Automatic API Attack Tool vs Pynt

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.

Pynt tests API security by analyzing API traffic and creating simulated attacks to identify vulnerabilities. It uses application and API context—including structure, sessions, parameters, users, and roles—to shape its tests. Listed coverage includes OWASP Top 10 risks for APIs, web applications, and LLMs, as well as business-logic scenarios and custom attacks. Findings can include vulnerability evidence, suggested fixes, risk scores, and CWE associations. A CLI supports CI/CD automation, and results are provided in JSON. Pynt can analyze testing assets, Burp XML, HAR recordings, and live traffic sources such as eBPF and ALB mirroring. Listed integrations include Postman, Newman, Python, Rest Assured, Burp, Go, Jest, ReadyAPI, Insomnia, GitHub Actions, GitLab, Jenkins, Azure DevOps, Jira, and Kubernetes. The free Starter plan is limited to 10 API endpoints; Business cloud scans are available under a free trial. Local use requires Docker and Python 3.9 or later. Postman integration requires the desktop app rather than the web interface.