Stoplight Prism tool enables the automatic generation of mock API designs, enhancing your workflow. You can invite both internal and external collaborators to provide feedback and engage in the design process. This leads to the creation of APIs that are not only faster but also more robust. Additionally, by utilizing Stoplight Spectral, you can thoroughly test and uphold style guidelines. Automated documentation for both internal and external APIs ensures a seamless experience for all stakeholders. To efficiently scale API initiatives that are well-governed and collaborative, integrating design-first workflows is essential. This approach not only streamlines the process but also enhances overall productivity and collaboration among teams.

Monitor the effectiveness and health of your API endpoints along with vital website transactions through a single, intuitive dashboard. Checkly operates as a proactive reliability platform that combines the benefits of end-to-end testing with ongoing monitoring, making it ideal for modern, cross-functional DevOps teams. Focused on JavaScript-based open-source technology stacks, Checkly ensures a hassle-free setup and integrates effortlessly into your current development workflows. As the preferred solution for API and comprehensive monitoring in today’s dynamic environments, Checkly is highly programmable, versatile, and passionately supports JavaScript. Safeguard your critical website transactions with continuous monitoring and validation while also taking advantage of automatic screenshots that provide instant insights into your operational performance. Streamlining browser click-flow automation has never been simpler; make use of cutting-edge open-source tools like Playwright and Puppeteer for flawless automation. You can run your monitoring checks from 20 different locations around the globe, ensuring that your APIs not only respond quickly but also deliver accurate data payloads consistently. By utilizing Checkly, you can significantly improve the reliability and performance of your web applications, all while making your testing procedures more efficient. This enhanced capability allows teams to focus more on development rather than troubleshooting, thus fostering innovation and productivity.

The rise of hackers targeting vulnerabilities within API frameworks is alarming. To protect sensitive information and prevent data breaches, it is crucial to implement robust security measures for APIs. APIsec excels in identifying critical weaknesses in API logic that could be exploited by cybercriminals to gain unauthorized access to private data. Unlike traditional security solutions that mainly address common threats such as injection attacks and cross-site scripting, APIsec thoroughly examines the entire API, making sure that every endpoint is secured against potential exploitation. Leveraging APIsec allows you to identify possible vulnerabilities in your APIs before they are launched, thereby thwarting hackers before they can strike. APIsec evaluations can be performed at any stage of the development lifecycle, helping to uncover weaknesses that might unintentionally permit malicious individuals to access sensitive information. Integrating security does not have to slow down the development process; APIsec aligns seamlessly with DevOps methodologies, offering continuous visibility into API security. Instead of relying on scheduled penetration tests, which can take time, APIsec provides swift feedback in a matter of minutes, allowing developers to work quickly while still safeguarding their APIs. By adopting APIsec, organizations can achieve an effective equilibrium between security and efficiency in their development processes, ensuring that they remain resilient against evolving threats. This proactive approach not only enhances security but also fosters a culture of vigilance and responsibility within development teams.

Akto is a rapid, open-source API security platform that enables users to set up in just one minute. Security teams utilize Akto to keep an ongoing inventory of APIs, assess them for vulnerabilities, and identify issues during runtime. The platform includes tests for all categories from the OWASP Top 10 and HackerOne Top 10, such as Broken Object Level Authorization (BOLA), authentication flaws, Server-Side Request Forgery (SSRF), Cross-Site Scripting (XSS), and various security configurations. With its robust testing engine, Akto conducts a range of business logic tests by analyzing traffic data to discern API usage patterns, effectively minimizing false positives. Additionally, Akto supports integration with a variety of traffic sources, including Burpsuite, AWS, Postman, GCP, and various gateways, enhancing its usability across different environments. This adaptability makes Akto a valuable tool for ensuring the security of APIs in diverse operational settings.

Tigmat enables you to automate your testing processes effortlessly, requiring no coding skills at all. This platform accommodates a variety of applications, including Web, Android Web, and APIs, allowing for seamless recording of both Web and Android platforms. With Tigmat, you can modify any aspect of your tests without the need to delve into the underlying code. The service provides extensive test execution capabilities across over 60 real Android devices, along with support for Windows, Linux, Firefox, Chrome, and Edge, ensuring comprehensive coverage. You can easily register for a free trial to explore all features and determine if Tigmat meets your needs. Every test you conduct is captured in a video format for your review, adding an extra layer of convenience and clarity. Among the numerous functionalities available are CI/CD integration and effective user management options, which enhance the overall testing experience. Experience the benefits of Tigmat today and discover how it can facilitate your objectives more efficiently.

To ensure that your applications run efficiently and maintain superior quality, it's crucial to replicate real-world traffic scenarios during testing. By closely monitoring code performance, you can swiftly pinpoint problems and assure that your application functions optimally before it goes live. Crafting realistic testing environments, performing load tests, and designing intricate simulations of both external and internal backend systems will significantly improve your readiness for production. This approach eliminates the need to create costly new environments for every test, and the integrated autoscaling feature further minimizes cloud costs. You can avoid the hassle of cumbersome, custom frameworks and labor-intensive manual testing scripts, allowing you to release more code in a shorter timeframe. Rest assured that your updates can handle heavy traffic without issues, thus preventing major outages, meeting service level agreements, and ensuring user satisfaction. By effectively mimicking both external systems and internal infrastructures, you achieve testing that is both reliable and economical. There's no longer a requirement to invest in expensive, all-encompassing environments that demand extensive setup times. Transitioning away from outdated systems becomes effortless, guaranteeing a smooth experience for your customers. With these innovative strategies, your application can improve its resilience and performance under a variety of conditions, ultimately leading to a superior product. Additionally, this streamlining of processes allows for a more agile development cycle, empowering teams to innovate and adapt rapidly to changing market demands.

