MCP Server Directory

QuantJourney API MCP io.github.QuantJourneyOrg/qj-api-mcp

Broad, OAuth-protected provider and financial-domain API tools for research agents.

Microsoft Windows Security Updates (MSRC CVRF) — buy per-query in-session (msrcwatch) com.a2awire/data-windows-security-update-microsoft-cvrf

MSRC Windows updates: CVE rollups, Patch Tuesday. Register in-session — free testnet funds.

Dockerfile Security Audit io.github.tylerscomic-lab/dockerfile-audit-mcp

Audit Dockerfiles for root users, baked-in secrets, curl-pipe-shell and unpinned base images.

MarginGlow AI Signal com.marginglow/signal

Evidence-backed opportunity intelligence for small businesses, built for authorised AI agents.

Email DNS Preflight x402 io.github.rosarioV25/email-dns-preflight-x402

Paid email, DNS, mail-security and RDAP intelligence for agents over x402.

Zero-key security toolkit: grade sites A+ to F, check CVE exploits, plain-English attack defenses

Scans ML model files (PyTorch, safetensors, Keras, ONNX) for supply-chain risks

AgentSQL io.github.cuipengdba/agentsql

Guard AI agents' PostgreSQL/MySQL access via MCP: SQL audit, auth, masking, write approval

mcp com.dechonet/mcp

30 security tools for AI agents: phishing links, exposure maps, DNS, SSL, PQC, history, pivots.

cern-inspire-mcp-server io.github.cyanheads/cern-inspire-mcp-server

Search INSPIRE-HEP papers, authors, experiments, HEPData records; get citation metrics and BibTeX.

Opus 5.5 com.llmotions.farm/opus-5-5

Authenticated async Opus 5.5 agent with status polling and artifact results.

Detect and redact PII, PHI, PCI and secrets in text and files before an AI agent sees them.

Authorization layer between AI agents and money: ALLOW/APPROVAL/DENY, budgets, audit.

docs com.empryo/docs

Search and read Empryo's documentation. Read-only, no auth, no local access.

Nostr-authenticated MCP server for secure YunoHost administration.

Fable 5.1 com.llmotions.farm/fable-5-1

Authenticated async Fable 5.1 agent with status polling and artifact results.

slopcheck app.vercel.slopcheck-one/slopcheck

Score a YouTube channel's upload pattern against YouTube's inauthentic-content policy.

Security-first, self-hosted MCP server for Firefly III — 152 operations behind 5 scoped tools.

guide-registry com.aiengineerprofessional/guide-registry

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

mcp-server io.twitterapi/mcp-server

Official twitterapi.io hosted MCP: Twitter/X tweets, users, followers, trends. OAuth or API key.

Danube AI com.danubeai/danube

Marketplace gateway: 100+ services and 1,400+ tools behind one MCP connection with unified auth

guide-registry guide.lawfirmleader/guide-registry

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

Local-first memory for AI agents: save, recall, dedupe, and share across MCP clients.

Deterministic authorization and security guard for AI agent actions with signed receipts.