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.github.mctx-ai/help
https://help.mctx.ai/v1.0.38 |
unreachable | not listed | help.mctx.ai |
| io.github.mctx-ai/help
https://help.mctx.ai/v1.0.39 |
unreachable | not listed | help.mctx.ai |
| io.github.mctx-ai/help
https://help.mctx.ai/v1.0.4 |
unreachable | not listed | help.mctx.ai |
| io.github.mctx-ai/help
https://help.mctx.ai/v1.0.40 |
unreachable | not listed | help.mctx.ai |
| io.github.mctx-ai/help
https://help.mctx.ai/v1.0.5 |
unreachable | not listed | help.mctx.ai |
| io.github.mctx-ai/help
https://help.mctx.ai/v1.0.6 |
unreachable | not listed | help.mctx.ai |
| io.github.mctx-ai/help
https://help.mctx.ai/v1.0.7 |
unreachable | not listed | help.mctx.ai |
| io.github.mctx-ai/help
https://help.mctx.ai/v1.0.8 |
unreachable | not listed | help.mctx.ai |
| io.github.mctx-ai/help
https://help.mctx.ai/v1.0.9 |
unreachable | not listed | help.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.10.0 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.3.4 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.3.5 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.4.0 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.4.1 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.4.2 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.5.0 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.5.1 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.6.0 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.6.1 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.6.2 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.6.3 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.7.0 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.8.0 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.0 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.1 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.2 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.3 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.4 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.5 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.6 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.7 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.8 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/hidden-empire
https://hidden-empire.mctx.ai/v0.9.9 |
unreachable | not listed | hidden-empire.mctx.ai |
| io.github.mctx-ai/mirror
https://mirror.mctx.ai/v0.4.0 |
unreachable | not listed | mirror.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.0.0 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.0.1 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.0.2 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.0.3 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.1.0 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.1.1 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.1.2 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.1.3 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.1.4 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.2.0 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.3.0 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.3.1 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.3.2 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.4.0 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.4.1 |
unreachable | not listed | notes.mctx.ai |
| io.github.mctx-ai/notes
https://notes.mctx.ai/v1.4.2 |
unreachable | not listed | notes.mctx.ai |