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.identark/gateway
https://api.identark.io/v1/mcp/rpc |
gated, needs a credential | not listed | api.identark.io |
| io.idntty/parley
https://mcp.idntty.io/parley/ |
gated, needs a credential | not listed | mcp.idntty.io |
| io.idntty/stash
https://mcp.idntty.io/stash/ |
gated, needs a credential | not listed | mcp.idntty.io |
| io.ignission/mcp
https://mcp.ignission.io/mcp |
unreachable | not listed | mcp.ignission.io |
| io.ihateinvoicing/ihateinvoicing
https://www.ihateinvoicing.io/api/mcp |
gated, needs a credential | not listed | www.ihateinvoicing.io |
| io.illumora/craft
https://mcp.illumora.io |
gated, needs a credential | not listed | mcp.illumora.io |
| io.illumora/craft
https://illumora.io/api/mcp |
gated, needs a credential | not listed | illumora.io |
| io.imaginevid/imaginevid-ai-generation
https://imaginevid.io/api/mcp |
gated, needs a credential | not listed | imaginevid.io |
| io.imejis/imejis
https://api.imejis.io/api/mcp |
gated, needs a credential | not listed | api.imejis.io |
| io.inboxacademy/mcp
https://mcp.inboxacademy.io |
gated, needs a credential | not listed | mcp.inboxacademy.io |
| io.indexone/mcp
https://api.indexone.io/mcp |
gated, needs a credential | not listed | api.indexone.io |
| io.indices/mcp
https://mcp.indices.io |
gated, needs a credential | not listed | mcp.indices.io |
| io.indraft/mcp
https://api.indraft.io/mcp |
gated, needs a credential | not listed | api.indraft.io |
| io.instadash/server
https://mcp.instadash.io/ |
gated, needs a credential | not listed | mcp.instadash.io |
| io.instalent/instalent-mcp
https://api.instalent.io/api/mcp |
gated, needs a credential | not listed | api.instalent.io |
| io.investjournal/investjournal
https://mcp.investjournal.io/mcp |
gated, needs a credential | not listed | mcp.investjournal.io |
| io.ironshell/preflight402
https://preflight402.ironshell.io/mcp |
server error | not listed | preflight402.ironshell.io |
| io.ishlabs/ish
https://mcp.ishlabs.io/mcp |
gated, needs a credential | not listed | mcp.ishlabs.io |
| io.kaitoi/studio
https://mcp.studio.kaitoi.io |
gated, needs a credential | not listed | mcp.studio.kaitoi.io |
| io.keryo/mcp
https://mcp.keryo.io/mcp |
gated, needs a credential | not listed | mcp.keryo.io |
| io.keypup/engineering-analytics
https://hq.keypup.io/mcp |
gated, needs a credential | not listed | hq.keypup.io |
| io.kifly/mcp
https://kifly.io/api/mcp |
answered, not MCP | not listed | kifly.io |
| io.kiloiot/kilo
https://mcp-auth.kiloiot.io/mcp |
gated, needs a credential | not listed | mcp-auth.kiloiot.io |
| io.kiloiot/kilo
https://mcp-auth.kiloiot.io/o/{organizationId}/mcp |
gated, needs a credential | not listed | mcp-auth.kiloiot.io |
| io.klokin/mcp-server
https://mcp.klokin.io |
gated, needs a credential | not listed | mcp.klokin.io |
| io.kolvera/kolvera
https://mcp.kolvera.io/mcp |
gated, needs a credential | not listed | mcp.kolvera.io |
| io.kondux/seraph
https://seraph.kondux.io/mcp |
gated, needs a credential | not listed | seraph.kondux.io |
| io.kortexio/memory
https://mcp.kortexio.io/{appId}/mcp |
JSON-RPC error | not listed | mcp.kortexio.io |
| io.layven/layven
https://api.layven.io/mcp |
gated, needs a credential | not listed | api.layven.io |
| io.lenz/fact-check
https://lenz.io/mcp |
gated, needs a credential | not listed | lenz.io |
| io.liminary.api/mcp
https://api.liminary.io/api/mcp |
answered, not MCP | not listed | api.liminary.io |
| io.liminary.api/mcp
https://api.liminary.io/api/mcp/ |
gated, needs a credential | not listed | api.liminary.io |
| io.linkflare/linkflare
https://mcp.linkflare.io/mcp |
gated, needs a credential | not listed | mcp.linkflare.io |
| io.linklist/linklist
https://linklist.io/mcp |
gated, needs a credential | not listed | linklist.io |
| io.linkmcp/linkmcp
https://app.linkmcp.io/api/mcp |
gated, needs a credential | not listed | app.linkmcp.io |
| io.localize/localize-io
https://hub.localize.io/mcp/ |
gated, needs a credential | not listed | hub.localize.io |
| io.lucidnest/mcp
https://lucidnest.io/mcp |
gated, needs a credential | not listed | lucidnest.io |
| io.lumind/mcp
https://lumind.io/mcp |
gated, needs a credential | not listed | lumind.io |
| Magdox
https://app.magdox.io/api/mcp |
answers a handshake | not listed | app.magdox.io |
| io.magellandata/spotlight
https://spotlight-mcp.magellandata.io/mcp |
gated, needs a credential | not listed | spotlight-mcp.magellandata.io |
| io.mailmcp/mailmcp
https://mailmcp.io/mcp |
404 | not listed | mailmcp.io |
| io.maindex/expert
https://expert.maindex.io/mcp |
gated, needs a credential | not listed | expert.maindex.io |
| io.maindex/smart
https://maindex.io/mcp |
gated, needs a credential | not listed | maindex.io |
| io.mascotlab/mascotlab
https://mascotlab.io/mcp |
gated, needs a credential | not listed | mascotlab.io |
| io.mcpcentral/jsoncanvas
https://jsoncanvas.mcpcentral.io/mcp |
gated, needs a credential | not listed | jsoncanvas.mcpcentral.io |
| io.memorysync/memory
https://mcp.memorysync.io/mcp |
gated, needs a credential | not listed | mcp.memorysync.io |
| io.metavert/llmopt
https://llmopt.metavert.io/mcp |
gated, needs a credential | not listed | llmopt.metavert.io |
| io.minnas/mcp
https://api.minnas.io/mcp |
unreachable | not listed | api.minnas.io |
| io.minoa/minoa
https://mcp.minoa.io |
gated, needs a credential | not listed | mcp.minoa.io |
| io.minter/analytics
https://minter.io/mcp |
gated, needs a credential | not listed | minter.io |