MCP Server Directory

Nhtsa

NHTSA MCP — wraps the NHTSA vPIC (Vehicle Product Information Catalog) API (free, no auth)

numuersapi

NumbersAPI MCP — wraps numbersapi.com (free, no auth)

Open Elevation

Open-Elevation MCP — terrain elevation by lat/lon (no auth)

SureSMS

Send SMS, manage contacts and groups, and read delivery reports. OAuth 2.1 SureSMS login.

openalex

OpenAlex MCP — wraps the OpenAlex API (scholarly works, free, no auth)

EVM Slither audit (zero-arg demo + live) + Blockscout source + security.txt lookup + MCP probe.

Reddit

Reddit MCP — public Reddit data via JSON endpoints (no auth required)

poetry

Poetry MCP — PoetryDB API (free, no auth)

io.github.codespar/mcp-ap2

MCP server for AP2 — Google's Agent-to-Agent Payment Protocol (authorization, audit, trust)

swisstransport

Swiss Transport MCP — wraps Transport Open Data API (free, no auth)

timezone

Timezone MCP — wraps WorldTimeAPI (free, no auth)

stackexchange

StackExchange MCP — wraps the StackExchange API v2.3 (free, no auth required for read)

words

Words MCP — wraps Datamuse API (free, no auth required)

Statscan

Statistics Canada (StatCan) WDS MCP — Canadian official statistics (no auth)

io.github.duriantaco/skylos

Dead code, security, secrets detection and code quality for Python, TypeScript, Go.

sunrisesunset

Sunrise-Sunset MCP — wraps the sunrisesunset.io API (free, no auth)

io.github.rom-baro/arcwall-security

Security scanning for AI coding tools. Detects secrets, threat models, and runs pre-commit checks.

treasury

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

io.github.Agnuxo1/enigmagent-mcp

Local AES-256-GCM vault for AI agents. Secrets stay local, LLMs never see real API keys.

uselessfacts

Uselessfacts MCP — wraps uselessfacts.jsph.pl API (free, no auth)

Uk Ons

UK ONS MCP — Office for National Statistics (no auth)

Self-hosted GitHub MCP server

Self-hosted GitHub MCP server. PAT auth, stdio transport, transport-agnostic so it works with…

io.github.DunkelCloud/toolmesh

Self-hosted MCP gateway. Turn any REST API into MCP tools via YAML (DADL). Authz, audit, policies.

Usgs Volcano

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