Pynt is a cutting-edge API Security Testing Platform that unveils authenticated API vulnerabilities through simulated attacks. We assist numerous organizations, such as Telefonica, Sage, and Halodoc, in consistently monitoring, classifying, and preemptively addressing inadequately secured APIs before malicious hackers can exploit them. Leveraging a distinctive hacking methodology and an integrated shift-left approach, Pynt employs proprietary attack scenarios to identify genuine threats. In addition, it facilitates the discovery of APIs and provides recommendations for rectifying confirmed vulnerabilities. With the trust of thousands of businesses, Pynt plays a crucial role in safeguarding their applications. Many companies incorporate Pynt into their application security strategies to ensure robust protection against potential threats. This reliance on Pynt underscores its importance in the ever-evolving landscape of API security.

Appvance IQ (AIQ) significantly enhances productivity and reduces costs associated with test creation and execution. It provides both AI-powered fully automated tests and third-generation codeless scripting options for developing tests. The scripts generated undergo execution via data-driven functional and performance testing, including app-pen and API assessments for both web and mobile applications. With AIQ's self-healing technology, you can achieve comprehensive code coverage using only 10% of the effort that traditional testing methods demand. Moreover, AIQ identifies critical bugs automatically, requiring very little intervention. There is no need for programming, scripting, logs, or recording, simplifying the overall testing process. Additionally, AIQ readily integrates with your current DevOps frameworks and tools, streamlining your workflow even further. This seamless compatibility enhances the efficiency of your testing strategy and overall project management.

With Loadmill, organizations can generate automated API tests directly from real user sessions, streamlining their development workflows while significantly increasing speed and automating previously manual testing processes by mimicking genuine user behavior. By re-executing thousands of user flow tests, Loadmill effectively addresses regression challenges, thereby reducing the time needed for regression cycles and allowing teams to focus on critical priorities. This approach not only minimizes costs associated with inefficient testing and maintenance but also ensures that regression tests are automatically generated from actual user interactions, enabling teams to operate more efficiently. Furthermore, by automating the entire quality assurance process through the recreation of authentic user actions, Loadmill integrates smoothly into continuous delivery pipelines, promoting quicker deployment of updates. By harnessing real traffic from websites around the globe, Loadmill facilitates rapid performance testing of your server, enabling tests to be launched in mere seconds and helping to identify bottlenecks before they impact production environments. Its distributed system allows the use of countless unique IP addresses and locations for each test, and it also provides the option to record and replay specific user scenarios on a large scale, ensuring thorough coverage and reliability in all testing initiatives. In addition, this capability fosters a more robust testing environment, empowering organizations to adapt to evolving user needs efficiently.

TestEngine is an exceptionally effective platform tailored for the large-scale automated execution of SoapUI and ReadyAPI tests. It provides flexible deployment methods that allow for installation in diverse environments, such as cloud services or on-premises systems, utilizing Docker, virtual machines, or operating systems like Mac, Linux, and Windows, thus supporting both centralized and distributed execution strategies. By harnessing TestEngine, teams can dramatically accelerate their delivery pipelines through the simultaneous execution of tests. This tool can proficiently manage extensive test suites alongside quicker, impromptu test cases, all while necessitating minimal infrastructure maintenance. TestEngine adeptly handles the queuing of test requests, even during times of peak demand, ensuring that results are promptly returned to users on distributed clients while preserving data for future reference. The critical role of comprehensive testing is underscored, as it is vital for the successful delivery and upkeep of high-quality applications and services. Moreover, with TestEngine, teams can refine their testing workflows and simplify execution processes, circumventing the typical hurdles associated with intricate environments, which ultimately fosters greater productivity and efficiency in software development. This positions TestEngine as an indispensable asset in modern testing landscapes.

PARASOFT SOATEST: Harnessing AI and ML for Enhanced API and Web Service Testing Parasoft SOAtest leverages the power of artificial intelligence and machine learning to streamline functional testing for both APIs and user interfaces. This tool is particularly well-suited for Agile DevOps settings, as it incorporates continuous quality monitoring systems to oversee the integrity of change management processes. As a comprehensive API and web service testing solution, Parasoft SOAtest automates the entire functional API testing process, facilitating effortless test automation. Its sophisticated capabilities for creating functional tests cater to applications with diverse interfaces, including REST and SOAP APIs, microservices, and databases. By transforming functional testing artifacts into security and load testing equivalents, these tools not only mitigate security vulnerabilities and performance issues but also enhance the speed and efficiency of the testing process, all while enabling ongoing monitoring of any API modifications. Ultimately, this results in a more robust testing framework that keeps pace with the rapid changes in today’s development environments.

The true strength of your intelligence lies not in AI but in the capabilities of your developers. Equip them with essential tools to lead the charge in API Security, ensuring consistent and unmatched protection across the entire API lifecycle. By integrating your OpenAPI definition into your CI/CD pipeline, you can facilitate automated scanning, auditing, and safeguarding of your API. We will thoroughly examine your Swagger file for over 300 potential security vulnerabilities and provide precise guidance on how to rectify them. Incorporating security measures is crucial for every developer throughout their workflow. Additionally, you will receive comprehensive insights into API attacks occurring in production, as well as security measures applicable to all your APIs, enabling a robust defense strategy.

Levo.ai offers businesses exceptional insight into their APIs, facilitating the discovery and documentation of all internal, external, and partner/third party APIs. This enables enterprises to assess the risks associated with their applications and prioritize them according to sensitive data transfer and authentication/authorization practices. Furthermore, Levo.ai ensures that all applications and APIs are continuously evaluated for vulnerabilities at the earliest stages of the software development lifecycle, enhancing security measures effectively. By maintaining rigorous testing protocols, organizations can proactively address potential threats.