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 |
|---|---|---|---|
| io.flexyield/gateway
https://flexyield.io/mcp/sse |
JSON-RPC error | not listed | flexyield.io |
| io.flownode/flownode
https://mcp.flownode.io/ |
gated, needs a credential | not listed | mcp.flownode.io |
| io.fltln/faultline
https://mcp.fltln.io/mcp |
server error | not listed | mcp.fltln.io |
| io.followin/market-data
https://mcp.followin.io/v2/mcp |
gated, needs a credential | not listed | mcp.followin.io |
| io.followin/market-data
https://mcp.followin.io/v2/sse |
gated, needs a credential | not listed | mcp.followin.io |
| io.foqal/Foqal
https://support.foqal.io/api/mcp/[YOUR_GENERATED_TOKEN] |
server error | not listed | support.foqal.io |
| io.framelane/framelane
https://mcp.framelane.io/mcp |
gated, needs a credential | not listed | mcp.framelane.io |
| io.frase/mcp-server
https://next.frase.io/api/mcp |
gated, needs a credential | not listed | next.frase.io |
| io.frihet/erp
https://mcp.frihet.io/mcp |
gated, needs a credential | not listed | mcp.frihet.io |
| io.gainium/gainium-mcp
https://mcp.gainium.io/mcp |
gated, needs a credential | not listed | mcp.gainium.io |
| io.getsphere/sphere
https://api.getsphere.io/functions/v1/mcp |
gated, needs a credential | not listed | api.getsphere.io |
| io.github.0nork/0nMCP
https://0nmcp.com/api/mcp |
answered, not MCP | not listed | 0nmcp.com |
| io.github.0xbeny/xdc-ai
https://api.xdcai.tech/mcp |
gated, needs a credential | not listed | api.xdcai.tech |
| io.github.0xdirectping/escrow
https://0xdirectping.com/mcp |
unreachable | not listed | 0xdirectping.com |
| io.github.11Agents/cloud-mcp
https://app.11agents.ai/mcp |
gated, needs a credential | not listed | app.11agents.ai |
| io.github.1clickreport/mcp
https://mcp.1clickreport.com/mcp |
gated, needs a credential | not listed | mcp.1clickreport.com |
| io.github.1powergrey/sios-gano-connector
https://sios-gano-connector.vercel.app/mcp |
gated, needs a credential | not listed | sios-gano-connector.vercel.app |
| io.github.29yeovil/bluewatch
https://bluewatch.app/mcp |
answered, not MCP | not listed | bluewatch.app |
| io.github.4dmrkey/cryptopolitan
https://agent.cryptopolitan.com/mcp/sse |
404 | not listed | agent.cryptopolitan.com |
| io.github.55tarkun/geojp
https://mcp.reversegeojp.com |
gated, needs a credential | not listed | mcp.reversegeojp.com |
| io.github.81labsapps-ops/framework-mcp
https://framework-mcp-production.up.railway.app/mcp |
gated, needs a credential | not listed | framework-mcp-production.up.railway.app |
| io.github.89rat/openfang-rail
https://rail.akrivis.in/mcp |
unreachable | not listed | rail.akrivis.in |
| io.github.98lukehall/renoun
https://web-production-817e2.up.railway.app/mcp |
404 | not listed | web-production-817e2.up.railway.app |
| io.github.AAAIStudio/outagent
https://outagent.lol/mcp |
gated, needs a credential | not listed | outagent.lol |
| io.github.AAAZZZR/stockfacts
https://trading-agent-mcp.zeabur.app/mcp |
gated, needs a credential | not listed | trading-agent-mcp.zeabur.app |
| io.github.AAAZZZR/stockfacts
https://mcp.livermore.club/mcp |
gated, needs a credential | not listed | mcp.livermore.club |
| io.github.ABTdomain/ctlogs
https://mcp.ctlogs.io/mcp |
