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
io.github.kultur-dev/kultur-dev
https://kultur.dev/api/mcp-sse/sse
unreachable not listed kultur.dev
io.github.kulybaba/weather
https://kulybaba.weather.com/mcp
unreachable not listed kulybaba.weather.com
io.github.kulybaba/weather
https://kulybaba.weather.com/mcp/v4.0.0/
unreachable not listed kulybaba.weather.com
io.github.kulybaba/weather-mcp
https://kulybaba.weather.com/mcp/v3.0.0/
unreachable not listed kulybaba.weather.com
io.github.kunal-lead411/lead411
https://mcp.lead411.com
404 not listed mcp.lead411.com
io.github.kushaim/ftthelper-mcp
https://www.fantasytabletophelper.com/api/mcp
gated, needs a credential not listed www.fantasytabletophelper.com
io.github.kynosure-ai/norma-mcp-server
https://norma-mcp.kynosure.ai/mcp
server error not listed norma-mcp.kynosure.ai
io.github.labfolio/labfolio
https://mcp.labfolio.org
gated, needs a credential not listed mcp.labfolio.org
io.github.labrat-0/rxradar
https://mcp.rxradar.dev/mcp
unreachable not listed mcp.rxradar.dev
io.github.labsfuture/revit-converter-remote-mcp-release
https://labsaps-d35810f00db3.herokuapp.com/mcp
gated, needs a credential not listed labsaps-d35810f00db3.herokuapp.com
io.github.labstack/fanout
https://{fanout_host}/mcp
unreachable not listed {fanout_host}
io.github.labstack/monk
https://monk.trade/mcp
gated, needs a credential not listed monk.trade
ScholarFetch FastMCP
https://laibniz-scholarfetch-web.hf.space/mcp/
answers a handshake not listed laibniz-scholarfetch-web.hf.space
io.github.langhoormarchal-beep/calmactiva-catalog
https://calmactiva.com/mcp
answered, not MCP not listed calmactiva.com
io.github.laxis-tech/laxis-mcp
https://app.laxis.tech/mcp
gated, needs a credential not listed app.laxis.tech
io.github.layers/mcp
https://mcp.layers.com/mcp
gated, needs a credential not listed mcp.layers.com
io.github.layerzlabs/layerz
https://app.layerz.cc/mcp
gated, needs a credential not listed app.layerz.cc
io.github.layerzlabs/layerz
https://layerz.cc/mcp
gated, needs a credential not listed layerz.cc
io.github.lazymac2x/api-landing
https://api.lazy-mac.com/api-landing/mcp
answered, not MCP not listed api.lazy-mac.com
io.github.lazymac2x/form-backend
https://api.lazy-mac.com/form-backend/mcp
answered, not MCP not listed api.lazy-mac.com
io.github.leadbay/leadbay-mcp
https://mcp.leadbay.app/mcp
gated, needs a credential not listed mcp.leadbay.app
io.github.left-handed-grannies/comitelligence
https://comitelligence-mcp.onrender.com/sse
answered, not MCP not listed comitelligence-mcp.onrender.com
io.github.lemonadolabs/lemonado-mcp-server
https://mcp.lemonado.io/mcp
gated, needs a credential not listed mcp.lemonado.io
io.github.leo-runningcoach/coachleo
https://mcp.coachleo.ai/mcp
gated, needs a credential not listed mcp.coachleo.ai
io.github.leocelis/horizon-fidelity-monitor
https://horizon.leocelis.com/sse
gated, needs a credential not listed horizon.leocelis.com
io.github.leocelis/ivd
https://mcp.ivdframework.dev/mcp
gated, needs a credential not listed mcp.ivdframework.dev
io.github.leonidahqadmin-cell/to1-fleet
https://to1.deadbeatradar.com/mcp/fleet
answered, not MCP not listed to1.deadbeatradar.com
io.github.leosuhail-cmd/check-before-you-pay
https://check.opulencedigitech.ca/mcp
server error not listed check.opulencedigitech.ca
io.github.leshchenko1979/fast-mcp-telegram
https://tg-mcp.l1979.ru/v1/mcp
unreachable not listed tg-mcp.l1979.ru
io.github.letroi77/clipzyn-mcp
https://clipzyn-mcp-production.up.railway.app/mcp
gated, needs a credential not listed clipzyn-mcp-production.up.railway.app
io.github.lexsocket/mcp-eurlex
https://mcp.lexsocket.ai/eurlex/
unreachable not listed mcp.lexsocket.ai
io.github.lexsocket/mcp-ted
https://mcp.lexsocket.ai/ted/
unreachable not listed mcp.lexsocket.ai
io.github.lgpoliveira/bugiadata-mcp
https://mcp.bugiadata.com/sse
gated, needs a credential not listed mcp.bugiadata.com
io.github.lichtsalz/korea-data
https://notonlystock.com/korea/mcp
gated, needs a credential not listed notonlystock.com
io.github.liftli-ai/liftli
https://liftli-strategist-mcp.onrender.com/mcp
gated, needs a credential not listed liftli-strategist-mcp.onrender.com
io.github.ligafew/apcs-public-mcp-gateway
https://apcs-public-mcp-gateway.itsnotevenbutter03.workers.dev/mcp
JSON-RPC error not listed apcs-public-mcp-gateway.itsnotevenbutter03.workers.dev
io.github.ligafew/apcs-pypi-package-verification
https://apcs-public-mcp-gateway.itsnotevenbutter03.workers.dev/mcp/python-package-verification
JSON-RPC error not listed apcs-public-mcp-gateway.itsnotevenbutter03.workers.dev
io.github.ligafew/python-package-runtime-test
https://apcs-public-mcp-gateway.itsnotevenbutter03.workers.dev/mcp/python-package-runtime-test
JSON-RPC error not listed apcs-public-mcp-gateway.itsnotevenbutter03.workers.dev
io.github.lightbrushproject/autonomous-prime
https://the-agentcy-production.up.railway.app/marketplace/mcp/tools
404 not listed the-agentcy-production.up.railway.app
io.github.liknenS/patchrooms
https://room.patchrooms.com/mcp
gated, needs a credential not listed room.patchrooms.com
io.github.lildaddyo/braintube-mcp
https://brain-tube.com/mcp
server error not listed brain-tube.com
io.github.lildaddyo/braintube-mcp
https://mcp.brain-tube.com/mcp
gated, needs a credential not listed mcp.brain-tube.com
io.github.lindoai/mcp-server
https://mcp.lindo.ai/mcp
gated, needs a credential not listed mcp.lindo.ai
io.github.lineofflight/frankfurter
https://mcp.frankfurter.dev/mcp
404 not listed mcp.frankfurter.dev
io.github.linglistack/linkednav-mcp
https://mcp.linkednav.com/
gated, needs a credential not listed mcp.linkednav.com
io.github.linkedmash/linkedmash
https://mcp.linkedmash.com/api/mcp
gated, needs a credential not listed mcp.linkedmash.com
io.github.linxule/durable-thinking
https://{worker_host}/mcp-compat
unreachable not listed {worker_host}
io.github.lio1204/what2watch-mcp
https://what2watch.live/sse
server error not listed what2watch.live
io.github.liserichards/pestprocrm
https://www.pestprocrm.com/api/mcp
gated, needs a credential not listed www.pestprocrm.com
io.github.lm203688/atex-ai-gateway
https://smithery.ai/server/lm203688/atex-ai-gateway
answered, not MCP not listed smithery.ai
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