Which MCP servers actually work?

We track 49324 servers from the official MCP Registry. 32464 are hosted (remote); we have health-checked 32186 so far. 287 use templated URLs that need user-specific values and can't be checked. Of those checked, 17660 passed a full MCP handshake, 8998 are up but need credentials, and 5528 failed or were unreachable (last check 2026-10-24T03:55:20.250Z UTC). How we check.

ServerUsers (30 d)HandshakeAuthToolsLatencyLast checked (UTC)Category
DTD ELEMENT count, body discarded
io.github.sadri-dridi/dtd-ok
0HealthyNone31101 ms2026-10-23T09:40:12.522Zagents-and-memory
dot.case segment count, value discarded
io.github.sadri-dridi/dot-ok
0HealthyNone31626 ms2026-10-23T09:40:12.520Zagents-and-memory
Whether current UTC month is NZ DST-heavy
io.github.sadri-dridi/dst-nz
0HealthyNone31596 ms2026-10-23T09:40:12.520Zagents-and-memory
doi: URI suffix shape, value discarded
io.github.sadri-dridi/doi-uri
0HealthyNone31732 ms2026-10-23T09:40:12.517Zagents-and-memory
Whether a zone name looks like DST-aware
io.github.sadri-dridi/dst-hint
0HealthyNone31650 ms2026-10-23T09:40:12.517Zagents-and-memory
Whether current UTC month is DST-heavy in the US
io.github.sadri-dridi/dst-hint-utc
0HealthyNone30621 ms2026-10-23T09:40:12.517Zagents-and-memory
Domain label split
io.github.sadri-dridi/domain-labels
0HealthyNone31693 ms2026-10-23T09:40:12.510Zagents-and-memory
US fluid drams to milliliters, number discarded
io.github.sadri-dridi/dram-ml
0HealthyNone31693 ms2026-10-23T09:40:12.510Zagents-and-memory
DOI 10. prefix shape, id discarded
io.github.sadri-dridi/doi-ok
0HealthyNone31996 ms2026-10-23T09:40:12.508Zagents-and-memory
Dotfile name charset, name discarded
io.github.sadri-dridi/dotfile-ok
0HealthyNone31990 ms2026-10-23T09:40:12.508Zagents-and-memory
Whether current UTC month is AU DST-heavy
io.github.sadri-dridi/dst-au
0HealthyNone311110 ms2026-10-23T09:40:12.504Zagents-and-memory
Whether current UTC month is EU DST-heavy
io.github.sadri-dridi/dst-eu
0HealthyNone31972 ms2026-10-23T09:40:12.504Zagents-and-memory
dot.case segment count, text discarded
io.github.sadri-dridi/dot-n
0HealthyNone31977 ms2026-10-23T09:40:12.502Zagents-and-memory
EU DST in-force band
io.github.sadri-dridi/dst-eu2
0HealthyNone311057 ms2026-10-23T09:40:12.502Zagents-and-memory
https://doi.org/ URL shape, value discarded
io.github.sadri-dridi/doi-url
0HealthyNone311079 ms2026-10-23T09:40:12.497Zagents-and-memory
Es la hora de la verdad (Congreso de los Diputados)
es.eslahoradelaverdad/congreso
0HealthyNone83385 ms2026-10-23T09:35:18.306Zother
dotenv key count, values discarded
io.github.sadri-dridi/dotenv-keys
0HealthyNone3119 ms2026-10-23T09:35:15.876Zagents-and-memory
Whether current UTC month is Chile DST-heavy
io.github.sadri-dridi/dst-cl
0HealthyNone3116 ms2026-10-23T09:35:15.841Zagents-and-memory
Metric drops to milliliters, number discarded
io.github.sadri-dridi/drop-ml
0HealthyNone3126 ms2026-10-23T09:35:15.754Zagents-and-memory
NexusSDR AI — 4-Agent B2B Buying-Intent & Outbound MCP Server
sh.surge.nexussdr-cloud/mcp
0HealthyNone41062 ms2026-10-23T09:35:15.734Zcrypto-web3
Oronzo Milan Direct Booking
run.val.web.oronzo--dbb1424cc94f11f18b571607ee4eb77e/milan-direct-booking
0HealthyNone2944 ms2026-10-23T09:35:15.699Zother
Content-Disposition filename charset, value discarded
io.github.sadri-dridi/download-ok
0HealthyNone3122 ms2026-10-23T09:35:15.631Zagents-and-memory
UTC day of year
io.github.sadri-dridi/doy-utc
0HealthyNone3117 ms2026-10-23T09:35:15.613Zagents-and-memory
