Security MCP Servers
Security category — 344 MCP servers, ranked by GitHub stars.
arc-gate-mcp
Runtime governance for MCP tool calls that blocks prompt injection and capability abuse before tool results reach the agent.
Compliance AIops
Compliance evidence from AIops audit trails: HIPAA/PCI/SOC2/GDPR, OSCAL export, 19 tools.
CanaryGuard 402
Deterministic prompt-injection detection & sanitization for AI agents via x402 on Base.
AIMarket Oracle Gateway
Stdio MCP: 17 verifiable AIMarket oracles, 35 pay-per-call tools for AI agents.
nobulex
Proof-of-behavior enforcement for AI agents: define permit/forbid/require rules, enforce them at runtime and keep hash-chained,…
AgentAegis
Pay-per-call cybersecurity for AI agents: vuln scans, threat intel, compliance, code security.
Seal
Stops agents double-charging across processes: exactly one execution, confirmed by the provider.
blackwall-mcp
API-key pre-action risk gate: any irreversible agent action (money, SQL, delete, email).
basescope
Read-only safety checks for Base and EVM: honeypot and rug-pull detection, risky approvals, verified source, balances, ENS and Basenames,…
State of Web Vitals
Core Web Vitals metrics by CMS, CDN, and framework — free remote MCP, no auth.
governed-mcp-gateway
HTTP MCP gateway that attaches a principal to tool calls and SSE streams, with allowlists and vault rotation.
trust-ledger-os
Trust and risk control plane for AI teams, with phases, routes and a package catalog.
OpsecForge
Local MCP tools that keep secrets out of agent context: redact files, scan commits, verify webhooks.
mcp-audit-gateway
Transparent MCP proxy that keeps a signed, hash-chained audit trail of agent tool calls, with YAML policy enforcement and OpenTelemetry…
Eleion Scanner
Register/verify your domains, queue security scans, and read findings (CVE, severity).
toolwrit
Policy sidecar for any MCP server: deny-by-default tool allowlist with argument rules, call and USD budget caps, and a hash-chained audit…
skillguard
Static scanner that checks Claude Code skills, plugins and MCP servers for exfiltration, install hooks and prompt injection before you…
x402 Notary MCP
Cryptographic receipts for AI outputs on Base or Solana via x402.
HallucC — Hallucination & Safety Guardian
Fact-check LLM outputs with cited sources. API key: aihcc.cloud/keys.
verify-proof
Verify timestamp proofs offline, anchor hashes through ProofLedger, keep agent run receipts.
tamperlens-mcp
Was this document edited, did its redactions hold, is it safe for a model to read — Tamperlens API.
VulnFeed
Dependency vulnerability scanner with EPSS scoring. 9 MCP tools. Free tier + x402.
rails-mcp
Default-deny action registry, append-only spend ledger, and human sign-off audit trail (MCP tools).
blastradius-mcp
Zero-trust security proxy, pre-execution blast radius simulation, DLP secret redaction, and cryptographic audit logging for MCP.
rqwstr-mcp
AI-native HTTP security testing MCP server — 17 tools with raw HTTP/1.1 + HTTP/2 control
Perspective API Alternative (Toxicity Detection)
Toxicity scores (0-1) for text before an agent posts it. Perspective API compatible. No LLM.
vorim-mcp-server
AI agent identity, permissions, trust scores, and tamper-evident audit trails via Vorim AI
mcp-server-mcpindex
Find MCP servers by describing a task and get advisory trust screens before connecting, using the mcpindex directory.
verity-mcp
Fail-closed verify-before-you-act gate for AI agents. Signed receipts. Pay-per-call via x402.
attest — verification for AI agent artifacts
Verify artifacts produced by AI agents: schema, emptiness, provenance, authority.
checker-mcp
Domain security & privacy checker as an MCP server. 17 live checks, 0-100 score, local-first.
MCP Security Guard
Audit MCP servers for tool poisoning, rug pulls and supply-chain risk (OWASP MCP Top 10).
Latchpoint
Offline, read-only auditing of MCP client configuration files with redacted findings
54ch10-mcp
JSON risk briefs for wallet addresses, tokens and URLs: scores, flags and sources from phishing, scam and URL-reputation heuristics,…
etch-mcp
Etch is a signed audit chain for AI agent decisions, offline-verifiable against pinned public keys.
guardrail-mcp
Enterprise security and code-safety guardrail for AI agents featuring AST taint analysis, SARIF/SBOM generation, and policy gates.
shieldly-io/mcp
AI-Powered AWS security analysis: scan IAM policies and CloudFormation for risks and escalation.
SafeNode MCP Gateway
Policy proxy for MCP tool calls. A denied call never reaches the downstream server.
SaveSaveSaveSave
Check messages, npm packages and crypto addresses before acting. Read-only scanner tools.
sealmyapp-tools
Offline security helpers for AI-built (vibe-coded) apps: classify whether a key is safe to expose, generate Supabase RLS audit SQL and…
trustscoreagent
Check the reputation of AI microservices and public APIs from an open trust registry.
VERAX
The body an agent asks before it acts: decide, approve, and keep a signed record on your machine.
aws-audit-scanner
Read-only AWS audit scanner: public S3 buckets, root and user MFA gaps, unused access keys, world-open security groups, CloudTrail gaps,…
ScreenVerity
Free U.S. exclusion, debarment and licence screening with a signed receipt of the lists checked.