Best API Testing Tools for Visual Studio

Find and compare the best API Testing tools for Visual Studio in 2025

Use the comparison tool below to compare the top API Testing tools for Visual Studio on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    Parasoft Reviews
    Top Pick

    Parasoft

    $125/user/mo
    126 Ratings
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    Parasoft's mission is to provide automated testing solutions and expertise that empower organizations to expedite delivery of safe and reliable software. 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.
  • 2
    vREST Reviews

    vREST

    vREST

    $20 per month
    Ensure the functionality of your REST APIs by developing comprehensive test cases, executing them, and assessing the responses to identify any discrepancies through a Diff Report, among other capabilities. Seamlessly connect with tools such as JIRA, Jenkins, Team City, Bugzilla, and Slack to keep your team updated on test failures, all while easily integrating with any build or continuous integration system. By utilizing API Mocks, your front-end developers can advance their work independently of back-end APIs, allowing for parallel development with the back-end teams. In addition to its user-friendly interface and exceptional customer support, vREST boasts unique features that distinguish it from competitors. If you find yourself hesitant to write test cases, vREST offers a convenient option to record them simply by interacting with your application. Moreover, the vrunner tool enables you to execute your test cases effortlessly by entering a command in your terminal, meaning that every time you deploy your application, you only need to execute a single command to confirm your APIs' functionality. This streamlined approach significantly enhances productivity across your development team.
  • 3
    APIsec Reviews

    APIsec

    APIsec

    $500 per month
    Cybercriminals are increasingly exploiting vulnerabilities within API logic. It is essential to understand how to secure APIs effectively to avert breaches and safeguard against data leaks. APIsec identifies critical weaknesses in API logic that hackers exploit to access confidential information. In contrast to conventional security measures that focus solely on prevalent issues like injection attacks and cross-site scripting, APIsec conducts comprehensive pressure tests on the entire API, ensuring that no endpoints are vulnerable to exploitation. By utilizing APIsec, you can be informed of potential vulnerabilities in your APIs prior to their deployment, preventing malicious actors from taking advantage of them. You can execute APIsec tests at any phase of the development cycle to uncover loopholes that might inadvertently allow unauthorized access to sensitive data and functionalities. Importantly, prioritizing security does not need to impede development; APIsec operates at the pace of DevOps, providing ongoing insights into your APIs' security status. With APIsec, you can complete tests in mere minutes, eliminating the need to wait for the next scheduled penetration test. This proactive approach not only enhances security but also streamlines the development process significantly.
  • 4
    SOAtest Reviews
    PARASOFT SOATEST Artificial Intelligence and Machine Learning Power APIs and Web Service Testing Tools Parasoft SOAtest is based on artificial intelligence (AI), machine learning (ML), and simplifies functional testing across APIs and UIs. The API and web service testing tool is perfect for Agile DevOps environments because it uses continuous quality monitoring systems to monitor the quality of change management systems. Parasoft SOAtest is a fully integrated API and web-service testing tool that automates end-to-end functional API test automation. Automated testing is simplified with advanced functional test-creation capabilities. This applies to applications with multiple interfaces (REST and SOAP APIs as well as microservices, databases, etc.). These tools reduce security breaches and performance issues by turning functional testing artifacts in security and load equivalents. This allows for faster and more efficient testing, while also allowing continuous monitoring of API changes.
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