190 MCP servers and agent skills in the Security category, ranked by quality score.
MCP server for maigret, a powerful OSINT tool that collects user account information from various public sources. This server provides tools for searching usernames across social networks and analyzing URLs.
MCP server for Thales CipherTrust Manager RestFul Data Protection service.
L402 Lightning paywall + Hashcash proof-of-work gate for MCP tool calls. Free tier solves a PoW challenge; paid tier pays a Lightning invoice via self-hosted LNBits. No accounts, no API keys, no third-party SaaS. Drop-in middleware for any MCP server. `npx @powforge/captcha-mcp`.
Security intelligence for AI agents: password breach checks (900M+ HIBP hashes), email/domain/IP/URL reputation, prompt injection detection (200+ patterns), and skill supply chain scanning. Pay-per-request via x402 USDC micropayments or free demo mode, no API key needed.
MCP server for domain and URL security analysis powered by GridinSoft Inspector, enabling AI agents to verify website and link safety.
Action logs for AI agents. Records every agent action in a SHA-256 hash chain, making an audit trail. Install via `npx agentseal-mcp`.
AI-powered scam and threat verification MCP server. Check phone numbers, URLs, text messages, emails, documents, and QR codes against 8M+ threat intelligence records (FTC/FCC complaints, carrier analysis, URLhaus, ThreatFox). Returns risk scores, verdicts, and detailed signals. 10 tools, OAuth 2.1 + API key auth, Streamable HTTP transport.
Free AI agent skill security scanner. Scan SKILL.md, MCP configs, and system prompts for credential theft, prompt injection, zero-width character attacks, and ClawHavoc indicators. Supports OpenClaw, Claude Code, Cursor, and Codex. No signup required.