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Which MCP servers are actually maintained?
The official registry lists every Model Context Protocol server but tells you nothing about whether any of them is still alive. This index scores each one on maintenance activity, flags what deserves a second look before you install it, and shows exactly how every number was reached.
49,991
servers indexed
87
with verified activity
20.0
median score
17,377
carrying risk flags
last refreshed
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Leaderboard
Activity & maintenance, not security — how this is scored| # | Server | Flags | Stars | Change | Score |
|---|---|---|---|---|---|
| 17851 | Agent Visibility Check Is this website visible to AI agents? Robots, llms.txt, sitemap, extraction, then placement. | clean | — | — | 24.0 |
| 17852 | Agents Find Your Product Make a product discoverable to agents: catalog, llms.txt, agent card, hops, MCP door. | clean | — | — | 24.0 |
| 17853 | AI Agent Customers Reach AI agents that need a tool, and the humans who run them. Measured placements. | clean | — | — | 24.0 |
| 17854 | Allow method token count, value discarded Allow method token count, value discarded | clean | — | — | 24.0 |
| 17855 | alphanumeric run count, text discarded alphanumeric run count, text discarded | clean | — | — | 24.0 |
| 17856 | ALPN h2/http/1.1 token, value discarded ALPN h2/http/1.1 token, value discarded | clean | — | — | 24.0 |
| 17857 | ALPN protocol token, value discarded ALPN protocol token, value discarded | clean | — | — | 24.0 |
| 17858 | Image alt length band, text discarded Image alt length band, text discarded | clean | — | — | 24.0 |
| 17859 | img alt attribute count, markup discarded img alt attribute count, markup discarded | clean | — | — | 24.0 |
| 17860 | Angstroms to meters, number discarded Angstroms to meters, number discarded | clean | — | — | 24.0 |
| 17861 | Angstroms to nanometers, number discarded Angstroms to nanometers, number discarded | clean | — | — | 24.0 |
| 17862 | Ansible hosts group count, body discarded Ansible hosts group count, body discarded | clean | — | — | 24.0 |
| 17863 | ANTLR grammar rule count, body discarded ANTLR grammar rule count, body discarded | clean | — | — | 24.0 |
| 17864 | APK ZIP local-file count, bytes discarded APK ZIP local-file count, bytes discarded | clean | — | — | 24.0 |
| 17865 | APKBUILD pkgname shape, body discarded APKBUILD pkgname shape, body discarded | clean | — | — | 24.0 |
| 17866 | ARC-Seal tag count, value discarded ARC-Seal tag count, value discarded | clean | — | — | 24.0 |
| 17867 | Arcminutes to degrees, number discarded Arcminutes to degrees, number discarded | clean | — | — | 24.0 |
| 17868 | Arcseconds to degrees, number discarded Arcseconds to degrees, number discarded | clean | — | — | 24.0 |
| 17869 | Argon2 hex length, input discarded Argon2 hex length, input discarded | clean | — | — | 24.0 |
| 17870 | Argon2d encoded shape, input discarded Argon2d encoded shape, input discarded | clean | — | — | 24.0 |
| 17871 | Argon2i encoded shape, input discarded Argon2i encoded shape, input discarded | clean | — | — | 24.0 |
| 17872 | argon2id encoded hash shape, value discarded argon2id encoded hash shape, value discarded | clean | — | — | 24.0 |
| 17873 | ARIA role token charset, value discarded ARIA role token charset, value discarded | clean | — | — | 24.0 |
| 17874 | ARIA role token charset, value discarded ARIA role token charset, value discarded | clean | — | — | 24.0 |
| 17875 | Arrow IPC magic-byte check, file discarded Arrow IPC magic-byte check, file discarded | clean | — | — | 24.0 |
| 17876 | arXiv id version shape, value discarded arXiv id version shape, value discarded | clean | — | — | 24.0 |
| 17877 | arXiv URI id shape, value discarded arXiv URI id shape, value discarded | clean | — | — | 24.0 |
| 17878 | Asana GID digit shape, value discarded Asana GID digit shape, value discarded | clean | — | — | 24.0 |
| 17879 | ASCII byte length, text discarded ASCII byte length, text discarded | clean | — | — | 24.0 |
| 17880 | 7-bit ASCII charset, value discarded 7-bit ASCII charset, value discarded | clean | — | — | 24.0 |
| 17881 | Ascii85 frame shape, input discarded Ascii85 frame shape, input discarded | clean | — | — | 24.0 |
| 17882 | Ascii85 <~ ~> frame, input discarded Ascii85 <~ ~> frame, input discarded | clean | — | — | 24.0 |
| 17883 | Intel HEX record count, input discarded Intel HEX record count, input discarded | clean | — | — | 24.0 |
| 17884 | AsyncAPI channel count, body discarded AsyncAPI channel count, body discarded | clean | — | — | 24.0 |
| 17885 | AT Protocol DID shape, value discarded AT Protocol DID shape, value discarded | clean | — | — | 24.0 |
| 17886 | Atmospheres to PSI, number discarded Atmospheres to PSI, number discarded | clean | — | — | 24.0 |
| 17887 | Atom feed shape, body discarded Atom feed shape, body discarded | clean | — | — | 24.0 |
| 17888 | Astronomical units to kilometers, number discarded Astronomical units to kilometers, number discarded | clean | — | — | 24.0 |
| 17889 | Australian postcode digit shape, value discarded Australian postcode digit shape, value discarded | clean | — | — | 24.0 |
| 17890 | Authentication-Info nextnonce shape, value discarded Authentication-Info nextnonce shape, value discarded | clean | — | — | 24.0 |
| 17891 | :authority host:port shape, value discarded :authority host:port shape, value discarded | clean | — | — | 24.0 |
| 17892 | AVI RIFF check, file discarded AVI RIFF check, file discarded | clean | — | — | 24.0 |
| 17893 | Avro magic-byte check, file discarded Avro magic-byte check, file discarded | clean | — | — | 24.0 |
| 17894 | Avro object-container magic, body discarded Avro object-container magic, body discarded | clean | — | — | 24.0 |
| 17895 | Base58 charset, input discarded Base58 charset, input discarded | clean | — | — | 24.0 |
| 17896 | Cement bags to cubic meters, number discarded Cement bags to cubic meters, number discarded | clean | — | — | 24.0 |
| 17897 | Bar to atmospheres, number discarded Bar to atmospheres, number discarded | clean | — | — | 24.0 |
| 17898 | Barye to pascals, number discarded Barye to pascals, number discarded | clean | — | — | 24.0 |
| 17899 | Base32 encode, input discarded Base32 encode, input discarded | clean | — | — | 24.0 |
| 17900 | Base36 id charset, value discarded Base36 id charset, value discarded | clean | — | — | 24.0 |
A score measures maintenance activity, not safety. A high score does not mean a server is secure, and a low one does not mean it is dangerous — see the methodology for what each signal does and does not tell you.