APISec Platform vs VulnAPI

APISec Platform is an application security tool for validating exploits against APIs and applications. It discovers applications, builds a dynamic model of their behavior, and runs attacker-like tests at runtime. The model can capture endpoints, parameters, authentication flows, roles, permissions, object ownership, and business logic without documentation or developer interviews. Tests cover business logic, data access, permissions, configuration, infrastructure, and controls such as injection and token handling. For validated exploits, the platform returns the request sequence, data reached, blast radius, replay, and a suggested resolution. APISec says it can find APIs across infrastructure, source, gateways, ingress and authentication paths, web apps, development tools, and CI/CD, as well as agents, MCP servers, and LLM call sites. Public APIs run against its cloud; private and on-premises APIs can use a Kubernetes or Docker container, while cloud deployments can run in a customer’s GCP, Azure, or AWS environment. The free plan covers public API testing and basic simulations. Standard costs $690 a month per 100 endpoints; Pro costs $2,750 a month per 100 endpoints.

VulnAPI is a free, open-source dynamic application security testing tool for scanning APIs for vulnerabilities and security risks. It can scan from a curl-like CLI, OpenAPI contracts, or a GraphQL endpoint. The product page says it detects all ten OWASP API Security Top 10 categories out of the box; listed test areas include API discovery, authentication, authorization, input validation, and business logic. Reports identify risk level, vulnerability, description, and the operation where a finding occurred. Findings also include the triggering request and remediation steps in plain language. Teams can tailor assessments to their needs and run scans in GitHub Actions, GitLab CI, or Jenkins. Pre-built binaries and installation instructions are provided for Linux, Windows, and macOS, with Docker also available; deployment is self-hosted. The scanner collects anonymous usage data about scan counts and detected vulnerability counts and severity, but a command-line flag lets users opt out. Proxy settings can be supplied through HTTP_PROXY or HTTPS_PROXY environment variables or a --proxy argument. The tool is released under the MIT License and is free to use, modify, and distribute for educational and testing purposes.