# Sentinel - Autonomous Trust API Sentinel is the CAPTCHA alternative for APIs. Sub-50ms trust decisions using infrastructure forensics. ## Quick Links - Home: https://sentinel.risksignal.name.ng/ - Docs: https://sentinel.risksignal.name.ng/docs.html - Dashboard: https://sentinel.risksignal.name.ng/dashboard.html ## AI Security Guides - Stop AI Bot Abuse: https://sentinel.risksignal.name.ng/guides/stop-ai-bot-abuse.html - Agentic AI Security: https://sentinel.risksignal.name.ng/guides/agentic-ai-security.html - AI Detector Bypass: https://sentinel.risksignal.name.ng/guides/ai-detector-bypass.html - AI Coding Security: https://sentinel.risksignal.name.ng/guides/ai-coding-security.html - Generative Media Defense: https://sentinel.risksignal.name.ng/guides/protecting-generative-media.html - Academic AI Security: https://sentinel.risksignal.name.ng/guides/securing-academic-ai.html - LLM Guardrails: https://sentinel.risksignal.name.ng/guides/deep-intelligence-guardrails.html ## Technical Blog - Why CAPTCHA is Dead: https://sentinel.risksignal.name.ng/blog/why-is-captcha-dead.html - Turnstile for APIs: https://sentinel.risksignal.name.ng/blog/turnstile-for-apis.html - Ghost Traffic Tax: https://sentinel.risksignal.name.ng/blog/ghost-traffic-tax.html - Stopping ATO: https://sentinel.risksignal.name.ng/blog/stopping-ato.html ## Core Technology Multi-layer intelligence: ASN forensics + Velocity tracking + Behavioral Work Tokens ## Pricing Free: 1K decisions/mo | Pro: 500K decisions/mo | Enterprise: Custom Powered by RiskSignal Intelligence