Password Strength Checker — Entropy & Crack Time

Password strength evaluation API for AI agents. Score 0-100 with entropy bits, estimated crack time (brute force and dictionary), pattern detection, and actionable improvement tips. Tools: security_check_password. Use this for password policy enforcement, user registration validation, or security audits. Returns machine-readable strength data for automated decisions. Returns: {score, entropy, crackTime, tips[]}. No API key required — x402 micropayment $0.001/call on Base L2.