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.
| server | result | tools | host |
|---|---|---|---|
| com.nobleblocks/nobleblocks-mcp
https://mcp.nobleblocks.com/mcp |
unreachable | not listed | mcp.nobleblocks.com |
| com.nocompensation/mcp
https://mcp.nocompensation.com/mcp |
gated, needs a credential | not listed | mcp.nocompensation.com |
| com.nocticas/nocticas
https://app.nocticas.com/api/mcp |
gated, needs a credential | not listed | app.nocticas.com |
| com.nomadforecast/mcp
https://nomadforecast.com/api/mcp |
gated, needs a credential | not listed | nomadforecast.com |
| com.nooticr/mcp
https://mcp.nooticr.com/mcp |
gated, needs a credential | not listed | mcp.nooticr.com |
| com.normatia/mcp
https://mcp.normatia.com/mcp |
answered, not MCP | not listed | mcp.normatia.com |
| com.norvstar/mcp-server
https://norvstar.com/api/mcp |
answered, not MCP | not listed | norvstar.com |
| com.noteboxd/mcp
https://mcp.noteboxd.com/mcp |
gated, needs a credential | not listed | mcp.noteboxd.com |
| com.notemcp/notemcp
https://notemcp.com/mcp |
gated, needs a credential | not listed | notemcp.com |
| com.notion/mcp
https://mcp.notion.com/mcp |
gated, needs a credential | not listed | mcp.notion.com |
| com.notion/mcp
https://mcp.notion.com/sse |
gated, needs a credential | not listed | mcp.notion.com |
| com.nourishvedha/mcp
https://nourishvedha.com/mcp |
gated, needs a credential | not listed | nourishvedha.com |
| com.nowgetitdone/getitdone
https://app.nowgetitdone.com/api/mcp |
gated, needs a credential | not listed | app.nowgetitdone.com |
| com.npledger/np-ledger
https://mcp.npledger.com/v1/ |
gated, needs a credential | not listed | mcp.npledger.com |
| com.nudgehost/file-hosting
https://www.nudgehost.com/api/mcp |
gated, needs a credential | not listed | www.nudgehost.com |
| com.nullpath/marketplace
https://nullpath.com/mcp |
server error | not listed | nullpath.com |
| com.nusii/mcp
https://app.nusii.com/mcp |
gated, needs a credential | not listed | app.nusii.com |
| com.nvidia.ngc.nsight.copilot.api/cuda-docs
https://api.copilot.nsight.ngc.nvidia.com/mcp/cuda-docs |
gated, needs a credential | not listed | api.copilot.nsight.ngc.nvidia.com |
| com.nyxory/nyxory
https://api.nyxory.com/mcp |
gated, needs a credential | not listed | api.nyxory.com |
| com.obligationsign.mcp/agts-mcp
https://mcp.obligationsign.com/mcp |
gated, needs a credential | not listed | mcp.obligationsign.com |
| com.obligationsign.mcp/agts-mcp
https://mcp.obligationsign.com/mcp/sse |
JSON-RPC error | not listed | mcp.obligationsign.com |
| com.octo-dock/octodock
https://octo-dock.com/mcp/{apiKey} |
404 | not listed | octo-dock.com |
| com.octolens/octolens
https://app.octolens.com/api/mcp/v2 |
gated, needs a credential | not listed | app.octolens.com |
| com.octoparse/octoparse-mcp
https://mcp.octoparse.com |
gated, needs a credential | not listed | mcp.octoparse.com |
| com.odooconsole/odoo
https://mcp.odooconsole.com/mcp |
gated, needs a credential | not listed | mcp.odooconsole.com |
| com.offlinecreatorstudio/mcp
https://mcp.offlinecreatorstudio.com/mcp |
gated, needs a credential | not listed | mcp.offlinecreatorstudio.com |
| com.offnadir-delta/mcp
https://offnadir-delta.com/api/v1/mcp |
gated, needs a credential | not listed | offnadir-delta.com |
| com.okareo/okareo
https://tools.okareo.com/mcp |
gated, needs a credential | not listed | tools.okareo.com |
| com.okdocai/okdoc
https://okdocai.com/api/mcp |
gated, needs a credential | not listed | okdocai.com |
| com.olane/copass-remote
https://mcp.copass.com/mcp |
unreachable | not listed | mcp.copass.com |
| com.olane/cosync-remote
https://mcp.copass.id/mcp |
unreachable | not listed | mcp.copass.id |
| com.oldcarsdata/mcp
https://api.oldcarsdata.com/mcp |
gated, needs a credential | not listed | api.oldcarsdata.com |
| com.olyport/hrsa
https://mcp.olyport.com/hrsa/mcp |
answered, not MCP | not listed | mcp.olyport.com |
| com.olyport/samhsa
https://mcp.olyport.com/samhsa/mcp |
answered, not MCP | not listed | mcp.olyport.com |
| com.olyport/treatment-locator
https://mcp.olyport.com/treatment-locator/mcp |
answered, not MCP | not listed | mcp.olyport.com |
| com.onelasso/lasso
https://api.lassotech.com/api/v1/mcp |
gated, needs a credential | not listed | api.lassotech.com |
| com.onepagecrm/mcp
https://app.onepagecrm.com/mcp |
gated, needs a credential | not listed | app.onepagecrm.com |
| com.onestori/stori
https://www.onestori.com/api/mcp |
gated, needs a credential | not listed | www.onestori.com |
| com.onkernel/kernel-mcp-server
https://mcp.onkernel.com/mcp |
gated, needs a credential | not listed | mcp.onkernel.com |
| com.ontoramp/decision-intelligence
https://ontoramp-decision-intelligence.fly.dev/mcp |
gated, needs a credential | not listed | ontoramp-decision-intelligence.fly.dev |
| com.ontoramp/governance-assessment
https://mcp.ontoramp.com/mcp |
gated, needs a credential | not listed | mcp.ontoramp.com |
| com.ontoramp/graph-query
https://ontoramp-graph-query.fly.dev/mcp |
gated, needs a credential | not listed | ontoramp-graph-query.fly.dev |
| com.ontoramp/knowledge-cartographer
https://ontoramp-knowledge-cartographer.fly.dev/mcp |
gated, needs a credential | not listed | ontoramp-knowledge-cartographer.fly.dev |
| com.ontoramp/transformation-radar
https://ontoramp-transformation-radar.fly.dev/mcp |
unreachable | not listed | ontoramp-transformation-radar.fly.dev |
| com.onymu/onymu
https://onymu.com/api/v1/mcp |
gated, needs a credential | not listed | onymu.com |
| com.oolkin/oolkin
https://app.oolkin.com/api/mcp |
gated, needs a credential | not listed | app.oolkin.com |
| com.ootworacle.www/predictions-server
https://www.ootworacle.com/predictions.json |
answered, not MCP | not listed | www.ootworacle.com |
| com.openagenda/mcp
https://mcp.openagenda.com/mcp |
gated, needs a credential | not listed | mcp.openagenda.com |
| com.openephemeris/open-ephemeris
https://mcp.openephemeris.com/mcp |
gated, needs a credential | not listed | mcp.openephemeris.com |
| com.openhousecopilot/openhouse-copilot
https://mcp.openhousecopilot.com/mcp |
gated, needs a credential | not listed | mcp.openhousecopilot.com |