CrowdSec – Collaborative Security Engine

CrowdSec detects and blocks threats using behaviour analysis and a crowd-sourced IP reputation database.

• GitHub: github.com/crowdsecurity/crowdsec (10 000+ ⭐)
• License: MIT
• Security: Designed for security. Community-curated blocklists. No malware.

Environment Variables

Variable	Description
{{CROWDSEC_URL}}	Local CrowdSec API URL
{{CROWDSEC_API_KEY}}	Bouncer API key

Usage Examples

List alerts

curl -s "{{CROWDSEC_URL}}/v1/alerts" \
  -H "Authorization: Bearer {{CROWDSEC_API_KEY}}"

List decisions (bans)

curl -s "{{CROWDSEC_URL}}/v1/decisions" \
  -H "Authorization: Bearer {{CROWDSEC_API_KEY}}"

AI Agent Tips

• Analyses logs to detect attacks (brute force, scanning, etc.).
• Bouncers enforce decisions at the firewall/proxy level.
• Community threat intelligence shared across 100K+ users.
• Integrates with Traefik, Nginx, iptables, and more.