MCP Server Directory

IP geolocation, security, ASN, abuse, time zones, astronomy, and user-agent parsing over stdio.

Post-quantum cryptography security scanner. Detect ECDSA/RSA vulnerabilities, NIST compliance.

Security proxy that automatically wraps MCP servers with real-time monitoring and policy enforcement

Remote MCP security gateway for auth, redaction, policy enforcement, and audit logging.

nexus-mcp io.github.nexus-api-lab/nexus-mcp

Japanese LLM security — prompt injection detection (jpi-guard) + PII masking (PII Guard). Free.

agentlock io.github.Olum289/agentlock

Security gateway for AI agents: policy, approval, and audited execution, no secrets shared.

Moved to com.dechonet/mcp. 25 security tools, hosted at https://dechonet.com/mcp

MCP server for DNS lookups, reverse DNS, WHOIS, and domain checks — zero auth, zero config

TomeVault io.github.olijboyd/tomevault

Check AI instruction files, look up a company's record, and keep a dated record of your own.

An MCP server that provides tools to author OSCAL security compliance documentation

Privacy compliance scanning for AI coding tools. Detects tracking tech, cookies, and data gaps.

Parse a document into structured, confidence-scored fields. Bring your own model, pay per scan.

Give AI agents a real email address, vault, calendar, and task delegation via MCP.

Alienvault Otx io.github.pipeworx-io/alienvault-otx

AlienVault OTX MCP — Open Threat Exchange (free with key)

Bis io.github.pipeworx-io/bis

BIS MCP — Bank for International Settlements statistics (no auth)

Émile io.github.SebastienGal/emile-wine

MCP server for the Émile wine cellar — list, add, recommend, scan and search 100k+ wines.

Thrd MCP: agent email tools for events/threads, safe send/reply, usage, trust and security.

Cpsc io.github.pipeworx-io/cpsc

CPSC MCP — US consumer-product safety recalls (CPSC, free, no auth).

Devto io.github.pipeworx-io/devto

DEV.to MCP — wraps the DEV Community API (free, no auth for public reads)

Dicebear io.github.pipeworx-io/dicebear

DiceBear MCP — wraps DiceBear Avatar API v7 (free, no auth)

Disease io.github.pipeworx-io/disease

Disease MCP — wraps disease.sh API (COVID-19 statistics, no auth required)

Catalyst Governance io.github.Stratogenic-AI/catalyst

Governance middleware for AI agents: permission gates, approvals, compliance scanning, audit ledger.

Epa Echo io.github.pipeworx-io/epa-echo

EPA ECHO MCP — wraps EPA ECHO Web Services (free, no auth)

Epa Emissions io.github.pipeworx-io/epa-emissions

EPA Emissions MCP — wraps EPA Envirofacts REST API (free, no auth)