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huntr logo
huntr
✓ verifiedFree

AI/ML bug-bounty platform where researchers bypass LLM guardrails in timed challenges to win cash prizes.

60K visits/mo
hCaptcha logo
hCaptcha
✓ verifiedFreemium

Privacy-focused CAPTCHA and bot/fraud-detection service, a drop-in reCAPTCHA alternative for websites and apps.

4.4M visits/mo
Mindgard logo
Mindgard
✓ verifiedPaid

Automated AI red-teaming platform that discovers, tests, and defends AI models and agents against security threats.

32K visits/mo
Vectra logo
Vectra
✓ verifiedPaid

AI-driven network detection and response platform that identifies and stops identity-based and lateral-movement cyberattacks in real time.

203K visits/mo1.0K saves
Greip logo
Greip
✓ verifiedFreemium

Fraud-prevention API providing payment fraud scoring, VPN/proxy detection, IP intelligence, and content moderation for developers.

30K visits/mo19K saves
Pricing

No public pricing

Basic: Free
Pro: $139/month billed monthly, $99/month billed yearly
Enterprise: Contact sales

Free trial available

No public pricing

No public pricing

Free: $0 (2,000 requests included)
Core features
  • Timed AI-hacking challenges with cash pots
  • Public leaderboard and rankings
  • Guardrail-bypass and jailbreak objectives
  • Hacktivity feed of activity
  • Community via Discord
  • Blog on LLM exploits and AI security
  • AI bot detection
  • Transaction fraud protection
  • Account-takeover (ATO) defense
  • Pull-based SMS MFA
  • Private Learning ML risk models
  • Two-line reCAPTCHA migration
  • Hundreds of integrations
  • Automated AI red teaming
  • AI discovery and attack-surface mapping
  • Agent-native reconnaissance
  • Exploitable-risk detection and reporting
  • Runtime AI protection and response
  • CI/CD, Burp Suite, and API integrations
  • Real-time AI-driven threat detection beyond traditional EDR
  • Detection of identity-based attacks and lateral movement
  • 360 Response for enforced containment across identity, devices, and network
  • Exposure management and security posture improvement tools
  • Managed detection and response (MXDR/MDR) services
  • Integrations across existing security tool ecosystems
  • Attack Labs research sharing threat intelligence and techniques
  • Payment fraud analysis and risk scoring
  • Proxy and VPN detection
  • IP and country intelligence lookups
  • IBAN and card issuer verification
  • Content moderation for profanity
  • User data scoring and validation
Use cases
  • Red-teaming and jailbreaking LLMs
  • Earning bounties for AI exploits
  • Learning AI attack techniques
  • Competing against other researchers
  • Blocking bots and spam signups
  • Preventing account takeover
  • Reducing transaction and payment fraud
  • Stopping credential stuffing
  • Testing AI systems against evolving attacks
  • Finding vulnerabilities in models and agents
  • Securing agentic workflows in production
  • AI governance and compliance reporting
  • Security operations teams needing detection beyond EDR/SIEM gaps
  • Enterprises defending against identity-based and hybrid cloud attacks
  • Organizations needing managed threat detection and response services
  • Finance, healthcare, and public sector teams meeting compliance-driven security needs
  • Blocking fraudulent payments before checkout
  • Detecting and stopping fake account signups
  • Preventing account-takeover attacks
  • Moderating user-generated text content
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