Automatic API Attack Tool vs Parasoft SOAtest

Automatic API Attack Tool is a free, MIT-licensed, self-hosted security tool for Windows and Linux. It takes a Swagger 2.0 API specification in JSON or YAML and generates and runs attacks from that definition. Fuzzing scenarios send generated values within the specification’s boundaries and values that violate them, including random invalid values for checked parameters. The project describes extensibility for attack types such as illegal resource access, XSS, SQL injection, and RFI, and supports authorization and input-validation testing. It reports request details, expected-response checks, and a summary. TestNG results are written under build/testng-results, while bad requests are saved in a bad_requests folder. Optional host and port arguments support routing through a proxy. The project is intended for CI/CD and describes scheduled or code-push Jenkins jobs. Running it requires Java 8 or higher and Gradle. Windows build instructions use gradlew.bat build; Linux instructions create an executable from a shell script and the JAR. API discovery is not included.

Parasoft SOAtest automates functional, security and performance testing for APIs and microservices. It can create data-driven, multi-step API tests from recorded traffic or natural-language input without code, and supports more than 120 message formats and protocols, including MCP-based systems. Teams can reuse functional cases for penetration testing or convert them into scriptless, protocol-based performance tests that scale across machines and connect to CI/CD pipelines. Change Advisor identifies API changes and supports bulk refactoring of affected cases; Test Impact Analysis links tests to code changes so teams can run a smaller set. Named integrations include Jenkins, Azure DevOps, Bamboo and TeamCity, with an extension framework for other workflows. The product runs on Windows, Linux and macOS, with desktop, automation-server and web-server deployment options. Appium supports mobile testing on iOS and Android. Reports are available in HTML, PDF, XML and customizable formats, with centralized reporting and analytics available through Parasoft DTP. Pricing is on request. The product page offers a 14-day trial guided by a Parasoft Solution Engineer.