190 MCP servers and agent skills in the Security category, ranked by quality score.
AI agent identity, trust, and audit trail infrastructure. 17 MCP tools: register agents with Ed25519 keypairs, check permissions (sub-5ms), emit tamper-evident audit events, verify trust scores (0-100), delegate credentials, and manage ephemeral agents. IETF Internet-Draft filed (draft-vorim-vaip-00). Works with LangChain, OpenAI, CrewAI, Stripe ACP, and 4 more frameworks. `npx @vorim/mcp-server`.
Agent identity, scoped delegation, and governance: issue passports, build and verify narrowing-only delegation chains, enforce policy at a gateway, and emit signed admission and outcome records. 150 tools. `npx -y agent-passport-system-mcp`
Injects a live, reversible MCP server into a running Express / FastAPI / Next.js app — reads safe by default, writes gated behind human confirmation. The same engine also proves deploys and PRs (`apocalypse` / `review`).
Verify a photo's capture time and provenance before an agent trusts it: cryptographic C2PA Content Credentials validation against the official trust lists, EXIF and XMP consistency checks, and classical pixel forensics fused into one typed verdict with a 0 to 100 confidence. Free keyless tier, opt-in shareable verdict permalinks, and key-gated signed PDF audit reports. Provenance validation, not a
Official [Shieldly](https://www.shieldly.io) MCP server: `analyze_iam_policy` and `analyze_cloudformation_template` tools flag AWS IAM privilege-escalation paths, wildcards, and over-permissive access. Free demo mode, no signup or API key needed. `npx -y @shieldly/mcp`.
Supply-chain gate for agent skills and MCP servers — scans tool definitions for poisoned instructions, pins vetted servers by content hash in a committed lock, and verifies drift in CI; the bundled truecopy-mcp proxy exposes only pinned, unmodified tools from a live server.
Zero-trust local PII and secrets masking server for Cursor, Windsurf, and Claude Desktop. `npx pii-masking-run`
Check whether anything you depend on is known malware, before an agent installs it. `check_lockfile` takes a package-lock.json, yarn.lock or pnpm-lock.yaml and matches every pinned version against published malicious-package advisories in one call, free and with no API key, catching compromised releases like chalk@5.6.1 while leaving their clean releases alone. `scan_artifact` adds deterministic b
Free remote MCP for Core Web Vitals metrics by CMS, CDN, and framework (Chrome field data + multi-site crawl). No auth. Endpoint: `https://www.corewebvitals.io/api/state-of-cwv/mcp`.
Local AI chat history secret scanner for macOS. Finds API keys and secrets leaked into Claude Code, Cursor, Copilot Chat, Cline, Codex, Gemini CLI, and other AI tool transcripts. 9 MCP tools: findings list with redacted previews, boolean secret detection (`sieve_check_text`), placeholder-only redaction (`sieve_redact_text` returns `sieve://project/key`, never raw values), vault-backed command exec
Find MCP servers by natural-language task and get advisory trust screens (check_tool_trust, assess_server) before you connect. The directory client for mcpindex.ai; advisory, not a safety verdict.