MCP Server Directory

Pact 5 tooling: REPL test runs, trap scanning, gas estimation, interface diff, format checks.

Zero-auth research MCP: web, academic, finance, news, weather, macro, social, SEC. No keys.

Gmail Postmaster Tools v2 — domains, traffic metrics, and compliance via your own Google OAuth.

Security gate for agent-driven WhatsApp: allowlist, secret scan, rate limit, audit log.

Arxiv io.github.pipeworx-io/arxiv

arXiv MCP — preprint server search (free, no auth)

Agentic SDLC governance and security controls for AI coding agents working with GitHub.

Coingecko io.github.pipeworx-io/coingecko

CoinGecko MCP — wraps CoinGecko free API (no auth required)

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)

Gistemp io.github.pipeworx-io/gistemp

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

Greynoise io.github.pipeworx-io/greynoise

GreyNoise Community MCP — internet scanner classification (free tier with key)

Hkma Hk io.github.pipeworx-io/hkma-hk

Hong Kong Monetary Authority (HKMA) public open API MCP. Keyless.

Holidays io.github.pipeworx-io/holidays

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

Ipinfo io.github.pipeworx-io/ipinfo

IPInfo MCP — wraps ipinfo.io (free tier, no auth required for basic usage)

Iplookup io.github.pipeworx-io/iplookup

IP Lookup MCP — ip-api.com (free, no auth for basic usage)

Jsonplaceholder io.github.pipeworx-io/jsonplaceholder

JSONPlaceholder MCP — wraps JSONPlaceholder fake REST API (free, no auth)

Marine io.github.pipeworx-io/marine

Marine MCP — wraps marine-api.open-meteo.com (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)…