Servers you connect to by URL — nothing to install. All 10 198 of them have a network address, which means their uptime can actually be measured: 8 135 answered our last handshake and 2 955 require a key or an OAuth login. Checked every 15 minutes.
8 135 answering 2 955 need a key 92% on streamable-http 107 537 tools
Negative results intelligence for drug discovery — query measured failures via MCP.
The issue tracker AI coding agents pull work from: atomic claims, dependency-aware dispatch.
Monero/Zcash payment webhooks + DeFi liquidation & Ethereum builder data over MCP. Free tier; x402.
Financial & accounting management on Omie (Brazil's leading cloud ERP), payables/receivables, financ
Abgeordnetenwatch MCP — German federal & state parliament data.
adsb.lol MCP — live aircraft tracking via community ADS-B.
AI Incident Database (AIID) MCP
EPA AirNow MCP — official US real-time AQI + forecast (free key)
AlphaFold DB MCP — predicted protein structures.
Amtrak MCP — live Amtrak train tracking via the community Amtraker API
APIs.guru MCP — keyless directory of 2,500+ public APIs and their OpenAPI specs.
Archive MCP — wraps the Internet Archive APIs (free, no auth)
Art Institute of Chicago MCP — wraps the ARTIC public API (free, no auth)
BART MCP — San Francisco Bay Area Rapid Transit real-time data (api.bart.gov)
Bioregistry — meta-registry of biomedical identifier prefixes
bioRxiv + medRxiv preprint server API
BLS MCP — Bureau of Labor Statistics public data API (v2)
Books MCP — wraps Open Library API (free, no auth)
BPstat — Banco de Portugal statistics API (Portuguese central bank). Keyless.
Bundlephobia MCP — npm bundle-size analysis
caniuse MCP — browser feature support tables
cBioPortal MCP — cancer genomics portal.
Israel Central Bureau of Statistics (CBS / הלשכה המרכזית לסטטיסטיקה) MCP.
Hong Kong Census and Statistics Department (C&SD) open-data MCP.
Census Trade MCP — US Census Bureau International Trade data
Chess.com MCP — wraps the Chess.com public API (free, no auth)
Chuck Norris MCP — wraps chucknorris.io (free, no auth)
CISA Known Exploited Vulnerabilities catalog
Citybikes MCP — wraps CityBik.es API (free, no auth required)
Cleveland Museum of Art Open Access API (~63k artworks, many CC0)
Cloudflare Radar MCP — internet observatory (traffic, attacks, BGP, quality)
Cocktails MCP — TheCocktailDB API (free, no auth)
Codewars user profiles, completed kata, authored kata, kata detail. Keyless.
CoinGecko MCP — wraps CoinGecko free API (no auth required)
Comtrade MCP — UN Comtrade API for international bilateral trade data
Coordinate geometry MCP.
Cricket MCP — wraps CricAPI (api.cricapi.com) for live cricket data.
Ireland Central Statistics Office (CSO) PxStat MCP.
CTA MCP — Chicago Transit Authority real-time trains ('L') + buses
Czech Statistical Office (Český statistický úřad, ČSÚ) open-data MCP.
data.ny.gov — New York State open-data Socrata portal
data.gov.uk MCP — UK national open-data portal (CKAN API).
Harvard Dataverse — research dataset repository (~150k datasets)
datos.gob.es — Spanish open-data catalogue
DBpedia MCP — SPARQL + Lookup over Wikipedia-derived structured data
Disease MCP — wraps disease.sh API (COVID-19 statistics, no auth required)
D&D 5e MCP — wraps the D&D 5th Edition API (free, no auth)
DOAJ MCP — Directory of Open Access Journals
Docker Hub MCP — wraps the Docker Hub v2 API (free, no auth required for public data)
Dog CEO MCP — wraps Dog CEO's Dog API (free, no auth)
DogsAPI MCP — wraps dogapi.dog v2 API (free, no auth)
ECB Data Portal MCP — European Central Bank statistical data
eCFR (Electronic Code of Federal Regulations) MCP.
Econdata MCP — wraps BLS (Bureau of Labor Statistics) public API v2
ECOS — Bank of Korea Economic Statistics System.
Encyclopedia of Life (EOL) — biodiversity taxa, names, hierarchies
e-Stat (Japan) MCP — government statistics
EU Funding & Tenders Portal (SEDIA search API) MCP.
European Parliament Open Data — MEPs, plenary docs, sessions
Exchange MCP — wraps the Frankfurter currency exchange API (free, no auth)
F1 MCP — Formula 1 data via the Ergast API
FAS MCP — USDA Foreign Agricultural Service (trade & global production data)
MCP server for fcc-ecfs
abuse.ch Feodo Tracker botnet C&C IP blocklist
Finnhub MCP — wraps Finnhub Stock API (finnhub.io)
FINRA Reg SHO daily short-sale volume.
US motor-carrier registry: DOT/MC/name lookup, operating authority, safety — keyless
Finnish Meteorological Institute open data (forecast, observations, warnings)
Frankfurter MCP — wraps Frankfurter API (api.frankfurter.dev)
Funcheap (SF Bay Area) MCP.
Gamedeals MCP — wraps CheapShark API (game deal aggregator, no auth required)
GBIF MCP — wraps the Global Biodiversity Information Facility API v1 (free, no auth)
GDACS — Global Disaster Alert & Coordination System (EQ/TC/FL/VO/DR/WF)
NCI Genomic Data Commons (GDC) MCP.
GDELT MCP — Global Database of Events, Language, and Tone (free, no auth)
Genius MCP — wraps the Genius API (api.genius.com)
Geoapify MCP — wraps the Geoapify Location Platform (geoapify.com)
Geographic coordinate math MCP.
GeoNames MCP — GeoNames geographical database API
Google Books MCP
Google Analytics MCP Pack
Google Search Console MCP Pack
Go module proxy — module info, versions, go.mod
IUPHAR/BPS Guide to PHARMACOLOGY (GtoPdb) MCP — keyless.
Gutendex MCP — wraps Gutendex API for Project Gutenberg books (free, no auth)
HAL — French national open research archive
Harry Potter API MCP (hp-api.onrender.com) — keyless.
Humanitarian Data Exchange (HDX) MCP — data.humdata.org, the open
HERE MCP — premium geocoding, places, and TRAFFIC-AWARE routing from HERE
NASA JPL Horizons — solar-system body ephemerides
IMDB MCP — title metadata, ratings, episodes, and crew from IMDB's
IPQualityScore MCP — wraps the IPQualityScore fraud-prevention API
iRail MCP — Belgian rail (SNCB/NMBS) real-time via the community iRail API
ISO Standards MCP — hosted.
Jikan MCP — wraps the Jikan v4 API (anime/manga data, free, no auth)
Jira MCP Pack
Jokes MCP — wraps JokeAPI v2 (free, no auth)
NASA/JPL Solar System Dynamics + CNEOS MCP.
JSONPlaceholder MCP — wraps JSONPlaceholder fake REST API (free, no auth)
Kolada (RKA) MCP — Sweden's municipal & regional key-performance-indicator (KPI) database.
Vendors publish one server each. Stripe, Notion, Figma, Slack, Linear — one entry apiece, no competing copies.
What does produce dozens of entries under one name is hosting: 75 servers sit on
clauxel.com, 66 on alpic.live, most of them someone's staging
environment that ended up in the registry. They are listed here like everything else,
with whatever status they actually have.