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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 |
|---|---|---|---|---|---|
| 18751 | Notion URL Shape Check a Notion URL shape. Path discarded. | clean | — | — | 24.0 |
| 18752 | npm Name Shape Check an npm package name shape. Name discarded. | clean | — | — | 24.0 |
| 18753 | nupkg nuspec id shape, body discarded nupkg nuspec id shape, body discarded | clean | — | — | 24.0 |
| 18754 | obfuscated integer id band, value discarded obfuscated integer id band, value discarded | clean | — | — | 24.0 |
| 18755 | Wavefront OBJ vertex count, file discarded Wavefront OBJ vertex count, file discarded | clean | — | — | 24.0 |
| 18756 | Mongo ObjectId base64 shape, value discarded Mongo ObjectId base64 shape, value discarded | clean | — | — | 24.0 |
| 18757 | Mongo ObjectId 24-hex, value discarded Mongo ObjectId 24-hex, value discarded | clean | — | — | 24.0 |
| 18758 | Mongo ObjectId hex length, value discarded Mongo ObjectId hex length, value discarded | clean | — | — | 24.0 |
| 18759 | ObjectId 4-byte time prefix, value discarded ObjectId 4-byte time prefix, value discarded | clean | — | — | 24.0 |
| 18760 | OCI image reference shape, name discarded OCI image reference shape, name discarded | clean | — | — | 24.0 |
| 18761 | Open Graph meta count, markup discarded Open Graph meta count, markup discarded | clean | — | — | 24.0 |
| 18762 | Open Graph tag count, markup discarded Open Graph tag count, markup discarded | clean | — | — | 24.0 |
| 18763 | Ogg magic-byte check, file discarded Ogg magic-byte check, file discarded | clean | — | — | 24.0 |
| 18764 | ASN.1 OID arc shape, value discarded ASN.1 OID arc shape, value discarded | clean | — | — | 24.0 |
| 18765 | OpenAPI version key shape, body discarded OpenAPI version key shape, body discarded | clean | — | — | 24.0 |
| 18766 | ORC magic-byte check, file discarded ORC magic-byte check, file discarded | clean | — | — | 24.0 |
| 18767 | Origin scheme+host shape, URL discarded Origin scheme+host shape, URL discarded | clean | — | — | 24.0 |
| 18768 | Origin header shape, value discarded Origin header shape, value discarded | clean | — | — | 24.0 |
| 18769 | OWL class axiom count, body discarded OWL class axiom count, body discarded | clean | — | — | 24.0 |
| 18770 | Troy ounces to grams, number discarded Troy ounces to grams, number discarded | clean | — | — | 24.0 |
| 18771 | Pascals to kilopascals, number discarded Pascals to kilopascals, number discarded | clean | — | — | 24.0 |
| 18772 | package.json key count, values discarded package.json key count, values discarded | clean | — | — | 24.0 |
| 18773 | package.json key count, body discarded package.json key count, body discarded | clean | — | — | 24.0 |
| 18774 | Packer source block count, body discarded Packer source block count, body discarded | clean | — | — | 24.0 |
| 18775 | Paragraph count, text discarded Paragraph count, text discarded | clean | — | — | 24.0 |
| 18776 | paragraph-break count, text discarded paragraph-break count, text discarded | clean | — | — | 24.0 |
| 18777 | paragraph count, text discarded paragraph count, text discarded | clean | — | — | 24.0 |
| 18778 | Parquet magic-byte check, file discarded Parquet magic-byte check, file discarded | clean | — | — | 24.0 |
| 18779 | Parquet magic-byte check, file discarded Parquet magic-byte check, file discarded | clean | — | — | 24.0 |
| 18780 | PascalCase hump count, value discarded PascalCase hump count, value discarded | clean | — | — | 24.0 |
| 18781 | PascalCase token count, value discarded PascalCase token count, value discarded | clean | — | — | 24.0 |
| 18782 | Pascal pressure band, number discarded Pascal pressure band, number discarded | clean | — | — | 24.0 |
| 18783 | PascalCase charset, value discarded PascalCase charset, value discarded | clean | — | — | 24.0 |
| 18784 | :path absolute-path shape, value discarded :path absolute-path shape, value discarded | clean | — | — | 24.0 |
| 18785 | path/case segment count, text discarded path/case segment count, text discarded | clean | — | — | 24.0 |
| 18786 | path/case segment count, value discarded path/case segment count, value discarded | clean | — | — | 24.0 |
| 18787 | POSIX path shape, path discarded POSIX path shape, path discarded | clean | — | — | 24.0 |
| 18788 | path/case segment count, value discarded path/case segment count, value discarded | clean | — | — | 24.0 |
| 18789 | PBKDF2 hex length, input discarded PBKDF2 hex length, input discarded | clean | — | — | 24.0 |
| 18790 | Parsecs to light-years, number discarded Parsecs to light-years, number discarded | clean | — | — | 24.0 |
| 18791 | pcap magic endian, bytes discarded pcap magic endian, bytes discarded | clean | — | — | 24.0 |
| 18792 | Percent-triplet count, input discarded Percent-triplet count, input discarded | clean | — | — | 24.0 |
| 18793 | PDF magic-byte check, file discarded PDF magic-byte check, file discarded | clean | — | — | 24.0 |
| 18794 | PDF URL Check HEAD a public URL and say whether it looks like a PDF. Body discarded. | clean | — | — | 24.0 |
| 18795 | PE MZ/PE signature, bytes discarded PE MZ/PE signature, bytes discarded | clean | — | — | 24.0 |
| 18796 | US pecks to liters, number discarded US pecks to liters, number discarded | clean | — | — | 24.0 |
| 18797 | PEG rule count, body discarded PEG rule count, body discarded | clean | — | — | 24.0 |
| 18798 | PEM fence check, key discarded PEM fence check, key discarded | clean | — | — | 24.0 |
| 18799 | PEM fence check, key discarded PEM fence check, key discarded | clean | — | — | 24.0 |
| 18800 | PEM fence shape, key discarded PEM fence shape, key 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.