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.flagramtech/flagram-mcp
https://mcp.flagram.com/mcp
gated, needs a credential not listed mcp.flagram.com
io.github.flight-master-dast/aviation-data-mcp
https://fly.huoli.com/mcp/dast_mcp
JSON-RPC error not listed fly.huoli.com
io.github.flightdb/flightdb
https://flightdb.org/mcp
gated, needs a credential not listed flightdb.org
io.github.flxbl-io/codev
https://{tenant}.flxbl.io/sfp/api/mcp
unreachable not listed {tenant}.flxbl.io
io.github.fmp-projects/fitness-ai-connector
https://garmin-mcp-nuqd.onrender.com/mcp
gated, needs a credential not listed garmin-mcp-nuqd.onrender.com
io.github.foam-ai/observability
https://sdk.api.foam.ai/mcp
gated, needs a credential not listed sdk.api.foam.ai
io.github.foggykitchen/foggykitchen-mcp
https://foggykitchen.com/mcp
gated, needs a credential not listed foggykitchen.com
io.github.followtz/macd
https://probability-everyday-petroleum-herald.trycloudflare.com
unreachable not listed probability-everyday-petroleum-herald.trycloudflare.com
io.github.followtz/macd
https://girlfriend-giant-celebrities-ride.trycloudflare.com
unreachable not listed girlfriend-giant-celebrities-ride.trycloudflare.com
io.github.followtz/openclaw-swe-mcp
https://clawmcpinone.work
unreachable not listed clawmcpinone.work
io.github.foreksgithub/forinvest-mcp
https://mcp.forinvest.com/mcp
gated, needs a credential not listed mcp.forinvest.com
io.github.forgeagents-jp/oka-anywhere
https://console.forgeagentsai.com/mcp
gated, needs a credential not listed console.forgeagentsai.com
io.github.fortunesayspump/nibgate
https://api.nibgate.xyz/mcp
unreachable not listed api.nibgate.xyz
io.github.founder-OmniPA/unboxapi
https://unboxapi.pro/mcp
404 not listed unboxapi.pro
io.github.foundrole/jobs-mcp-proxy
https://www.foundrole.com/mcp
unreachable not listed www.foundrole.com
io.github.fourleafai/clover-public
https://four-leaf.ai/api/mcp
gated, needs a credential not listed four-leaf.ai
io.github.fpetitit/mcpcheckup
https://mcpcheckup.xyz/api/mcp
answered, not MCP not listed mcpcheckup.xyz
io.github.freeappstore-online/mcp
https://mcp.freeappstore.online/mcp
unreachable not listed mcp.freeappstore.online
io.github.frogeye-ai/mcp
https://mcp.frogeye.ai/sse
server error not listed mcp.frogeye.ai
io.github.frogeye-ai/mcp
https://mcp.frogeye.ai/mcp
server error not listed mcp.frogeye.ai
io.github.fujimura-ui/japan-address-geocoding-mcp
https://jusho-mcp.plus-synergy.workers.dev/mcp
404 not listed jusho-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-address-geocoding-mcp
https://jusho-mcp.plus-synergy.workers.dev/sse
404 not listed jusho-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-company-leads-mcp
https://gbiz-leads-mcp.plus-synergy.workers.dev/mcp
404 not listed gbiz-leads-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-company-leads-mcp
https://gbiz-leads-mcp.plus-synergy.workers.dev/sse
404 not listed gbiz-leads-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-corporate-filings-mcp
https://edinet-mcp.plus-synergy.workers.dev/mcp
404 not listed edinet-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-corporate-filings-mcp
https://edinet-mcp.plus-synergy.workers.dev/sse
404 not listed edinet-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-law-search-mcp
https://horei-mcp.plus-synergy.workers.dev/mcp
404 not listed horei-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-law-search-mcp
https://horei-mcp.plus-synergy.workers.dev/sse
404 not listed horei-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-official-statistics-mcp
https://estat-mcp.plus-synergy.workers.dev/mcp
404 not listed estat-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-official-statistics-mcp
https://estat-mcp.plus-synergy.workers.dev/sse
404 not listed estat-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-parliament-search-mcp
https://kokkai-mcp.plus-synergy.workers.dev/mcp
404 not listed kokkai-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-parliament-search-mcp
https://kokkai-mcp.plus-synergy.workers.dev/sse
404 not listed kokkai-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-real-estate-mcp
https://fudousan-mcp.plus-synergy.workers.dev/mcp
404 not listed fudousan-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-real-estate-mcp
https://fudousan-mcp.plus-synergy.workers.dev/sse
404 not listed fudousan-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-subsidy-search-mcp
https://hojokin-mcp.plus-synergy.workers.dev/mcp
404 not listed hojokin-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-subsidy-search-mcp
https://hojokin-mcp.plus-synergy.workers.dev/sse
404 not listed hojokin-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-weather-alerts-mcp
https://tenki-mcp.plus-synergy.workers.dev/mcp
404 not listed tenki-mcp.plus-synergy.workers.dev
io.github.fujimura-ui/japan-weather-alerts-mcp
https://tenki-mcp.plus-synergy.workers.dev/sse
404 not listed tenki-mcp.plus-synergy.workers.dev
io.github.furo-solutions/morfee
https://morfee.furo.solutions/mcp
gated, needs a credential not listed morfee.furo.solutions
io.github.futuremultihousing-dev/connectivity-index
https://connectivity-index-mcp-cloudflare.futuremultihousing.workers.dev
404 not listed connectivity-index-mcp-cloudflare.futuremultihousing.workers.dev
io.github.gCuadros/hevy-coach-mcp
https://hevy-mcp-alpha.vercel.app/mcp
gated, needs a credential not listed hevy-mcp-alpha.vercel.app
io.github.gaiabio12-design/quantumscan-pqc-scanner
https://quantumscan.io/api/mcp
JSON-RPC error not listed quantumscan.io
io.github.gateio-dev/gate-exchange
https://api.gatemcp.ai/mcp/exchange
gated, needs a credential not listed api.gatemcp.ai
io.github.gbude-sudo/dreameros-scs-gateway
https://dreameros-scs-gateway-production.up.railway.app/mcp
gated, needs a credential not listed dreameros-scs-gateway-production.up.railway.app
io.github.gbude-sudo/dreameros-scs-gateway
https://dreameros-scs-gateway-production.up.railway.app/mcp/sse
unreachable not listed dreameros-scs-gateway-production.up.railway.app
io.github.gener8v-thomas/mcp-geographic-data
https://mcp.loc8n.com/sse
unreachable not listed mcp.loc8n.com
io.github.geraldho81/flow-productivity
https://neighborly-stoat-529.eu-west-1.convex.site/mcp
gated, needs a credential not listed neighborly-stoat-529.eu-west-1.convex.site
io.github.get-cotrader/cotrader
https://api.getcotrader.com/mcp
unreachable not listed api.getcotrader.com
io.github.getcutpro/cutpro
https://mcp.cut.pro
gated, needs a credential not listed mcp.cut.pro
io.github.getpapi/papi
https://mcp.getpapi.ai/mcp
gated, needs a credential not listed mcp.getpapi.ai
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