vulnapi vs Argus
API vulnerability scanning and security reconnaissance compared
vulnapi is a Go-based DAST tool focused on scanning APIs through curl-like requests or OpenAPI contracts. Argus is a Python reconnaissance toolkit that brings network, web application, and threat-intelligence checks together in an interactive CLI.

vulnapi: Scan APIs for Security Vulnerabilities
VulnAPI is a Go-based dynamic security scanner for APIs. It can discover exposed API-related resources and scan targets using curl-like requests or OpenAPI contracts, helping developers and security teams identify common weaknesses.

Argus: Gather Information for Security Reconnaissance
Argus is a Python toolkit that combines network, web application, and threat-intelligence reconnaissance modules in an interactive CLI. It suits analysts who want to run and manage varied checks from one tool, with explicit authorization for every target.
| vulnapi | Argus | |
|---|---|---|
| Language | Go | Python |
| License | MIT | MIT |
| Stars | 282 | 4.2k |
| Forks | 39 | 559 |
| Last analyzed | Oct 3, 2026 | Oct 3, 2026 |
Key differences
- vulnapi focuses on API weaknesses, while Argus covers broader network, domain, and web application reconnaissance.
- vulnapi scans targets or OpenAPI-described operations; Argus lets users select and run individual or grouped modules.
- vulnapi is written in Go, while Argus is written in Python.
- Both use the MIT license; Argus lists 135 modules and supports TXT, CSV, and JSON exports.
- vulnapi reports risk levels, CVSS scores, OWASP categories, and affected operations; Argus offers optional integrations with services such as Shodan and VirusTotal.
- Both are intended for authorized testing, with vulnapi focused on API assessment and Argus also suited to broader reconnaissance workflows.
Choose vulnapi if you…
- need to assess API operations using curl-like requests or an OpenAPI contract.
- want findings reported with risk levels, CVSS scores, and OWASP categories.
- need to discover exposed API-related resources and well-known paths.
Choose Argus if you…
- want a toolkit spanning network, web application, and security-intelligence reconnaissance.
- need an interactive CLI for selecting, grouping, and rerunning checks.
- want to export results as TXT, CSV, or JSON or use optional API-backed services.
Compare the numbers side by side, or add more projects
This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.