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
cloud.wavehouse/mcp
https://api.wavehouse.cloud/mcp
answered, not MCP not listed api.wavehouse.cloud
cloud.wavehouse/mcp
https://mcp.wavehouse.cloud/mcp
gated, needs a credential not listed mcp.wavehouse.cloud
cn.com.grapecity/gcexcel
https://mcp.grapecity.com.cn/mcp/gcexcel
JSON-RPC error not listed mcp.grapecity.com.cn
cn.com.grapecity/spreadjs
https://mcp.grapecity.com.cn/mcp/spreadjs
JSON-RPC error not listed mcp.grapecity.com.cn
cn.housingsentinel/housing-sentinel
https://api.housingsentinel.cn/mcp
gated, needs a credential not listed api.housingsentinel.cn
cn.syln.ai/lingjing-community
https://ai.syln.cn/sse
unreachable not listed ai.syln.cn
co.addcal/addcal
https://addcal.co/mcp
gated, needs a credential not listed addcal.co
ainumbers-apps
https://mcp.ainumbers.co/mcp
answers a handshake not listed mcp.ainumbers.co
co.aistoryhub/mcp
https://aistoryhub.co/mcp/mcp
gated, needs a credential not listed aistoryhub.co
co.axiom/mcp
https://mcp.axiom.co/sse
gated, needs a credential not listed mcp.axiom.co
co.axiom/mcp
https://mcp.axiom.co/mcp
gated, needs a credential not listed mcp.axiom.co
co.bulktranscripts/youtube
https://bulktranscripts.co/mcp
gated, needs a credential not listed bulktranscripts.co
co.callendar/mcp
https://app.callendar.de/mcp
404 not listed app.callendar.de
co.canopyapi/mcp
https://mcp.canopyapi.co/mcp
gated, needs a credential not listed mcp.canopyapi.co
co.churnkey/churnkey
https://mcp.churnkey.co/mcp
gated, needs a credential not listed mcp.churnkey.co
co.com.meteor/meteor
https://api.met.meteor.com.co/api/v1/mcp
gated, needs a credential not listed api.met.meteor.com.co
co.connic/mcp
https://mcp.connic.co/mcp
gated, needs a credential not listed mcp.connic.co
co.contraption/mcp
https://mcp.contraption.co/
404 not listed mcp.contraption.co
co.curie/commerce
https://chat.curie.app/api/mcp/{shop_id}
JSON-RPC error not listed chat.curie.app
co.dealwize/dealwize
https://api.dealwize.co/api/v1/mcp/sse
bad request not listed api.dealwize.co
co.dijin/memory
https://mcp.dijin.co/mcp
gated, needs a credential not listed mcp.dijin.co
co.dockai/mcp
https://mcp.dockai.co/mcp
unreachable not listed mcp.dockai.co
co.encorehq/encore
https://mcp.encorehq.co/mcp
gated, needs a credential not listed mcp.encorehq.co
co.encorehq/encore-pages
https://encore-pages-mcp.vercel.app/mcp
gated, needs a credential not listed encore-pages-mcp.vercel.app
co.fastaf/fastaf
https://api.fastaf.co/mcp
gated, needs a credential not listed api.fastaf.co
co.fingersai/fingers
https://fingersai.co/mcp
404 not listed fingersai.co
co.flow2/flow2
https://mcp.flow2.co/
gated, needs a credential not listed mcp.flow2.co
co.flyweel/mcp-server
https://api.flyweel.co/functions/v1/mcp-server/mcp
gated, needs a credential not listed api.flyweel.co
co.g3m/g3m
https://api.g3m.co/mcp/
gated, needs a credential not listed api.g3m.co
co.gemina/gemina
https://api.gemina.co/api/v1/mcp/
gated, needs a credential not listed api.gemina.co
lasso
https://lasso.link/mcp
answers a handshake not listed lasso.link
co.getvalyou/valyou
https://kojwpbbznaxyoxyqfacc.supabase.co/functions/v1/mcp
gated, needs a credential not listed kojwpbbznaxyoxyqfacc.supabase.co
co.geztio/platform
https://mcp.geztio.co/mcp
gated, needs a credential not listed mcp.geztio.co
co.gitresume/gitresume
https://gitresume.co/mcp
gated, needs a credential not listed gitresume.co
co.gleanit/gleanit
https://api.gleanit.co/api/mcp
gated, needs a credential not listed api.gleanit.co
co.godmodeai/sprites
https://www.godmodeai.co/api/mcp
gated, needs a credential not listed www.godmodeai.co
co.huggingface/hf-mcp-server
https://huggingface.co/mcp?login
gated, needs a credential not listed huggingface.co
co.jacktrade/jacktrade-crm
https://frostsa2.ed1.jacktrade.xyz/api/v2/mcp
server error not listed frostsa2.ed1.jacktrade.xyz
co.jacktrade/jacktrade-crm
https://frostsa2.ed1.jacktrade.xyz/jacktrade/mcp_api/v1/message
gated, needs a credential not listed frostsa2.ed1.jacktrade.xyz
co.kuickr/kuickr
https://kuickr.co/mcp
gated, needs a credential not listed kuickr.co
co.loopgolf/tee-times
https://www.loopgolf.co/api/ai/mcp
answered, not MCP not listed www.loopgolf.co
co.lovie/company-formation
https://mcp.lovie.co/mcp/mcp
unreachable not listed mcp.lovie.co
co.machins/marketplace
https://machins.co/mcp
404 not listed machins.co
co.milemarker.lp/mcp
https://mcp.milemarker.co/mcp
answered, not MCP not listed mcp.milemarker.co
co.milemarker/mcp
https://mcp.milemarker.co
answered, not MCP not listed mcp.milemarker.co
co.mindlify/mindlify
https://mindlify.co/api/mcp
gated, needs a credential not listed mindlify.co
co.nexalink/manage
https://nexalink.co/api/mcp
gated, needs a credential not listed nexalink.co
co.obto/obto
https://app.obto.co/ms/mcp
gated, needs a credential not listed app.obto.co
co.okahu.mcp-registry/okahu
https://mcp.okahu.co
404 not listed mcp.okahu.co
co.okahu.mcp-registry/okahu
https://mcp.okahu.co/mcp
gated, needs a credential not listed mcp.okahu.co
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