MCP Server Directory

Debian Security Advisories — buy per-query in-session (debianwatch) com.a2awire/data-debian-security-advisory-dsa-linux

Debian Security Advisories (DSA). $0.01/query. Register in-session — free testnet funds.

guide-registry com.dataengineerprofessional/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

MCP Security & Vulnerability Auditor io.github.Ansarii/mcp-security-auditor

Static AST security scanner detecting command injection, leaked secrets, and SSRF in MCP tools.

FlygKollen — Swedish Flight Tracking io.github.jannegpriv/flygkollen

Swedish flight tracking: live status, gates, airport boards, nearby-aircraft ADS-B scan.

Gastat io.github.pipeworx-io/gastat

GASTAT MCP — Saudi Arabia's General Authority for Statistics.

WebStartHub services com.webstarthub/services

Public services, guide/FAQ search and estimates. Inquiry drafts require scoped authentication.

VulnHunt Security Intelligence io.github.owenkingva-web/vulnhunt

Read-only smart-contract security intelligence for autonomous agents.

SYMBaiEX Evidence MCP com.symbaiex.www/evidence

Authenticated public evidence search, verification, research jobs, exports, and webhooks.

Mochii work graph com.chibitek/mochii

Mochii work graph: projects, tasks, meetings. Stiki OAuth. Not Nexus memory.

guide-registry guide.homegarden/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

Trent ai.trent/trent

Security reviews, threat models over a repo or website, and remediation tracking, in your editor.

Czech Company Registry (ARES) Tools io.github.appvantagelabs2-a11y/czid

Czech ARES company registry: VAT, insolvency, RÚIAN addresses, IČO/DIČ checks. All free, no auth.

AgenTrux com.agentrux/agentrux

Authenticated event topics for agent-to-agent messaging with per-agent credentials and audit logs.

Neon Zero-Trust MCP Gateway io.github.Ansarii/zero-trust-mcp-gateway

AI security firewall & DLP proxy protecting API keys and blocking destructive commands.

slopcheck com.edgethirteen.www/slopcheck

Check a YouTube channel's recent uploads against YouTube's 2026 inauthentic-content policy.

Authorizes MCP tool calls against a session policy, not one call at a time.

Scans files for leaked secrets and API keys

Kevscope dev.workers.cybermax-tools.cybermax/kevscope-api

CVE patch-priority API + MCP: CISA KEV, EPSS, CVSS, SSVC. Keys $19/mo; 200 free calls/day.

AuthiChain io.github.undone0603/authichain

Look up AuthiChain product records. x402 paid verification and on-chain anchoring in development.

GPT-6 Sol com.llmotions.farm/gpt-6-sol

Authenticated async GPT-6 Sol agent with status polling and artifact results.

AI-powered Kubernetes diagnostics, RBAC analysis, security checks, and app deployment via MCP

Cited io.github.entradox/cited-visibility-scanner

AI-answer-engine visibility scans for local businesses, as agent tools

Three-layer firewall for MCP: content, egress and action policy. Proxy or server.

AI API Cost Firewall & Rate Limiter io.github.Ansarii/mcp-rate-limiter

Token guard and rate limiter preventing runaway API cost spikes for OpenAI and Anthropic.