gated, needs a credential | not listed | mcp.ctlogs.io |
| io.github.ABTdomain/domainkits-mcp
https://mcp.domainkits.com/mcp/ns-reverse |
answered, not MCP | not listed | mcp.domainkits.com |
| io.github.ABTdomain/domainkits-mcp
https://mcp.domainkits.com/mcp/nrds |
answered, not MCP | not listed | mcp.domainkits.com |
| domainkits
https://api.domainkits.com/v1/mcp |
answers a handshake | not listed | api.domainkits.com |
| io.github.AILIFE1/cathedral-mcp
https://cathedral-ai.com/mcp |
gated, needs a credential | not listed | cathedral-ai.com |
| io.github.AKzar1el/mcp-geo
https://geo-mcp.digestseo.com/mcp |
gated, needs a credential | not listed | geo-mcp.digestseo.com |
| io.github.AKzar1el/mcp-gsc
https://{mcp_gsc_worker_domain}/mcp |
unreachable | not listed | {mcp_gsc_worker_domain} |
| io.github.AKzar1el/mcp-gsc
https://mcp-gsc.digestseo.com/mcp |
gated, needs a credential | not listed | mcp-gsc.digestseo.com |
| io.github.ASEM-BATAWY/vicatoo
https://mcp.vicatoo.com/mcp |
gated, needs a credential | not listed | mcp.vicatoo.com |
| io.github.AZ-IDD/hi-welcome-mcp-poc
https://poc-v2-mcp-server.amr-dbe.workers.dev/mcp |
gated, needs a credential | not listed | poc-v2-mcp-server.amr-dbe.workers.dev |
| io.github.AbYousef739/signalpipe
https://api.signalpipe.io/mcp |
answered, not MCP | not listed | api.signalpipe.io |
| io.github.AccelByte/ags-api-mcp-server
https://{studio}-{game}.prod.gamingservices.accelbyte.io/mcp/{studio}-{game} |
unreachable | not listed | {studio}-{game}.prod.gamingservices.accelbyte.io |
| io.github.AccelByte/ags-api-mcp-server
https://{private_cloud_url}/mcp/{namespace} |
unreachable | not listed | {private_cloud_url} |
| io.github.AccelByte/ags-extend-sdk-mcp-server
https://{studio}-{game}.prod.gamingservices.accelbyte.io/extend-mcp/{language} |
unreachable | not listed | {studio}-{game}.prod.gamingservices.accelbyte.io |
| io.github.AccelByte/ags-extend-sdk-mcp-server
https://{private_cloud_url}/extend-mcp/{language} |
unreachable | not listed | {private_cloud_url} |
| io.github.AceDataCloud/mcp-acedatacloud
https://mcp.acedata.cloud/mcp |
gated, needs a credential | not listed | mcp.acedata.cloud |
| io.github.AceDataCloud/mcp-aichat
https://aichat.mcp.acedata.cloud/mcp |
gated, needs a credential | not listed | aichat.mcp.acedata.cloud |
| io.github.AceDataCloud/mcp-face-transform
https://face.mcp.acedata.cloud/mcp |
gated, needs a credential | not listed | face.mcp.acedata.cloud |
| io.github.AceDataCloud/mcp-fish
https://fish.mcp.acedata.cloud/mcp |
gated, needs a credential | not listed | fish.mcp.acedata.cloud |
| io.github.AceDataCloud/mcp-flux-pro
https://flux.mcp.acedata.cloud/mcp |
gated, needs a credential | not listed | flux.mcp.acedata.cloud |
| io.github.AceDataCloud/mcp-glm
https://glm.mcp.acedata.cloud/mcp |
gated, needs a credential | not listed | glm.mcp.acedata.cloud |
| io.github.AceDataCloud/mcp-grok
https://grok.mcp.acedata.cloud/mcp |
gated, needs a credential | not listed | grok.mcp.acedata.cloud |
| io.github.AceDataCloud/mcp-hailuo
https://hailuo.mcp.acedata.cloud/mcp |
gated, needs a credential | not listed | hailuo.mcp.acedata.cloud |
| io.github.AceDataCloud/mcp-kling
https://kling.mcp.acedata.cloud/mcp |
gated, needs a credential | not listed | kling.mcp.acedata.cloud |