aeondave/arjun
offensive-tools/api/arjun/SKILL.md
Discover hidden HTTP parameters in web endpoints. Use when performing API reconnaissance, fuzzing query/body/header parameters, or finding undocumented inputs in REST/GraphQL endpoints.
$ install --global
skillsauthnpx skillsauth add aeondave/malskill arjunInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Mar 31, 2026, 8:56 PM55.9s1 file scanned
SKILL.md
- name:
- arjun
- description:
- Discover hidden HTTP parameters in web endpoints. Use when performing API reconnaissance, fuzzing query/body/header parameters, or finding undocumented inputs in REST/GraphQL endpoints.
- license:
- MIT
- compatibility:
- Python 3; pip install arjun; Linux/macOS/Windows
- author:
- AeonDave
- version:
- 1.0
Arjun
HTTP parameter discovery — finds hidden GET/POST/JSON/XML parameters in web endpoints.
Quick Start
pip install arjun
# Single URL — GET params
arjun -u https://target.com/api/endpoint
# POST body params
arjun -u https://target.com/api/endpoint -m POST
# JSON body
arjun -u https://target.com/api/endpoint -m JSON
# Multiple URLs from file
arjun -i urls.txt -o results.json
Core Flags
| Flag | Purpose |
|------|---------|
| -u URL | Target URL |
| -m GET/POST/JSON/XML | Request method (default: GET) |
| -i FILE | Input file with URLs |
| -o FILE | Output results to JSON |
| -t N | Threads (default: 5) |
| -d N | Request delay (ms) |
| --headers "K:V" | Custom headers |
| --stable | Avoid flakey endpoints (retry on error) |
| -q | Quiet mode |
| --include | Always include params in every request |
Common Workflows
API recon on authenticated endpoint:
arjun -u https://api.target.com/v1/user -m GET --headers "Authorization: Bearer TOKEN"
Fuzz POST form:
arjun -u https://target.com/login -m POST
Batch scan from Burp export:
cat burp_urls.txt | arjun -i /dev/stdin -o found_params.json
Resources
| File | When to load |
|------|--------------|
| references/ | Extended wordlist and tamper tips |
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