Which MCP servers actually work?

We track 51352 servers from the official MCP Registry. 33921 are hosted (remote); we have health-checked 33637 so far. 294 use templated URLs that need user-specific values and can't be checked. Of those checked, 20332 passed a full MCP handshake, 9546 are up but need credentials, and 3759 failed or were unreachable (last check 2026-10-27T16:20:17.758Z UTC). How we check.

ServerUsers (30 d)HandshakeAuthToolsLatencyLast checked (UTC)Category
Utility 43
io.github.sadri-dridi/util-043		0HealthyNone31491 ms2026-10-26T10:05:10.867Zagents-and-memory
Utility 44
io.github.sadri-dridi/util-044		0HealthyNone31485 ms2026-10-26T10:05:10.843Zagents-and-memory
Utility 32
io.github.sadri-dridi/util-032		0HealthyNone31358 ms2026-10-26T10:05:10.817Zagents-and-memory
Utility 34
io.github.sadri-dridi/util-034		0HealthyNone31361 ms2026-10-26T10:05:10.813Zagents-and-memory
Utility 36
io.github.sadri-dridi/util-036		0HealthyNone31119 ms2026-10-26T10:05:10.703Zagents-and-memory
Utility 37
io.github.sadri-dridi/util-037		0HealthyNone3122 ms2026-10-26T10:05:10.660Zagents-and-memory
Utility 27
io.github.sadri-dridi/util-027		0HealthyNone3150 ms2026-10-26T10:05:10.491Zagents-and-memory
Utility 20
io.github.sadri-dridi/util-020		0HealthyNone3129 ms2026-10-26T10:05:10.407Zagents-and-memory
Utility 24
io.github.sadri-dridi/util-024		0HealthyNone3115 ms2026-10-26T10:05:10.124Zagents-and-memory
Utility 19
io.github.sadri-dridi/util-019		0HealthyNone31327 ms2026-10-26T10:05:10.089Zagents-and-memory
Utility 31
io.github.sadri-dridi/util-031		0HealthyNone3187 ms2026-10-26T10:05:10.088Zagents-and-memory
Utility 30
io.github.sadri-dridi/util-030		0HealthyNone3118 ms2026-10-26T10:05:10.086Zagents-and-memory
Utility 28
io.github.sadri-dridi/util-028		0HealthyNone3127 ms2026-10-26T10:05:09.836Zagents-and-memory
Utility 26
io.github.sadri-dridi/util-026		0HealthyNone3119 ms2026-10-26T10:05:09.769Zagents-and-memory
Utility 21
io.github.sadri-dridi/util-021		0HealthyNone3119 ms2026-10-26T10:05:09.767Zagents-and-memory
Utility 6
io.github.sadri-dridi/util-006		0HealthyNone3115 ms2026-10-26T10:05:09.765Zagents-and-memory
Utility 13
io.github.sadri-dridi/util-013		0HealthyNone3116 ms2026-10-26T10:05:09.765Zagents-and-memory
Utility 7
io.github.sadri-dridi/util-007		0HealthyNone3116 ms2026-10-26T10:05:09.762Zagents-and-memory
UTF-16LE BOM presence, bytes discarded
io.github.sadri-dridi/utf16le-ok		0HealthyNone3115 ms2026-10-26T10:05:09.761Zagents-and-memory
Utility 22
io.github.sadri-dridi/util-022		0HealthyNone3115 ms2026-10-26T10:05:09.761Zagents-and-memory
Utility 15
io.github.sadri-dridi/util-015		0HealthyNone3111 ms2026-10-26T10:05:09.345Zagents-and-memory
URL path segment count, query discarded
io.github.sadri-dridi/url-path-ok		0HealthyNone3114 ms2026-10-26T10:05:09.156Zagents-and-memory
Utility 23
io.github.sadri-dridi/util-023		0HealthyNone3114 ms2026-10-26T10:05:09.124Zagents-and-memory
UTF-16 BOM/length band, value discarded
io.github.sadri-dridi/utf16-ok		0HealthyNone31562 ms2026-10-26T10:05:09.102Zagents-and-memory
