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
com.gravity8/dillie-mcp
https://mcp.gravity8.com/mcp
gated, needs a credential not listed mcp.gravity8.com
com.green-api/whatsapp
https://mcp.green-api.com/sse
answered, not MCP not listed mcp.green-api.com
com.grid-shot/gridshot
https://mcp.grid-shot.com/mcp
gated, needs a credential not listed mcp.grid-shot.com
com.griffnode/griffnode
https://mcp.cryptogate.live/mcp
404 not listed mcp.cryptogate.live
com.griffnode/griffnode
https://mcp.griffnode.com/mcp
gated, needs a credential not listed mcp.griffnode.com
com.gringofunnels/mcp
https://gringofunnels.com/mcp
gated, needs a credential not listed gringofunnels.com
com.groniz/mcp
https://mcp.groniz.com/mcp
gated, needs a credential not listed mcp.groniz.com
com.growomat/growomat
https://mcp.growomat.com/mcp
gated, needs a credential not listed mcp.growomat.com
com.growsurf/growsurf
https://mcp.growsurf.com
gated, needs a credential not listed mcp.growsurf.com
com.gtdbrain/gtd-brain
https://mcp.gtdbrain.com/api/gtdbrain/v1/mcp
gated, needs a credential not listed mcp.gtdbrain.com
com.gtm-api/linkedin-mcp
https://mcp.gtm-api.com/mcp
gated, needs a credential not listed mcp.gtm-api.com
com.gtmetrix/gtmetrix
https://gtmetrix.com/mcp
gated, needs a credential not listed gtmetrix.com
com.guffeyholdings/token-oracle
https://mcp.guffeyholdings.com/TokenOracle
unreachable not listed mcp.guffeyholdings.com
com.guleki/geolocate-me
https://geolocateme.guleki.com/mcp
gated, needs a credential not listed geolocateme.guleki.com
com.gummble/mcp
https://mcp.gummble.com/mcp
gated, needs a credential not listed mcp.gummble.com
com.guruhotel/manager
https://manager.guruhotel.com/api/mcp
gated, needs a credential not listed manager.guruhotel.com
com.guruwalk/affiliates-mcp
https://back.guruwalk.com/mcp/affiliates
gated, needs a credential not listed back.guruwalk.com
com.haasonline/trade-server
https://api.haasbot.com/mcp
gated, needs a credential not listed api.haasbot.com
com.hackforddata/mcp
https://mcp.hackforddata.com/mcp
gated, needs a credential not listed mcp.hackforddata.com
com.halalterminal/mcp
https://mcp.halalterminal.com/sse
gated, needs a credential not listed mcp.halalterminal.com
com.hapticpaper/mcp
https://mcp.hapticpaper.com/mcp
404 not listed mcp.hapticpaper.com
com.harucms/haru-cms
https://app.harucms.com/mcp
gated, needs a credential not listed app.harucms.com
com.harukibox/harukibox
https://harukibox.com/api/agent/mcp
gated, needs a credential not listed harukibox.com
com.hasdata/airbnb
https://mcp.hasdata.com/api/mcp?apis=airbnb
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/booking
https://mcp.hasdata.com/api/mcp?apis=booking
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/duckduckgo
https://mcp.hasdata.com/api/mcp?apis=duckduckgo
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/google-flights
https://mcp.hasdata.com/api/mcp?apis=google_travel_flights
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/google-maps
https://mcp.hasdata.com/api/mcp?apis=google_maps
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/google-search
https://mcp.hasdata.com/api/mcp?apis=google_serp
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/google-trends
https://mcp.hasdata.com/api/mcp?apis=google_trends
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/hasdata
https://mcp.hasdata.com/api/mcp
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/indeed
https://mcp.hasdata.com/api/mcp?apis=indeed
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/instagram
https://mcp.hasdata.com/api/mcp?apis=instagram
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/tiktok
https://mcp.hasdata.com/api/mcp?apis=tiktok
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/youtube
https://mcp.hasdata.com/api/mcp?apis=youtube
gated, needs a credential not listed mcp.hasdata.com
com.hasdata/zillow
https://mcp.hasdata.com/api/mcp?apis=zillow
gated, needs a credential not listed mcp.hasdata.com
com.hatchable/hatchable
https://hatchable.com/mcp
gated, needs a credential not listed hatchable.com
com.haulbound/ebay-seller-mcp
https://haulbound.com/mcp
gated, needs a credential not listed haulbound.com
com.hdply/hdply
https://api.app.hdply.com/mcp
gated, needs a credential not listed api.app.hdply.com
com.hedgespecialty.www/broker
https://mcp.hedgespecialty.com/mcp
gated, needs a credential not listed mcp.hedgespecialty.com
com.hedwig-ai/hedwig
https://www.hedwig-ai.com/api/mcp
gated, needs a credential not listed www.hedwig-ai.com
com.heirmos/memory
https://mcp.heirmos.com/mcp
gated, needs a credential not listed mcp.heirmos.com
com.hekkova/mcp
https://mcp.hekkova.com/mcp
gated, needs a credential not listed mcp.hekkova.com
com.heliciel/heliciel
https://mcp.heliciel.com/mcp
gated, needs a credential not listed mcp.heliciel.com
com.helprentdanang/rentals
https://helprentdanang.com/mcp/
404 not listed helprentdanang.com
com.helpusagree/conciliation
https://helpusagree.com/mcp
gated, needs a credential not listed helpusagree.com
com.heybuna/buna
https://api.heybuna.com/mcp
gated, needs a credential not listed api.heybuna.com
com.heykairon/kairon
https://app.heykairon.com/mcp
gated, needs a credential not listed app.heykairon.com
com.hirosecure/agents
https://api.hirosecure.com/mcp/agents
answered, not MCP not listed api.hirosecure.com
com.hirosecure/architect
https://api.hirosecure.com/mcp/architect
answered, not MCP not listed api.hirosecure.com
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