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.retrainmap/ecfr-regulations
https://mcp.apify.com/?tools=retrainmap/ecfr-regulations |
gated, needs a credential | not listed | mcp.apify.com |
| com.retrainmap/etp-programs
https://mcp.apify.com/?tools=retrainmap/etp-programs |
gated, needs a credential | not listed | mcp.apify.com |
| com.retrainmap/federal-register-documents
https://mcp.apify.com/?tools=retrainmap/federal-register-documents |
gated, needs a credential | not listed | mcp.apify.com |
| com.retrainmap/state-ui-provisions
https://mcp.apify.com/?tools=retrainmap/state-ui-provisions |
gated, needs a credential | not listed | mcp.apify.com |
| com.retrainmap/warn-notices
https://mcp.apify.com/?tools=retrainmap/warn-notices |
gated, needs a credential | not listed | mcp.apify.com |
| com.returnonsecurity/signal
https://mcp.returnonsecurity.com/mcp |
gated, needs a credential | not listed | mcp.returnonsecurity.com |
| com.revelata/deepkpi-mcp
https://deepkpi-mcp.revelata.com/mcp |
gated, needs a credential | not listed | deepkpi-mcp.revelata.com |
| com.revelica/revelica
https://api.revelica.com/mcp |
gated, needs a credential | not listed | api.revelica.com |
| com.revensi/revensi
https://mcp.revensi.com/mcp |
unreachable | not listed | mcp.revensi.com |
| com.revorbit/crm
https://crm.revorbit.com/api/mcp |
gated, needs a credential | not listed | crm.revorbit.com |
| Riddle Creator MCP
https://www.riddle.com/creator/api/v3/mcp |
answers a handshake | not listed | www.riddle.com |
| taxi-rido-public-knowledge
https://ridotaxi.com/mcp |
answers a handshake | not listed | ridotaxi.com |
| mcp-typescript server on vercel
https://rightaichoice.com/api/mcp |
answers a handshake | not listed | rightaichoice.com |
| com.rigorloop/research-bounties
https://rigorloop.com/mcp |
JSON-RPC error | not listed | rigorloop.com |
| com.ritzademo/acme-todo
https://mcp.ritzademo.com/mcp/ritza-rzx-our91 |
unreachable | not listed | mcp.ritzademo.com |
| rivalsweeper-signals
https://mcp.rivalsweeper.com/mcp |
answers a handshake | not listed | mcp.rivalsweeper.com |
| riverscript
https://riverscript.com/mcp |
answers a handshake | not listed | riverscript.com |
| com.rixfreight-group/mcp
https://mcp.rixfreight-group.com/mcp |
unreachable | not listed | mcp.rixfreight-group.com |
| com.roam2go/esim-catalog
https://roam2go.com/wp-json/r2g-mcp/v1/mcp |
unreachable | not listed | roam2go.com |
| com.robbiegeorgephotography/naturepedia
https://mcp.robbiegeorgephotography.com/mcp |
unreachable | not listed | mcp.robbiegeorgephotography.com |
| com.robinsaige/verifier
https://robinsaige.com/mcp |
unreachable | not listed | robinsaige.com |
| com.roboflow/roboflow-mcp
https://mcp.roboflow.com/mcp |
unreachable | not listed | mcp.roboflow.com |
| com.roboselect360/humanoid-robots
https://mcp-free.roboselect360.com/sse |
404 | not listed | mcp-free.roboselect360.com |
| com.rocket-core.intel/marketplace
https://intel.rocket-core.com/mcp |
server error | not listed | intel.rocket-core.com |
| com.rohithmariyala/makemebetter-ai
https://makemebetter-ai-backend-59998332584.asia-south1.run.app/mcp |
gated, needs a credential | not listed | makemebetter-ai-backend-59998332584.asia-south1.run.app |
| com.rooquiz/rooquiz-mcp
https://payload.rooquiz.com/api/mcp |
gated, needs a credential | not listed | payload.rooquiz.com |
| com.rootly/mcp-server
https://mcp.rootly.com/sse |
gated, needs a credential | not listed | mcp.rootly.com |
| com.royalplugins/royal-mcp
https://demo.royalplugins.com/wp-json/royal-mcp/v1/mcp |
gated, needs a credential | not listed | demo.royalplugins.com |
| com.rqmtechnologies/jobs
https://jobs.rqmtechnologies.com/mcp |
JSON-RPC error | not listed | jobs.rqmtechnologies.com |
| com.rqmtechnologies/robotics
https://jobs.rqmtechnologies.com/mcp/robotics |
JSON-RPC error | not listed | jobs.rqmtechnologies.com |
| com.rqmtechnologies/studio
https://jobs.rqmtechnologies.com/mcp/studio |
JSON-RPC error | not listed | jobs.rqmtechnologies.com |
| com.rqmtechnologies/waveengine
https://jobs.rqmtechnologies.com/mcp/waveengine |
JSON-RPC error | not listed | jobs.rqmtechnologies.com |
| com.rssatlas/rss-atlas
https://mcp.rssatlas.com/mcp |
gated, needs a credential | not listed | mcp.rssatlas.com |
| com.rti/connext-mcp
https://chatbot.rti.com/mcp |
gated, needs a credential | not listed | chatbot.rti.com |
| com.rulemesh/compliance
https://api.rulemesh.com/mcp |
gated, needs a credential | not listed | api.rulemesh.com |
| com.runcabin/cabin
https://runcabin.com/mcp |
gated, needs a credential | not listed | runcabin.com |
| com.runmirrors/mirrors
https://api.runmirrors.com/mcp |
gated, needs a credential | not listed | api.runmirrors.com |
| com.ryxell/mcp
https://ryxell.com/mcp |
gated, needs a credential | not listed | ryxell.com |
| com.salesql/salesql
https://mcp.salesql.com/mcp |
gated, needs a credential | not listed | mcp.salesql.com |
| com.santosautomation/site-audit
https://api.santosautomation.com/mcp |
server error | not listed | api.santosautomation.com |
| com.sapiensinteticos/sapiens
https://sapiensinteticos.com/api/mcp/mcp |
answered, not MCP | not listed | sapiensinteticos.com |
| com.sapiensinteticos/sapiens
https://www.sapiensinteticos.com/api/mcp/mcp |
gated, needs a credential | not listed | www.sapiensinteticos.com |
| sarkoa
https://mcp.sarkoa.com/mcp |
answers a handshake | not listed | mcp.sarkoa.com |
| com.savantisai/savantis-memory
https://context.savantisai.com/mcp |
gated, needs a credential | not listed | context.savantisai.com |
| com.savee/savee
https://mcp.savee.com/mcp |
gated, needs a credential | not listed | mcp.savee.com |
| com.scadaminer/nem-explorer
https://chat.scadaminer.com/mcp |
gated, needs a credential | not listed | chat.scadaminer.com |
| ScanMalware MCP
https://mcp.scanmalware.com/mcp |
answers a handshake | not listed | mcp.scanmalware.com |
| com.schedchie.www/schedchie
https://mcp.schedchie.com/mcp |
gated, needs a credential | not listed | mcp.schedchie.com |
| com.schedulala/schedulala
https://schedulala.com/api/mcp |
gated, needs a credential | not listed | schedulala.com |
| com.schedulenchill/mcp
https://schedulenchill.com/mcp-oauth |
unreachable | not listed | schedulenchill.com |