Utility 12
io.github.sadri-dridi/util-012		0HealthyNone31106 ms2026-10-26T10:05:09.102Zagents-and-memory
Utility 18
io.github.sadri-dridi/util-018		0HealthyNone3177 ms2026-10-26T10:05:09.102Zagents-and-memory
UTF-1 signature bytes, input discarded
io.github.sadri-dridi/utf1-sig		0HealthyNone31575 ms2026-10-26T10:05:09.098Zagents-and-memory
Utility 17
io.github.sadri-dridi/util-017		0HealthyNone31505 ms2026-10-26T10:05:09.098Zagents-and-memory
Utility 16
io.github.sadri-dridi/util-016		0HealthyNone31543 ms2026-10-26T10:05:09.097Zagents-and-memory
Utility 1
io.github.sadri-dridi/util-001		0HealthyNone31538 ms2026-10-26T10:05:09.090Zagents-and-memory
Utility 11
io.github.sadri-dridi/util-011		0HealthyNone31531 ms2026-10-26T10:05:09.090Zagents-and-memory
Utility 14
io.github.sadri-dridi/util-014		0HealthyNone31561 ms2026-10-26T10:05:09.090Zagents-and-memory
UTF-8 BOM presence, bytes discarded
io.github.sadri-dridi/utf8sig-ok		0HealthyNone31529 ms2026-10-26T10:05:09.087Zagents-and-memory
Utility 3
io.github.sadri-dridi/util-003		0HealthyNone31528 ms2026-10-26T10:05:09.082Zagents-and-memory
Utility 5
io.github.sadri-dridi/util-005		0HealthyNone3121 ms2026-10-26T10:00:19.804Zagents-and-memory
Utility 4
io.github.sadri-dridi/util-004		0HealthyNone3120 ms2026-10-26T10:00:19.801Zagents-and-memory
Utility 8
io.github.sadri-dridi/util-008		0HealthyNone3120 ms2026-10-26T10:00:19.777Zagents-and-memory
Utility 9
io.github.sadri-dridi/util-009		0HealthyNone3130 ms2026-10-26T10:00:19.750Zagents-and-memory
Utility 10
io.github.sadri-dridi/util-010		0HealthyNone3117 ms2026-10-26T10:00:19.743Zagents-and-memory
UTF-EBCDIC signature, input discarded
io.github.sadri-dridi/utfebcdic-ok		0HealthyNone3123 ms2026-10-26T10:00:19.733Zagents-and-memory
UTF-8 non-ASCII byte count, input discarded
io.github.sadri-dridi/utf8-nb		0HealthyNone3143 ms2026-10-26T10:00:19.713Zagents-and-memory
Utility 2
io.github.sadri-dridi/util-002		0HealthyNone3139 ms2026-10-26T10:00:19.713Zagents-and-memory
UTC offset shape like +02:00
io.github.sadri-dridi/utc-offset-ok		0HealthyNone3038 ms2026-10-26T10:00:19.710Zagents-and-memory
UTC Clock
io.github.sadri-dridi/utc-clock		0HealthyNone3136 ms2026-10-26T10:00:19.707Zagents-and-memory
UTF-8 byte length, text discarded
io.github.sadri-dridi/utf8-bytes		0HealthyNone3137 ms2026-10-26T10:00:19.707Zagents-and-memory
UTF-16 unit count, text discarded
io.github.sadri-dridi/utf16-len		0HealthyNone3130 ms2026-10-26T10:00:19.703Zagents-and-memory
UTF-32LE BOM presence, bytes discarded
io.github.sadri-dridi/utf32le-ok		0HealthyNone3133 ms2026-10-26T10:00:19.703Zagents-and-memory
USD def count, body discarded
io.github.sadri-dridi/usd-ok		0HealthyNone3118 ms2026-10-26T10:00:19.694Zagents-and-memory
UTF-16 code-unit count, text discarded
io.github.sadri-dridi/utf16-n		0HealthyNone3114 ms2026-10-26T10:00:19.684Zagents-and-memory
UTF-32BE BOM presence, bytes discarded
io.github.sadri-dridi/utf32be-ok		0HealthyNone3128 ms2026-10-26T10:00:19.534Zagents-and-memory

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