Servers you connect to by URL — nothing to install. All 21 317 of them have a network address, which means their uptime can actually be measured: 17 583 answered our last handshake and 4 951 ask who you are first, most of them through a browser sign-in rather than a key. Checked every 15 minutes.
17 583 answering 4 951 ask who you are 95% on streamable-http 261 106 tools
Securities-identifier validation MCP (ISIN / CUSIP).
ITIS (Integrated Taxonomic Information System) MCP.
Kroger MCP — grocery products, prices, and store locations (developer.kroger.com)
LegiScan MCP — wraps the LegiScan API (api.legiscan.com)
LibreTranslate MCP — open-source machine translation (BYO endpoint)
Luchtmeetnet MCP — official Netherlands air quality (RIVM Luchtmeetnet, api.luchtmeetnet.nl)
MakStat — State Statistical Office of North Macedonia, PxWeb MCP.
Markdown utilities MCP.
Meteors MCP — NASA fireball, near-Earth asteroid, and close approach data
Meteostat MCP — historical weather from 11k+ stations (no auth)
MFAPI.in MCP — Indian mutual-fund NAV (net asset value) data.
MyChem.info MCP.
MyDisease.info MCP.
MyVariant.info MCP.
n8n MCP — query your own n8n instance (BYO).
NASA CMR (Common Metadata Repository) MCP.
Phonetic & Morse code MCP.
Narodowy Bank Polski (National Bank of Poland) Web API MCP. Keyless.
NewsData.io MCP — wraps the NewsData.io global news API (newsdata.io)
On This Day MCP — wraps byabbe.se/on-this-day (free, no auth)
OpenCorporates MCP — Global company registry data (free, no auth, rate limited)
data.gov.my / OpenDOSM (Department of Statistics Malaysia) — official Malaysian open-data API.
OpenFEMA MCP — US Federal Emergency Management Agency open data.
OpenFIGI — Bloomberg open financial-instrument symbology service
OpenRouter Models MCP.
OpenTopography global DEM rasters + point queries (free key)
Open Tree of Life MCP.
OWID MCP — Our World in Data chart/indicator access (free, no auth)
PennDOT: quarterly EV, plug-in hybrid and total vehicle registrations by county and ZIP
Paleobiology Database (PBDB) MCP — the global fossil record. Keyless.
Politics Feeds MCP.
PredictIt MCP.
Human Protein Atlas (HPA) MCP — keyless.
PVGIS MCP — EU Joint Research Centre PV system modeler
Reddit MCP — public Reddit data via JSON endpoints (no auth required)
RemoteOK MCP — remote-work job board (tech-heavy), keyless.
Remotive MCP — curated remote-only job board
Rentcast MCP — wraps Rentcast API (api.rentcast.io/v1)
Research Organization Registry (ROR) — canonical org IDs
Statistical Office of the Republic of Slovenia (SURS) — SiStat PxWeb MCP.
Skiddle MCP.
Spacenews MCP — wraps the Spaceflight News API v4 (free, no auth)
Sports Feeds MCP.
National Bureau of Statistics of Moldova (Statbank) PxWeb MCP.
Tankerkoenig MCP — German real-time fuel prices (Benzinpreise) for all
Trade Intel MCP — Compound tools that chain Comtrade, Census, Treasury,
Tradier MCP — stock & options market data via the Tradier Brokerage API
Translate MCP — wraps LibreTranslate API (https://libretranslate.com/)
Transport Feeds MCP.
Travel Feeds MCP.
Trivia MCP — wraps Open Trivia Database (free, no auth)
Udbud.dk MCP — Danish government public procurement notices (keyless).
UK Health Security Agency (UKHSA) data dashboard MCP — keyless.
URL parsing & building MCP.
USGS Earthquake Catalog MCP (FDSNWS event API).
USGS Volcano MCP — Volcano Hazards Program HANS-public feed (no auth)
USGS Water Services (NWIS) MCP.
Videogames MCP — wraps Free-to-Play Games API (freetogame.com, free, no auth)
Visa Requirements MCP — passport visa rules for any nationality → destination pair
Visual Crossing Weather MCP — wraps the Visual Crossing Weather Timeline API
Internet Archive Wayback Machine MCP.
Real-time weather conditions and multi-day forecasts via Open-Meteo — free, no API key required
Environment and Climate Change Canada (ECCC) GeoMet MCP.
WhiskyHunter MCP.
World News Feeds MCP.
ZenQuotes MCP — wraps ZenQuotes API (free, no auth)
Live market data, financial analysis, and portfolio research tools across 10,000+ tickers.
Build browser games on gamedev.pl from your coding agent.
Provides YouCam API for AI image and video editing and generation.
Delegate 20 typed, evidence-backed WaveEngine signal work products with fixed-request x402.
Submit papers for AI peer review and publication. Search and cite AI-authored research.
Submit papers for AI peer review and publication. Search and cite AI-authored research.
RU merchant catalog for AI agents: live price, stock, choices and controlled checkout. Not x402.
End-to-end encrypted messaging and work coordination for autonomous AI agents.
China Air Quality MCP — nationwide hourly AQI from CNEMC (中国环境监测总站).
Authenticated public evidence search, verification, research jobs, exports, and webhooks.
ABS-EE (Reg AB II) trust-level rollups — auto loan / auto lease
Agent infra: email, phone, social, domains, VPS, wallets. Paid per-action via x402, no API key.
Create, inspect, and manage Wubble music, speech, voice, and sound-effect requests through MCP.
Agent MCP for DeFi: cross-chain LINQ fan-out, AMM quotes/swaps, bridge, AI. Solana+EVM. Free+x402.
Fill in 1,000+ legal PDF templates in many languages, get a signed PDF back. Free, no API key.
Free access to 3.3M French & EU court decisions + 1.5M law articles w/ history. 31 read-only tools
Query 692+ compliance frameworks, 13,700+ controls, and 280K+ cross-framework mappings.
ERP français avec serveur MCP natif : plus de 1 800 actions métier auto-générées via OpenAPI.
Ed25519-signed ground-truth oracle — 63 paid x402 tools live on Base mainnet.
ACLED MCP — Armed Conflict Location & Event Data Project
Agify MCP — age prediction from first name (agify.io, free, no auth)
Air Quality MCP — wraps air-quality-api.open-meteo.com (free, no auth)
arXiv MCP — preprint server search (free, no auth)
EBI BioSamples MCP.
EBI BioStudies MCP.
Brazil PNCP MCP — Brazilian government procurement (keyless).
NCI CACTUS Chemical Identifier Resolver MCP.
Canada Government Procurement MCP — CanadaBuys open data (keyless).
CDC MCP — wraps CDC open data via Socrata API (data.cdc.gov)
Colombia SECOP MCP — Colombian government procurement (public contracting).
CPSC MCP — US consumer-product safety recalls (CPSC, free, no auth).
Credit-card number validation MCP.
India Open Government Data (OGD) Platform MCP — data.gov.in
DiceBear MCP — wraps DiceBear Avatar API v7 (free, no auth)
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.