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.iPAYX-Technologies/mcp-fx-audit
https://mcp.ipayx.ai
answered, not MCP not listed mcp.ipayx.ai
io.github.ialim0/timalens
https://api.timalens.com/mcp
gated, needs a credential not listed api.timalens.com
io.github.iambenslater/leadlord-local-trades
https://mcp.{site_domain}/
unreachable not listed mcp.{site_domain}
io.github.iamtsoftware/promolink
https://promolink-mcp.onrender.com/mcp
server error not listed promolink-mcp.onrender.com
io.github.iamzifei/adwhiz
https://mcp.adwhiz.ai/mcp
gated, needs a credential not listed mcp.adwhiz.ai
io.github.igor-holt/sear
https://sear.genesisconductor.io/api/mcp
unreachable not listed sear.genesisconductor.io
io.github.igormilovanovic/data-converter
https://mcp-converter.tnkng.com/mcp
gated, needs a credential not listed mcp-converter.tnkng.com
io.github.igorpdev/databr
https://databr.api.br/mcp
unreachable not listed databr.api.br
io.github.ikshan-ai/doableclaw-mcp
https://ikshan-be-prod-6gbup6suoq-el.a.run.app/mcp/research-v4
gated, needs a credential not listed ikshan-be-prod-6gbup6suoq-el.a.run.app
io.github.im-ff/crawlinx-mcp
https://crawlinx.com/mcp
answered, not MCP not listed crawlinx.com
io.github.imiraoui/winelabs
https://chat.wine-labs.com/mcp
gated, needs a credential not listed chat.wine-labs.com
io.github.imjakezimmer32/dylog
https://dylog.app/api/mcp
gated, needs a credential not listed dylog.app
io.github.imjakezimmer32/recall
https://recall.arraybud.app/api/mcp
gated, needs a credential not listed recall.arraybud.app
io.github.imjakezimmer32/talkmill
https://talkmill.arraybud.app/api/mcp
gated, needs a credential not listed talkmill.arraybud.app
io.github.immuneeb/marigold
https://marigold.page/api/mcp
gated, needs a credential not listed marigold.page
io.github.imviky-ctrl/tickerr
https://tickerr.ai/mcp
answered, not MCP not listed tickerr.ai
io.github.incendies/imageat
https://mcp.imageat.com/mcp
gated, needs a credential not listed mcp.imageat.com
io.github.incwo/incwo
https://www.incwo.com/mcp
gated, needs a credential not listed www.incwo.com
io.github.indicateio/indicate-mcp
https://industry.indicate-data.io/agent/semantic/mcp
unreachable not listed industry.indicate-data.io
io.github.infinitemindos-doai/signal-relay
https://doaiorbit.com/mcp
gated, needs a credential not listed doaiorbit.com
io.github.infotik/orano-mcp-server
https://api.oranoai.com/mcp/
unreachable not listed api.oranoai.com
io.github.inite-ai/inite-brain-service
https://brain.inite.ai/mcp/{companyId}
gated, needs a credential not listed brain.inite.ai
io.github.inspirio-co/rootr-cli
https://rootr.io/mcp
gated, needs a credential not listed rootr.io
io.github.intervixus-corporation/facilita-lite
https://facilita-lite-mcp.onrender.com/mcp
gated, needs a credential not listed facilita-lite-mcp.onrender.com
io.github.invertedhoologan/eval-engine-mcp
https://eval.zuluworksai.com/mcp
server error not listed eval.zuluworksai.com
io.github.invertedhoologan/sovereign-engine
https://api.zuluworksai.com/mcp
unreachable not listed api.zuluworksai.com
io.github.ip930/patentmax
https://api.ip930.com/api/mcp
gated, needs a credential not listed api.ip930.com
io.github.irinabuht12-oss/google-meta-ads-ga4-mcp
https://mcp.get-ryze.ai/mcp
gated, needs a credential not listed mcp.get-ryze.ai
mcp-typescript server on vercel
https://www.jsonlify.com/api/mcp
answers a handshake not listed www.jsonlify.com
io.github.isakskogstad/kolada-mcp
https://kolada-mcp-pafn.onrender.com/mcp
server error not listed kolada-mcp-pafn.onrender.com
io.github.isakskogstad/kolada-mcp
https://kolada-mcp-pafn.onrender.com/sse
server error not listed kolada-mcp-pafn.onrender.com
io.github.isakskogstad/oecd-mcp
https://oecd-mcp-server.onrender.com/mcp
server error not listed oecd-mcp-server.onrender.com
io.github.isakskogstad/oecd-mcp
https://oecd-mcp-server.onrender.com/sse
server error not listed oecd-mcp-server.onrender.com
io.github.isakskogstad/scb-mcp
https://scb-mcp.onrender.com/mcp
server error not listed scb-mcp.onrender.com
io.github.itcons-app/mcp
https://mcp.itcons.app/mcp
gated, needs a credential not listed mcp.itcons.app
io.github.itcons-app/mcp
https://mcp.itcons.app/sse
gated, needs a credential not listed mcp.itcons.app
io.github.itmplatform/mcp-server
https://api.itmplatform.com/v2/_/mcp/
gated, needs a credential not listed api.itmplatform.com
io.github.itpofy2024o/mattalk
https://mattalk-agentic.pendia-community.workers.dev/mcp
404 not listed mattalk-agentic.pendia-community.workers.dev
io.github.itshivams/studex-mcp
https://studex.club/api/mcp
gated, needs a credential not listed studex.club
io.github.iusmuchandra/hiresignal
https://hiresignal-mcp-production-d4d9.up.railway.app/sse
404 not listed hiresignal-mcp-production-d4d9.up.railway.app
io.github.ivanstan/tle-satellite
https://tle.ivanstanojevic.me/mcp
bad request not listed tle.ivanstanojevic.me
io.github.j-sulliman/hopgraph
https://hopgraph.com/mcp/
gated, needs a credential not listed hopgraph.com
io.github.jackasser/drillspark-mcp
https://drillspark.io/api/mcp/mcp
gated, needs a credential not listed drillspark.io
io.github.jackfriks/post-bridge
https://www.post-bridge.com/api/mcp/mcp
gated, needs a credential not listed www.post-bridge.com
io.github.jackkatzman/genflik
https://genflik.com/api/mcp
gated, needs a credential not listed genflik.com
io.github.jackmmaher/sic-codes
https://siccodes.co.uk/api/mcp
404 not listed siccodes.co.uk
io.github.jackmmaher/ukdatapi
https://www.ukdatapi.com/api/mcp
unreachable not listed www.ukdatapi.com
io.github.jackyzhang69/formbro
https://mcp.formbro.ca/mcp?toolsets=system,read,validate
server error not listed mcp.formbro.ca
io.github.jacobfunch/usefillo
https://fillo.so/api/mcp
gated, needs a credential not listed fillo.so
io.github.jakeloo/peelaway
https://mcp.peelaway.io/mcp
gated, needs a credential not listed mcp.peelaway.io
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