DOI 10. prefix shape, value discarded
io.github.sadri-dridi/doi-ok2
0HealthyNone31142 ms2026-10-23T09:35:15.548Zagents-and-memory
dotenv key count, values discarded
io.github.sadri-dridi/dotenv-ok
0HealthyNone31133 ms2026-10-23T09:35:15.548Zagents-and-memory
Day-of-year 1-366 band
io.github.sadri-dridi/doy-ok
0HealthyNone31122 ms2026-10-23T09:35:15.539Zagents-and-memory
DOI Shape
io.github.sadri-dridi/doi-shape
0HealthyNone31122 ms2026-10-23T09:35:15.533Zagents-and-memory
docs heading-anchor charset, value discarded
io.github.sadri-dridi/docs-anchor2
0HealthyNone3168 ms2026-10-23T09:35:15.518Zdocs-and-knowledge
Didot points to millimeters, number discarded
io.github.sadri-dridi/didot-mm
0HealthyNone3189 ms2026-10-23T09:35:15.500Zagents-and-memory
docs path segment count, value discarded
io.github.sadri-dridi/docs-path-ok
0HealthyNone3170 ms2026-10-23T09:35:15.473Zdocs-and-knowledge
Agent Harbor pay-per-call tools
io.github.yandyman/agent-harbor-x402
0HealthyNone101043 ms2026-10-23T09:35:15.471Zagents-and-memory
docs page slug charset, value discarded
io.github.sadri-dridi/docs-slug-ok
0HealthyNone3162 ms2026-10-23T09:35:15.415Zdocs-and-knowledge
docs heading-anchor charset, value discarded
io.github.sadri-dridi/docs-anchor-ok
0HealthyNone3121 ms2026-10-23T09:35:15.348Zdocs-and-knowledge
Docker Image Shape
io.github.sadri-dridi/docker-image-shape
0HealthyNone3199 ms2026-10-23T09:35:15.183Zai-and-media
DNT 0/1 token, value discarded
io.github.sadri-dridi/dnt-ok
0HealthyNone3143 ms2026-10-23T09:35:15.134Zagents-and-memory
Dockerfile instruction count, body discarded
io.github.sadri-dridi/dockerfile-ok
0HealthyNone3150 ms2026-10-23T09:35:15.134Zagents-and-memory
djb2 hex, input discarded
io.github.sadri-dridi/djb2-ok
0HealthyNone3134 ms2026-10-23T09:35:15.074Zagents-and-memory
Discordian season 1-5 band
io.github.sadri-dridi/discordian-ok
0HealthyNone3114 ms2026-10-23T09:35:14.890Zagents-and-memory
XDG desktop entry keys, body discarded
io.github.sadri-dridi/desktop-ok
0HealthyNone3116 ms2026-10-23T09:35:14.887Zagents-and-memory
Discord snowflake id shape, value discarded
io.github.sadri-dridi/discord-id-ok
0HealthyNone3120 ms2026-10-23T09:35:14.863Zcommunication
DID method shape, value discarded
io.github.sadri-dridi/did-ok
0HealthyNone31774 ms2026-10-23T09:35:14.818Zagents-and-memory
DKIM-Signature tag count, value discarded
io.github.sadri-dridi/dkim-ok
0HealthyNone31209 ms2026-10-23T09:35:14.816Zagents-and-memory
did:ethr address shape, value discarded
io.github.sadri-dridi/did-ethr
0HealthyNone3127 ms2026-10-23T09:35:14.814Zagents-and-memory
did:web host shape, value discarded
io.github.sadri-dridi/did-web
0HealthyNone31173 ms2026-10-23T09:35:14.812Zagents-and-memory
Discord snowflake worker bits, id discarded
io.github.sadri-dridi/discord-worker
0HealthyNone3195 ms2026-10-23T09:35:14.426Zcommunication
Discord Webhook Shape
io.github.sadri-dridi/discord-webhook-shape
0HealthyNone31132 ms2026-10-23T09:35:14.417Zcommunication
did:webvh SCID shape, value discarded
io.github.sadri-dridi/did-webvh
0HealthyNone31245 ms2026-10-23T09:35:14.413Zagents-and-memory
did:ion suffix shape, value discarded
io.github.sadri-dridi/did-ion
0HealthyNone31321 ms2026-10-23T09:35:14.401Zagents-and-memory
digit run count, text discarded
io.github.sadri-dridi/digit-n
0HealthyNone31298 ms2026-10-23T09:35:14.380Zagents-and-memory
sha256 digest shape, value discarded
io.github.sadri-dridi/digest-sha256-ok
0HealthyNone31288 ms2026-10-23T09:35:14.373Zagents-and-memory

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