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
org.memoryapi/contracts
https://contracts.memoryapi.org/mcp
unreachable not listed contracts.memoryapi.org
org.memoryapi/legal
https://legal.memoryapi.org/mcp
server error not listed legal.memoryapi.org
org.memoryapi/nasa
https://nasa.memoryapi.org/mcp
server error not listed nasa.memoryapi.org
org.memoryapi/news
https://news.memoryapi.org/mcp
server error not listed news.memoryapi.org
org.memoryapi/rep
https://rep.memoryapi.org/mcp
unreachable not listed rep.memoryapi.org
org.notcve/vulnerability-intelligence
https://notcve.org/mcp
gated, needs a credential not listed notcve.org
org.openoak/openoak
https://mcp.openoak.org
gated, needs a credential not listed mcp.openoak.org
org.orivox/website-builder
https://mcp.orivox.org/mcp
gated, needs a credential not listed mcp.orivox.org
org.proxykey/proxykey
https://mcp.proxykey.org/mcp
gated, needs a credential not listed mcp.proxykey.org
org.r3js/r3
https://mcp.r3js.org/mcp
gated, needs a credential not listed mcp.r3js.org
org.runlog/runlog
https://api.runlog.org/mcp
unreachable not listed api.runlog.org
org.svgai/svg-ai
https://www.svgai.org/api/mcp
gated, needs a credential not listed www.svgai.org
org.swapp1990.writer/writer
https://writer.swapp1990.org/mcp/v2/
gated, needs a credential not listed writer.swapp1990.org
org.toolapi/hub
https://toolapi.org/sse
bad request not listed toolapi.org
org.ukrfish.sk/sudnokontrol
https://api.sk.ukrfish.org/mcp
unreachable not listed api.sk.ukrfish.org
org.unyly/gateway
https://gateway.unyly.org/mcp
gated, needs a credential not listed gateway.unyly.org
org.webgcp/catalog
https://catalog.myparallel.dev/sse
404 not listed catalog.myparallel.dev
page.anew/anew
https://anew.page/mcp
JSON-RPC error not listed anew.page
page.details/details-page
https://details.page/mcp
gated, needs a credential not listed details.page
page.infra/mcp
https://infra.page/mcp
gated, needs a credential not listed infra.page
page.quicky/quickypage
https://quicky.page/mcp
gated, needs a credential not listed quicky.page
pe.xi/xipe
https://xi.pe/mcp
unreachable not listed xi.pe
pizza.redirect/mcp
https://redirect.pizza/mcp
gated, needs a credential not listed redirect.pizza
pl.cenogram/mcp-server
https://mcp.cenogram.pl/mcp
gated, needs a credential not listed mcp.cenogram.pl
pl.gamedev/creator
https://www.gamedev.pl/api/mcp
gated, needs a credential not listed www.gamedev.pl
HPControl Agentic Commerce
https://hpcontrol.pl/agent/mcp
answers a handshake not listed hpcontrol.pl
pl.iteon/mcp
https://api.iteon.pl/api/v1/mcp
gated, needs a credential not listed api.iteon.pl
pl.prawmi/legal-research
https://api.prawmi.pl/mcp
gated, needs a credential not listed api.prawmi.pl
place.clubs/nippo
https://clubs.place/api/nippo/mcp
gated, needs a credential not listed clubs.place
plus.gym/gym-plus
https://gym.plus/api/mcp
gated, needs a credential not listed gym.plus
pro.aon/mcp
https://api.aon.pro/v1/mcp
gated, needs a credential not listed api.aon.pro
pro.bananabanana/image-video
https://bananabanana.pro/mcp
gated, needs a credential not listed bananabanana.pro
pro.bananabanana/image-video
https://bananabanana.pro/api/mcp
gated, needs a credential not listed bananabanana.pro
pro.begonia/begonia-pro
https://www.begonia.pro/mcp
gated, needs a credential not listed www.begonia.pro
pro.chat-master/chat-master
https://chat-master.pro/mcp/v1
gated, needs a credential not listed chat-master.pro
pro.formdesigner/mcp-server
https://mcp.formdesigner.pro/v1/mcp
gated, needs a credential not listed mcp.formdesigner.pro
pro.ledgerhq/ledgerhq
https://ledgerhq.pro/api/mcp
gated, needs a credential not listed ledgerhq.pro
pro.logobaker/connector
https://api.logobaker.pro/mcp
gated, needs a credential not listed api.logobaker.pro
pro.magicmaster/mastering
https://magicmaster.pro/mcp/oauth
gated, needs a credential not listed magicmaster.pro
pro.nomos/nomos-mcp
https://mcp.nomos.pro/mcp
gated, needs a credential not listed mcp.nomos.pro
pro.particle/particle-pro
https://mcp.particle.pro
bad request not listed mcp.particle.pro
pro.pixeldrive/pixeldrive
https://pixeldrive.pro/mcp
gated, needs a credential not listed pixeldrive.pro
pro.plainsight/mcp
https://playbook-mcp.plainsight.pro/mcp
unreachable not listed playbook-mcp.plainsight.pro
pro.publifye/currency
https://currency.publifye.pro/mcp
gated, needs a credential not listed currency.publifye.pro
pro.publifye/darash
https://darash-api.publifye.pro/mcp
gated, needs a credential not listed darash-api.publifye.pro
pro.publifye/junifye
https://junifye.publifye.pro/mcp
gated, needs a credential not listed junifye.publifye.pro
pro.publifye/lexifye
https://lexifye.publifye.pro/mcp
gated, needs a credential not listed lexifye.publifye.pro
pt.carvox/cars
https://www.carvox.pt/api/mcp
answered, not MCP not listed www.carvox.pt
pt.lexbase/legislacao-portuguesa
https://api.lexbase.pt/mcp
gated, needs a credential not listed api.lexbase.pt
pw.hubris/hubris-mcp
https://api.hubris.pw/mcp
gated, needs a credential not listed api.hubris.pw
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