MCP Server Directory

Analyze code quality and security with SonarQube Server or Cloud directly in AI assistants.

WaveGuard com.emergentphysicslab/waveguard

Anomaly detection API powered by physics simulation. Scan any data for outliers.

x402-paid domain verification for AI agents — trustscore, SSL, security headers, robots.

Exchange io.github.pipeworx-io/exchange

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

Federal Register io.github.pipeworx-io/federal-register

Federal Register MCP — US Federal Register API (free, no auth)

Ansvar: Dutch Law eu.ansvar/dutch-law

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

Gbif io.github.pipeworx-io/gbif

GBIF MCP — wraps the Global Biodiversity Information Facility API v1 (free, no auth)

Gistemp io.github.pipeworx-io/gistemp

GISTEMP MCP — NASA Goddard Institute for Space Studies Surface Temperature Analysis (free, no auth)

Github io.github.pipeworx-io/github

GitHub MCP — wraps the GitHub public REST API (no auth required for public endpoints)

Holidays io.github.pipeworx-io/holidays

Holidays MCP — wraps Nager.Date API (free, no auth)

Inaturalist io.github.pipeworx-io/inaturalist

iNaturalist MCP — citizen-science species observations (free, no auth for read-only)

Jikan io.github.pipeworx-io/jikan

Jikan MCP — wraps the Jikan v4 API (anime/manga data, free, no auth)

Mastodon io.github.pipeworx-io/mastodon

Mastodon MCP — public Mastodon data via mastodon.social (no auth required)

Movies io.github.pipeworx-io/movies

Movies MCP — wraps iTunes Search API (movies, free, no auth) and TVmaze API (TV shows, free, no…

Foresea Forecasting ink.foresea/forecasting

Forecast future events and scan prediction-market edges.

Nhtsa io.github.pipeworx-io/nhtsa

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

Npm io.github.pipeworx-io/npm

npm MCP — wraps the npm Registry API (free, no auth)

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

Propublica Nonprofit io.github.pipeworx-io/propublica-nonprofit

ProPublica Nonprofit MCP — ProPublica Nonprofit Explorer API (free, no auth)

GribStream Weather MCP com.gribstream/mcp

NOAA and ECMWF weather forecast MCP for discovery, validation, and GribStream OAuth queries.

Security scanner for AI Agent skills, plugins, and MCP servers with A-F grading.

Rxnorm io.github.pipeworx-io/rxnorm

RxNorm MCP — wraps the NLM RxNav REST API (free, no auth)

Stackexchange io.github.pipeworx-io/stackexchange

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

Swapi io.github.pipeworx-io/swapi

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