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.therealMrFunGuy/stock-quote
https://stock.rjctdlabs.xyz/sse
server error not listed stock.rjctdlabs.xyz
io.github.therealMrFunGuy/test-mailbox
https://mail.rjctdlabs.xyz/sse
server error not listed mail.rjctdlabs.xyz
io.github.therealMrFunGuy/uptime-probe
https://uptime.rjctdlabs.xyz/sse
server error not listed uptime.rjctdlabs.xyz
io.github.therealMrFunGuy/waitlist-kit
https://waitlist.rjctdlabs.xyz/sse
server error not listed waitlist.rjctdlabs.xyz
io.github.therealMrFunGuy/weather-mcp
https://weather.rjctdlabs.xyz/sse
server error not listed weather.rjctdlabs.xyz
io.github.therealMrFunGuy/whois-lookup
https://whois.rjctdlabs.xyz/sse
server error not listed whois.rjctdlabs.xyz
io.github.thestockgoatballs/clipspeed-mcp
https://api.clipspeed.ai/mcp
gated, needs a credential not listed api.clipspeed.ai
io.github.thinksuitesolution-coder/visibilityai
https://visibilityai.in/api/mcp
answered, not MCP not listed visibilityai.in
io.github.thomas0369/wortwert
https://wortwert.mcp-hub.stream/mcp
gated, needs a credential not listed wortwert.mcp-hub.stream
io.github.thomas0369/wortwert
https://wortwert.mcp-hub.stream/sse
gated, needs a credential not listed wortwert.mcp-hub.stream
io.github.thomasjumper/agentbay-mcp
https://www.aiagentsbay.com/api/mcp
gated, needs a credential not listed www.aiagentsbay.com
io.github.thomasjumper/stremai
https://stremai.com/api/mcp
gated, needs a credential not listed stremai.com
io.github.threadsnoop/reddit
https://api.threadsnoop.com/mcp
gated, needs a credential not listed api.threadsnoop.com
io.github.tiagoyonamine/handoff
https://app.usehandoff.com.br/api/mcp
gated, needs a credential not listed app.usehandoff.com.br
io.github.tibi-metapartner-ai/mcp-portfolio-ideas
https://mcp-portfolio-ideas.metapartner.ai/mcp/stream
gated, needs a credential not listed mcp-portfolio-ideas.metapartner.ai
io.github.tibi-metapartner-ai/mcp-portfolio-ideas
https://mcp-portfolio-ideas.metapartner.ai/mcp/sse
gated, needs a credential not listed mcp-portfolio-ideas.metapartner.ai
io.github.timvonsachs/the-last-ceo
https://mcp.thelastceo.live/mcp
gated, needs a credential not listed mcp.thelastceo.live
io.github.titus-civic/mcp-gateway
https://app.civic.com/hub/mcp
gated, needs a credential not listed app.civic.com
io.github.tiza-ai/mcp-public
https://tiza.cc/mcp
server error not listed tiza.cc
io.github.tlaloc-sh/tlaloc-mcp
https://api.tlaloc.sh/mx/mcp
gated, needs a credential not listed api.tlaloc.sh
io.github.tldraw/tldraw
https://tldraw-mcp-app.tldraw.workers.dev/sse
404 not listed tldraw-mcp-app.tldraw.workers.dev
io.github.tlennon-ie/neurodock-remote
https://mcp.neurodock.org/mcp
gated, needs a credential not listed mcp.neurodock.org
io.github.tmdrb625-wq/mcp-factory
https://mcp-factory-worker.orbit-zero-9.workers.dev/mcp
404 not listed mcp-factory-worker.orbit-zero-9.workers.dev
io.github.tmill313/shopbuddy
https://getshopbuddy.vercel.app/api/mcp
gated, needs a credential not listed getshopbuddy.vercel.app
io.github.tmtysk/stockr-mcp
https://mcp.stockr.biz
gated, needs a credential not listed mcp.stockr.biz
io.github.toflow-ai/toflow
https://mcp.toflow.ai/mcp
gated, needs a credential not listed mcp.toflow.ai
io.github.tokenfix/legal-grounding
https://legal-grounding-199120533535.europe-north2.run.app/mcp
server error not listed legal-grounding-199120533535.europe-north2.run.app
io.github.tom18a/sitevitals
https://www.sitevitals.co.uk/api/mcp
gated, needs a credential not listed www.sitevitals.co.uk
io.github.tomdoeswork/podpast
https://api.podpast.ai/mcp
gated, needs a credential not listed api.podpast.ai
io.github.tonibardina/agent-dolfin
https://app.heydolfin.com/mcp
gated, needs a credential not listed app.heydolfin.com
io.github.tonymaynard97/blockscholes-mcp-server
https://mcp.blockscholes.com/mcp
gated, needs a credential not listed mcp.blockscholes.com
io.github.tonymaynard97/blockscholes-mcp-server
https://mcp.non-blockscholes.com/mcp
unreachable not listed mcp.non-blockscholes.com
io.github.tonymaynard97/blockscholes-mcp-server
https://mcp.TEST-blockscholes.com/mcp-test
answered, not MCP not listed mcp.TEST-blockscholes.com
io.github.tookeffect/tookeffect
https://tookeffect.com/mcp
gated, needs a credential not listed tookeffect.com
io.github.toolbeltai/toolbelt
https://mcp.toolbelt.ai/mcp
gated, needs a credential not listed mcp.toolbelt.ai
io.github.topofgames/la-ei-romania
https://laei.ro/mcp
JSON-RPC error not listed laei.ro
io.github.toreva/goals
https://gateway.toreva.com/mcp?surface=goals
gated, needs a credential not listed gateway.toreva.com
io.github.toreva/kit
https://gateway.toreva.com/mcp
gated, needs a credential not listed gateway.toreva.com
io.github.tounsils/ask-me-mcp
https://ask-me-mcp-xi.vercel.app/api/mcp
gated, needs a credential not listed ask-me-mcp-xi.vercel.app
io.github.tourmind-com/tourmind-booking-mcp
https://api.tourmind.com/mcp/tob
gated, needs a credential not listed api.tourmind.com
io.github.trabotpro/trabot-intel
https://trabotpro.it/api/mcp/manifest
bad request not listed trabotpro.it
io.github.trackly-app/trackly
https://mcp.usetrackly.app/api/mcp
gated, needs a credential not listed mcp.usetrackly.app
io.github.tractatus-ai/letter
https://api.letter.ai/v1/mcp
gated, needs a credential not listed api.letter.ai
io.github.tradingale/mcp
https://tradingale.com/api/mcp/sse
gated, needs a credential not listed tradingale.com
io.github.traffiycom-ui/paidsync
https://mcp.paidsync.ai/sse
404 not listed mcp.paidsync.ai
io.github.trevorflipper/near-solana-blockchain-api
https://ironflip.duckdns.org
404 not listed ironflip.duckdns.org
io.github.treza-labs/treza
https://www.trezalabs.com/api/mcp
gated, needs a credential not listed www.trezalabs.com
io.github.tridevils/gmca-certainty-matrix-validate
https://gmca-researchapp.web.app/mcp
answered, not MCP not listed gmca-researchapp.web.app
io.github.tripsyapp/tripsy
https://mcp.tripsy.app
gated, needs a credential not listed mcp.tripsy.app
io.github.trooth-eng/trooth-network
https://api.trooth.co/public/mcp
unreachable not listed api.trooth.co
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