MCP servers, called rather than listed

Every remote server in the official MCP registry, sent one real initialize handshake. 16,923 servers across 11,823 hosts.

Search what these servers can do · read the measurement

Last checked 2026-09-06. We send a handshake, we do not authenticate and we do not call a tool.

Gated is not broken. 4,068 of these servers answer with a 401 or 403. They are running and want a credential we do not have. A checker that treats them as dead is wrong about 24.0% of the registry before it starts, so we count them separately and always will.

16,923 matching.

serverresulttoolshost
a2awire
https://a2awire.com/mcp/data/scinews-latest-science-news-breakthrough-headlines-45fb62/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/llmwatch-new-llm-releases-serving-availability-50d6f9/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/marinewatch-live-noaa-marine-buoy-observations-b6e91c/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/trialwatch-new-clinical-trials-medical-research-results-0f9d9f/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/huggingface-new-dataset-release-tracker-hfdatasets-47948f/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/new-mcp-server-directory-agent-tools-index-8f68ac/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/huggingface-new-model-release-tracker-hfmodelwatch-3fa69f/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/npmwatch-new-npm-package-releases-javascript-dependency-updates-9aad2b/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/pmnews-prediction-market-news-index-cbfb9d/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/producthuntwatch-new-product-hunt-launches-hourly-a96189/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/pypiwatch-new-pypi-package-releases-python-dependency-updates-dffb95/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/riverwatch-usgs-river-levels-stream-flow-gauges-dc094e/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/launchwatch-rocket-launch-schedule-index-b9d878/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/scibreak-new-research-papers-science-breakthroughs-5bc973/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/biopreprintwatch-new-life-science-preprints-biorxiv-medrxiv-77a31b/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/spaceweather-solar-geomagnetic-activity-index-632aa8/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/ghtrend-fast-growing-new-github-repositories-01390c/http
answers a handshake 16 a2awire.com
a2awire
https://a2awire.com/mcp/data/usweather-us-weather-alerts-nws-active-ca26b1/http
answers a handshake 16 a2awire.com
atom-marketplace-mcp-server
https://mcp.atom.com/mcp
answers a handshake 16 mcp.atom.com
aribot-mcp
https://mcp.aribot.ayurak.com/
answers a handshake 16 mcp.aribot.ayurak.com
aribot-mcp
https://mcp.aribot.ayurak.com/sse
answers a handshake 16 mcp.aribot.ayurak.com
blockscout-mcp-server
https://mcp.blockscout.com/mcp
answers a handshake 16 mcp.blockscout.com
debitura
https://mcp.debitura.com/mcp
answers a handshake 16 mcp.debitura.com
gitbuyer
https://gitbuyer.com/mcp
answers a handshake 16 gitbuyer.com
glasswarp
https://mcp.glasswarp.com/mcp
answers a handshake 16 mcp.glasswarp.com
gumball
https://gumballtools.com/api/mcp
answers a handshake 16 gumballtools.com
jojapi-openai-sora
https://mcp.jojapi.com/openai-sora
answers a handshake 16 mcp.jojapi.com
pdf-mcp-server
https://mcp.kdandoc.com/mcp
answers a handshake 16 mcp.kdandoc.com
Lawstronaut MCP
https://mcp.lawstronaut.com
answers a handshake 16 mcp.lawstronaut.com
merlonix
https://api.merlonix.com/mcp
answers a handshake 16 api.merlonix.com
sec-fundamentals
https://sec.multyplylabs.com/mcp
answers a handshake 16 sec.multyplylabs.com
naibul
https://naibul.com/mcp
answers a handshake 16 naibul.com
agentic-endpoints
https://ai.oliverkiss.com/mcp
answers a handshake 16 ai.oliverkiss.com
progenly
https://progenly.com/mcp
answers a handshake 16 progenly.com
publora
https://mcp.publora.com/mcp
answers a handshake 16 mcp.publora.com
roxy-chinese-astrology
https://roxyapi.com/mcp/chinese-astrology
answers a handshake 16 roxyapi.com
sigrank
https://signalaf.com/api/mcp
answers a handshake 16 signalaf.com
teppek
https://mcp.teppek.com/mcp
answers a handshake 16 mcp.teppek.com
mailx-deliverability
https://themailx.com/mcp
answers a handshake 16 themailx.com
alter-identity
https://mcp.truealter.com/api/v1/mcp
answers a handshake 16 mcp.truealter.com
slop
https://useslop.com/api/mcp
answers a handshake 16 useslop.com
WalnaiWebsite
https://walnai.com/mcp
answers a handshake 16 walnai.com
dns-doctor
https://dnsdoctor.dev/mcp
answers a handshake 16 dnsdoctor.dev
domainee
https://mcp.domainee.dev/mcp
answers a handshake 16 mcp.domainee.dev
aura
https://aura.rohnelt.dev/mcp
answers a handshake 16 aura.rohnelt.dev
tmpstate
https://tmpstate.dev/mcp
answers a handshake 16 tmpstate.dev
long-events
https://belong.events/functions/v1/mcp-server/mcp
answers a handshake 16 belong.events
myplate-food-mcp
https://mcp.myplate.food/mcp
answers a handshake 16 mcp.myplate.food
rental-rootz
https://rental.rootz.global/mcp
answers a handshake 16 rental.rootz.global
etherscan-mcp
https://mcp-keyless.etherscan.io/mcp
answers a handshake 16 mcp-keyless.etherscan.io
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