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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 |
|---|---|---|---|---|---|
| 17951 | Canadian postal code shape, value discarded Canadian postal code shape, value discarded | clean | — | — | 24.0 |
| 17952 | Cables to meters, number discarded Cables to meters, number discarded | clean | — | — | 24.0 |
| 17953 | Cache-Control token count, value discarded Cache-Control token count, value discarded | clean | — | — | 24.0 |
| 17954 | Calc Eval Evaluate a+b style arithmetic. Expression discarded. | clean | — | — | 24.0 |
| 17955 | camelCase hump count, value discarded camelCase hump count, value discarded | clean | — | — | 24.0 |
| 17956 | camelCase shape, text discarded camelCase shape, text discarded | clean | — | — | 24.0 |
| 17957 | Canonical URL host only, URL discarded Canonical URL host only, URL discarded | clean | — | — | 24.0 |
| 17958 | HTML canonical link count, markup discarded HTML canonical link count, markup discarded | clean | — | — | 24.0 |
| 17959 | Cap'n Proto segment count, body discarded Cap'n Proto segment count, body discarded | clean | — | — | 24.0 |
| 17960 | Cargo.toml crate name shape, body discarded Cargo.toml crate name shape, body discarded | clean | — | — | 24.0 |
| 17961 | Cargo.toml package name shape, body discarded Cargo.toml package name shape, body discarded | clean | — | — | 24.0 |
| 17962 | CBOR major-type count, body discarded CBOR major-type count, body discarded | clean | — | — | 24.0 |
| 17963 | ISO country AD Public ISO 3166-1 record for AD. | clean | — | — | 24.0 |
| 17964 | ISO country AE Public ISO 3166-1 record for AE. | clean | — | — | 24.0 |
| 17965 | ISO country AF Public ISO 3166-1 record for AF. | clean | — | — | 24.0 |
| 17966 | ISO country AG Public ISO 3166-1 record for AG. | clean | — | — | 24.0 |
| 17967 | ISO country AI Public ISO 3166-1 record for AI. | clean | — | — | 24.0 |
| 17968 | ISO country AL Public ISO 3166-1 record for AL. | clean | — | — | 24.0 |
| 17969 | ISO country AM Public ISO 3166-1 record for AM. | clean | — | — | 24.0 |
| 17970 | ISO country AO Public ISO 3166-1 record for AO. | clean | — | — | 24.0 |
| 17971 | ISO country AQ Public ISO 3166-1 record for AQ. | clean | — | — | 24.0 |
| 17972 | ISO country AR Public ISO 3166-1 record for AR. | clean | — | — | 24.0 |
| 17973 | ISO country AS Public ISO 3166-1 record for AS. | clean | — | — | 24.0 |
| 17974 | ISO country AT Public ISO 3166-1 record for AT. | clean | — | — | 24.0 |
| 17975 | ISO country AU Public ISO 3166-1 record for AU. | clean | — | — | 24.0 |
| 17976 | ISO country AW Public ISO 3166-1 record for AW. | clean | — | — | 24.0 |
| 17977 | ISO country AX Public ISO 3166-1 record for AX. | clean | — | — | 24.0 |
| 17978 | ISO country AZ Public ISO 3166-1 record for AZ. | clean | — | — | 24.0 |
| 17979 | ISO country BA Public ISO 3166-1 record for BA. | clean | — | — | 24.0 |
| 17980 | ISO country BB Public ISO 3166-1 record for BB. | clean | — | — | 24.0 |
| 17981 | ISO country BD Public ISO 3166-1 record for BD. | clean | — | — | 24.0 |
| 17982 | ISO country BE Public ISO 3166-1 record for BE. | clean | — | — | 24.0 |
| 17983 | ISO country BF Public ISO 3166-1 record for BF. | clean | — | — | 24.0 |
| 17984 | ISO country BG Public ISO 3166-1 record for BG. | clean | — | — | 24.0 |
| 17985 | ISO country BH Public ISO 3166-1 record for BH. | clean | — | — | 24.0 |
| 17986 | ISO country BI Public ISO 3166-1 record for BI. | clean | — | — | 24.0 |
| 17987 | ISO country BJ Public ISO 3166-1 record for BJ. | clean | — | — | 24.0 |
| 17988 | ISO country BL Public ISO 3166-1 record for BL. | clean | — | — | 24.0 |
| 17989 | ISO country BM Public ISO 3166-1 record for BM. | clean | — | — | 24.0 |
| 17990 | ISO country BN Public ISO 3166-1 record for BN. | clean | — | — | 24.0 |
| 17991 | ISO country BO Public ISO 3166-1 record for BO. | clean | — | — | 24.0 |
| 17992 | ISO country BQ Public ISO 3166-1 record for BQ. | clean | — | — | 24.0 |
| 17993 | ISO country BR Public ISO 3166-1 record for BR. | clean | — | — | 24.0 |
| 17994 | ISO country BS Public ISO 3166-1 record for BS. | clean | — | — | 24.0 |
| 17995 | ISO country BT Public ISO 3166-1 record for BT. | clean | — | — | 24.0 |
| 17996 | ISO country BV Public ISO 3166-1 record for BV. | clean | — | — | 24.0 |
| 17997 | ISO country BW Public ISO 3166-1 record for BW. | clean | — | — | 24.0 |
| 17998 | ISO country BY Public ISO 3166-1 record for BY. | clean | — | — | 24.0 |
| 17999 | ISO country BZ Public ISO 3166-1 record for BZ. | clean | — | — | 24.0 |
| 18000 | ISO country CA Public ISO 3166-1 record for CA. | 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.