MCP Server Directory

Authority-weighted memory graph for AI agents with conflict detection and semantic search.

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

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

ArchGraph dev.archgraph/mcp

Code intelligence platform for AI agents. 20 tools for architecture, security & impact analysis.

Every Action1 endpoint, plus fleet-wide patch and vulnerability views across all your organizations.

Governs what AI agents do: tool calls, SQL, commands, files checked against policy before they run.

MCP Kill-Chain Research — Stage 1 (Identity ≠ Behavior) dev.gtfo/mcp-killchain-stage1-weather

Security research: MCP registries verify identity, not tool behavior. See gtfo.dev.

Catalyst Governance io.github.Stratogenic-AI/catalyst

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

Faa Delays io.github.pipeworx-io/faa-delays

FAA Delays MCP — live US airport operational status (FAA, free, no auth).

Ansvar: German Law eu.ansvar/german-law

German law via Ansvar Gateway. Cited, OAuth + paid tier.

Deterministic, zero-token security scanner your AI agent calls to find and re-verify issues.

Jokes io.github.pipeworx-io/jokes

Jokes MCP — wraps JokeAPI v2 (free, no auth)

Oecd io.github.pipeworx-io/oecd

OECD MCP — Organisation for Economic Co-operation and Development data (free, no auth) via the…

Rick And Morty io.github.pipeworx-io/rick-and-morty

Rick and Morty MCP — wraps the Rick and Morty API (free, no auth)

rickmorty io.github.pipeworx-io/rickmorty

Rick and Morty MCP — wraps The Rick and Morty API (free, no auth)

treasury io.github.pipeworx-io/treasury

Treasury MCP — US Treasury Fiscal Data public API (free, no auth)

Scan codebases for LLM/AI SDK usage, exposed API tokens, and hardcoded secrets.

Tvmaze io.github.pipeworx-io/tvmaze

TVMaze MCP — TV show metadata, episodes, schedules (no auth)

Usgs Volcano io.github.pipeworx-io/usgs-volcano

USGS Volcano MCP — Volcano Hazards Program HANS-public feed (no auth)

MeSquared Visibility io.github.rmach816/mesquared-mcp-server

Public-site SEO/AEO readiness scans with evidence scores, issues, and clear measurement scope.

Verifiable text/code/measurement tools for agents, each reproducing a named authority.

MCP server for PR code review, commit messages, changelogs, and secret detection.

Stdio MCP auth proxy: wrap any MCP server with per-tool permission enforcement.

AI agent governance: content scanning, audit logs, policy evaluation, session management.

scamcheck-mcp-server io.github.smijo-geek/scamcheck-mcp-server

Scan suspicious messages, URLs, and text for scams with AI. Free tier - no API key required.