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
ai.waystation/office
https://waystation.ai/office/mcp/sse
JSON-RPC error not listed waystation.ai
ai.waystation/postgres
https://waystation.ai/postgres/mcp
JSON-RPC error not listed waystation.ai
ai.waystation/postgres
https://waystation.ai/postgres/mcp/sse
JSON-RPC error not listed waystation.ai
ai.waystation/slack
https://waystation.ai/slack/mcp
JSON-RPC error not listed waystation.ai
ai.waystation/slack
https://waystation.ai/slack/mcp/sse
JSON-RPC error not listed waystation.ai
ai.waystation/supabase
https://waystation.ai/supabase/mcp
JSON-RPC error not listed waystation.ai
ai.waystation/supabase
https://waystation.ai/supabase/mcp/sse
JSON-RPC error not listed waystation.ai
ai.waystation/teams
https://waystation.ai/teams/mcp
JSON-RPC error not listed waystation.ai
ai.waystation/teams
https://waystation.ai/teams/mcp/sse
JSON-RPC error not listed waystation.ai
ai.waystation/wrike
https://waystation.ai/wrike/mcp
JSON-RPC error not listed waystation.ai
ai.waystation/wrike
https://waystation.ai/wrike/mcp/sse
JSON-RPC error not listed waystation.ai
ai.webanatomy/webanatomy
https://mcp.webanatomy.ai/mcp
gated, needs a credential not listed mcp.webanatomy.ai
ai.webhound/webhound
https://api.webhound.ai/api/v2/mcp
gated, needs a credential not listed api.webhound.ai
ai.websitepublisher/mcp
https://mcp.websitepublisher.ai/
gated, needs a credential not listed mcp.websitepublisher.ai
ai.wellnessproject/wellness-project
https://wellnessproject.ai/api/mcp
gated, needs a credential not listed wellnessproject.ai
ai.willform/willform-agent
https://agent.willform.ai/api/mcp
unreachable not listed agent.willform.ai
ai.windsor/windsor-mcp
https://mcp.windsor.ai/sse
404 not listed mcp.windsor.ai
ai.withone/mcp
https://mcp.withone.ai/mcp
gated, needs a credential not listed mcp.withone.ai
ai.wiv/mcp
https://mcp.wiv.ai/mcp
gated, needs a credential not listed mcp.wiv.ai
ai.wiv/mcp
https://mcp.wiv.ai/sse
gated, needs a credential not listed mcp.wiv.ai
ai.wizideo/wizideo
https://mcp.wizideo.ai/mcp
unreachable not listed mcp.wizideo.ai
ai.workingmemory/memory
https://app.workingmemory.ai/mcp
unreachable not listed app.workingmemory.ai
ai.workledge/workledge
https://mcp.workledge.ai/mcp
gated, needs a credential not listed mcp.workledge.ai
ai.writingmate/writingmate-mcp
https://writingmate.ai/api/mcp
gated, needs a credential not listed writingmate.ai
ai.xr-utilities/h-index
https://h-index.xr-utilities.ai/mcp
404 not listed h-index.xr-utilities.ai
ai.xurprise/mcp
https://xurprise.ai/api/mcp
unreachable not listed xurprise.ai
ai.yempik/company-brain
https://mcp.yempik.ai/mcp
gated, needs a credential not listed mcp.yempik.ai
ai.zencap/zencap
https://mcp.zencap.ai/mcp
gated, needs a credential not listed mcp.zencap.ai
ai.zentrik/mcp
https://zentrik.ai/mcp
gated, needs a credential not listed zentrik.ai
ai.zevari/mcp
https://mcp.zevari.ai/mcp
gated, needs a credential not listed mcp.zevari.ai
ai.zihin/mcp-server
https://llm.zihin.ai/mcp
gated, needs a credential not listed llm.zihin.ai
ai.zine/mcp
https://www.zine.ai/mcp
gated, needs a credential not listed www.zine.ai
am.mana/mana-public
https://mana.am/docs/mcp
JSON-RPC error not listed mana.am
am.mana/mana-public
https://mana.am/mcp
JSON-RPC error not listed mana.am
am.mana/mana-public
https://mana.am/api/mcp
JSON-RPC error not listed mana.am
am.mana/mana-public
https://mana.am/webmcp
JSON-RPC error not listed mana.am
am.sublime/sublime
https://api.sublime.am/mcp
gated, needs a credential not listed api.sublime.am
app.aiponge/mcp
https://mcp.aiponge.com/mcp
gated, needs a credential not listed mcp.aiponge.com
app.anakior/atlas-mind
https://{ATLAS_MCP_URL}
unreachable not listed {ATLAS_MCP_URL}
app.anamneseai/anamnese
https://anamneseai.app/api/mcp
404 not listed anamneseai.app
app.askloop/askloop
https://api.askloop.app/mcp
gated, needs a credential not listed api.askloop.app
app.aspirelearning/mcp
https://mcp.aspirelearning.app/mcp
unreachable not listed mcp.aspirelearning.app
app.aveiro/mcp
https://www.aveiro.app/api/mcp/mcp
gated, needs a credential not listed www.aveiro.app
app.baozugong/landlord
https://baozugong.app/api/mcp
gated, needs a credential not listed baozugong.app
app.bauta/bauta
https://bauta.app/mcp
gated, needs a credential not listed bauta.app
app.bestappify/shopify-app-store
https://bestappify.app/api/mcp
gated, needs a credential not listed bestappify.app
app.bonsave/bonsave
https://www.bonsave.app/api/mcp
gated, needs a credential not listed www.bonsave.app
app.branddock/branddock
https://branddock.app/mcp
gated, needs a credential not listed branddock.app
app.brickway/brickway
https://api.brickway.app/mcp
gated, needs a credential not listed api.brickway.app
app.busyboard/mcp
https://busyboard.app/api/mcp
gated, needs a credential not listed busyboard.app
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