MCP Server Directory

Cataas

CATAAS MCP — Cat as a Service (free, no auth)

Veragent

Check the trust/security score of MCP servers, agents, skills & CLIs before you install them.

io.github.mdfifty50-boop/secure-vault

Encrypted secrets and credential management for agents

GribStream MCP

Hosted weather data MCP for discovery, validation, and OAuth-protected GribStream queries.

io.github.kota1026/quantumguard-mcp

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

Openbeautyfacts

Open Beauty Facts MCP — Open Beauty Facts API (free, no auth, keyless).

onthisday

On This Day MCP — wraps byabbe.se/on-this-day (free, no auth)

Reddit (RSS)

Read Reddit via public RSS feeds: browse subreddits, posts, comments, and search. No auth.

Pypi

PyPI MCP — wraps the Python Package Index (PyPI) JSON API (free, no auth).

Rubygems

RubyGems MCP — wraps the RubyGems.org public API (free, no auth)

exchange

Exchange MCP — wraps the Frankfurter currency exchange API (free, no auth)

mneme

Vault-native, accountable memory for Claude Code and MCP clients. Markdown is ground truth.

swapi

SWAPI MCP — wraps the Star Wars API (swapi.dev, free, no auth)

io.github.rudraneel93/mcp-guardian

Security, cost, and health governance proxy for MCP infrastructure

io.github.kaael1/mcp-power-automate

Local MCP for Power Automate with browser-backed auth, target locking, review diff, and rollback.

This is just a test publish, delete me

Hosted MCP server with managed OAuth for 15+ toolkits: Google Workspace, Fitbit, Oura, Kalshi, etc.

MCP Server for OSCAL

AI agent tools for Open Security Controls Assessment Language (OSCAL)

io.github.Anioko/archiet-xray

Deterministic repo architecture maps: auth coverage, blast radius, readiness score, diagrams

qrcode

QR Code MCP — wraps api.qrserver.com (free, no auth)

N-able N-central MCP

N-central REST API with an offline org-tree mirror, cross-tenant search, and a JWT-expiry guardian.

Sbir

SBIR MCP — wraps the SBIR.gov public API (free, no auth)

Tripwire

Security gateway for MCP agents: blocks prompt-injection-driven tool calls before they execute.

Ansvar: Dutch Law

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