MCP Server Directory

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

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.

guide-registry guide.localleader/guide-registry

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

Intended's authority layer as MCP tools: ALLOW/ESCALATE/DENY decisions with signed tokens.

Website compliance checks for Russian personal data law 152-FZ: score, violations, fix instructions.

Converts photos or scans of printed sheet music to MusicXML with optical music recognition

Scans Agent2Agent (A2A) protocol code for webhook SSRF, missing auth, and credential exposure

Priority — TypeScript Compiler Intelligence dev.semanticreader/semantic-reader

Stateless TS/JS compiler facts for agents: references, imports, impact. No repo index or OAuth.

Audit a domain's email and web security: SPF, DKIM, DMARC, MTA-STS, DNSSEC, TLS, WHOIS. No API keys.

WCAG 2.1 AA accessibility scanner (Playwright + axe-core) with grounded, browser-verified fixes.

MailSenpai com.mailsenpai/mcp

MailSenpai: lists, campaigns, DNS & spam checks (74 tools, OAuth, EU). SMTP Senpai: SMTP & API.

Alkemata Knowledge Gateway com.alkemata/public-knowledge

Read Alkemata articles and maps; submit reviewed proposals; create map content with authorization.

Basis Theory MCP by usefulapi io.usefulapi/basis-theory

Read token metadata, applications, audit logs, proxies and usage in the PCI vault.

guide-registry guide.pokerplayer/guide-registry

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

Who can change a Solana program or EVM contract, dependency advisories, scans. Paid per call (x402).

Trent ai.trent/trent

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

Agent Card Health Check io.github.kadopi/agent-card-health-check

Free no-storage MCP that checks A2A Agent Card connection readiness for authorized targets.

guide-registry guide.engineeringleader/guide-registry

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

Scan prompts, tool definitions and model output for injection, and guard agent tool calls.

guide-registry guide.coachingleader/guide-registry

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

MCP server for SecObserve: triage findings, import scan reports and SBOMs, generate VEX.

CERT-FR Security Advisories — buy per-query in-session (certfrwatch) com.a2awire/data-cert-fr-advisory-national-cert-alert

CERT-FR (ANSSI) security advisories & alerts: French national CERT vulnerability feed, hourly

Ghosty Studio docs studio.ghosty/docs

Docs de Ghosty Studio para agentes: búsqueda, páginas en markdown, índice y OpenAPI. Sin auth.

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

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