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.sociallisteningapi/social-listening
https://api.sociallisteningapi.com/mcp
gated, needs a credential not listed api.sociallisteningapi.com
com.softkiln/deploy
https://softkiln.com/mcp/
gated, needs a credential not listed softkiln.com
com.soleilpictures/clusters
https://clusters.soleilpictures.com/api/v1/mcp
gated, needs a credential not listed clusters.soleilpictures.com
com.solvicus/math-program-solver
https://mcp.solvicus.com/mcp
gated, needs a credential not listed mcp.solvicus.com
com.somdewan/timezone-helper
https://tz.somdewan.com/mcp
unreachable not listed tz.somdewan.com
com.somdewan/timezone-helper
https://tz-us.somdewan.com/mcp
unreachable not listed tz-us.somdewan.com
com.somdewan/timezone-helper
https://tz-eu.somdewan.com/mcp
unreachable not listed tz-eu.somdewan.com
com.somdewan/timezone-helper
https://tz-{region}.somdewan.com/mcp
unreachable not listed tz-{region}.somdewan.com
com.sonatype/dependency-management-mcp-server
https://mcp.seaworthy.sonatype.com/mcp
unreachable not listed mcp.seaworthy.sonatype.com
com.sornflow/mcp
https://mcp.sornflow.com/mcp
gated, needs a credential not listed mcp.sornflow.com
com.soundgtm/partner-tracker
https://partnertracker.soundgtm.com/api/mcp
gated, needs a credential not listed partnertracker.soundgtm.com
com.sourceacts/mcp
https://sourceacts.com/mcp
gated, needs a credential not listed sourceacts.com
com.sourcemedium/source-medium
https://mcp.sourcemedium.com/mcp
gated, needs a credential not listed mcp.sourcemedium.com
com.sourcey/sourcey
https://mcp.sourcey.com/mcp
JSON-RPC error not listed mcp.sourcey.com
com.spanly/spanly
https://mcp.spanly.com/
gated, needs a credential not listed mcp.spanly.com
com.sparkvibeai/spec-committee
https://api.sparkvibeai.com/mcp
JSON-RPC error not listed api.sparkvibeai.com
com.spcsft/sateais
https://mcp.spcsft.com/mcp
gated, needs a credential not listed mcp.spcsft.com
com.speak2web/ai-transact
https://{host}/wp-json/s2w-ai-gateway/v1/mcp-server
unreachable not listed {host}
com.spendict/spendict
https://www.spendict.com/api/mcp
gated, needs a credential not listed www.spendict.com
com.splark/splark
https://api.splark.com/mcp
gated, needs a credential not listed api.splark.com
com.spocont/docu-scan
https://docu-scan.spocont.com/api/document-scan/mcp
gated, needs a credential not listed docu-scan.spocont.com
com.spocont/ifrCoworker
https://ifr.spocont.com/api/ifrs/mcp
answered, not MCP not listed ifr.spocont.com
com.spoolis/mcp
https://spoolis.com/api/mcp
unreachable not listed spoolis.com
com.sportwizzard/sportwizzard
https://mcp.sportwizzard.com/mcp
gated, needs a credential not listed mcp.sportwizzard.com
com.sprintcheckout/sprintcheckout
https://mcp.sprintcheckout.com/mcp
gated, needs a credential not listed mcp.sprintcheckout.com
com.sprytools/sprytools
https://api.sprytools.com/mcp
JSON-RPC error not listed api.sprytools.com
com.spytrend/spytrend
https://mcp.spytrend.com/mcp
gated, needs a credential not listed mcp.spytrend.com
com.squiredocs/mcp
https://squiredocs.com/mcp
gated, needs a credential not listed squiredocs.com
com.squirrelbrainapp/squirrel-brain
https://geczbtsjfbvfukdzdemr.supabase.co/functions/v1/mcp-server
gated, needs a credential not listed geczbtsjfbvfukdzdemr.supabase.co
com.stackone/mcp
https://mcp.stackone.com/mcp
gated, needs a credential not listed mcp.stackone.com
com.stackoverflow.mcp/mcp
https://mcp.stackoverflow.com
gated, needs a credential not listed mcp.stackoverflow.com
com.stackwitness/mcp
https://mcp.stackwitness.com/mcp
gated, needs a credential not listed mcp.stackwitness.com
stagenth-qr-kit
https://stagenth.com/mcp/qr-kit/
answers a handshake not listed stagenth.com
com.stagenth/web
https://stagenth.com/mcp/web/
unreachable not listed stagenth.com
com.stalsoft/stalsoft
https://www.stalsoft.com/mcp
unreachable not listed www.stalsoft.com
com.staragenta/staragenta
https://staragenta.com/mcp
gated, needs a credential not listed staragenta.com
com.startaiming/aim
https://mcp.startaiming.com/mcp
unreachable not listed mcp.startaiming.com
com.startupnamegenerator/name-tools
https://startupnamegenerator.com/api/mcp
unreachable not listed startupnamegenerator.com
com.stat-api/sports-data
https://api.stat-api.com/mcp
unreachable not listed api.stat-api.com
com.statable/analytics
https://mcp.statable.com/mcp
gated, needs a credential not listed mcp.statable.com
com.statsig/statsig-mcp-server
https://api.statsig.com/v1/mcp
gated, needs a credential not listed api.statsig.com
com.stayingapi/hotel-vacation-rental-mcp
https://mcp.stayingapi.com/mcp
gated, needs a credential not listed mcp.stayingapi.com
com.stelllink/stelllink
https://mcp.stelllink.com/mcp/v1
gated, needs a credential not listed mcp.stelllink.com
com.stepshots/mcp
https://stepshots.com/mcp
gated, needs a credential not listed stepshots.com
com.stockfilm/mcp-server
https://mcp.stockfilm.com/mcp
gated, needs a credential not listed mcp.stockfilm.com
com.storeinspect/mcp
https://mcp.storeinspect.com/mcp
gated, needs a credential not listed mcp.storeinspect.com
com.storiesonboard/storiesonboard
https://api.storiesonboard.com/mcp
gated, needs a credential not listed api.storiesonboard.com
com.storydoc/mcp
https://mcp.storydoc.com/mcp
gated, needs a credential not listed mcp.storydoc.com
com.stratalize/crypto
https://stratalize.com/api/mcp-public?vertical=crypto
answered, not MCP not listed stratalize.com
com.stratalize/finance
https://stratalize.com/api/mcp-public?vertical=finance
answered, not MCP not listed stratalize.com
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