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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.
54,385
servers indexed
86
with verified activity
20.0
median score
19,556
carrying risk flags
last refreshed
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Leaderboard
Activity & maintenance, not security — how this is scored| # | Server | Flags | Stars | Change | Score |
|---|---|---|---|---|---|
| 25451 | Lat/lng bounding-box shape Lat/lng bounding-box shape | info | — | — | 21.0 |
| 25452 | Pounds to kilograms Pounds to kilograms | info | — | — | 21.0 |
| 25453 | Gregorian leap-year band Gregorian leap-year band | info | — | — | 21.0 |
| 25454 | Leap year check Leap year check | info | — | — | 21.0 |
| 25455 | UTC leap-year flag UTC leap-year flag | info | — | — | 21.0 |
| 25456 | Line count, text discarded Line count, text discarded | info | — | — | 21.0 |
| 25457 | Lux to phot, number discarded Lux to phot, number discarded | info | — | — | 21.0 |
| 25458 | Lux to foot-candles Lux to foot-candles | info | — | — | 21.0 |
| 25459 | Meters to feet Meters to feet | info | — | — | 21.0 |
| 25460 | Mayan Long Count baktun band Mayan Long Count baktun band | info | — | — | 21.0 |
| 25461 | Megabytes to gigabytes Megabytes to gigabytes | info | — | — | 21.0 |
| 25462 | MD5 hex, input discarded MD5 hex, input discarded | info | — | — | 21.0 |
| 25463 | RFC 6838 media type shape RFC 6838 media type shape | info | — | — | 21.0 |
| 25464 | GET is allowed GET is allowed | info | — | — | 21.0 |
| 25465 | POST is allowed on MCP POST is allowed on MCP | info | — | — | 21.0 |
| 25466 | Miles to kilometers Miles to kilometers | info | — | — | 21.0 |
| 25467 | MIME csv Public MIME token for csv. | info | — | — | 21.0 |
| 25468 | text/html marker text/html marker | info | — | — | 21.0 |
| 25469 | MIME jpeg Public MIME token for jpeg. | info | — | — | 21.0 |
| 25470 | application/json marker application/json marker | info | — | — | 21.0 |
| 25471 | text/markdown marker text/markdown marker | info | — | — | 21.0 |
| 25472 | MIME mp3 Public MIME token for mp3. | info | — | — | 21.0 |
| 25473 | MIME mp4 Public MIME token for mp4. | info | — | — | 21.0 |
| 25474 | MIME octet Public MIME token for octet. | info | — | — | 21.0 |
| 25475 | MIME pdf Public MIME token for pdf. | info | — | — | 21.0 |
| 25476 | MIME plain Public MIME token for plain. | info | — | — | 21.0 |
| 25477 | MIME png Public MIME token for png. | info | — | — | 21.0 |
| 25478 | MIME svg Public MIME token for svg. | info | — | — | 21.0 |
| 25479 | MIME toml Public MIME token for toml. | info | — | — | 21.0 |
| 25480 | MIME wav Public MIME token for wav. | info | — | — | 21.0 |
| 25481 | MIME webm Public MIME token for webm. | info | — | — | 21.0 |
| 25482 | MIME webp Public MIME token for webp. | info | — | — | 21.0 |
| 25483 | MIME xml Public MIME token for xml. | info | — | — | 21.0 |
| 25484 | MIME yaml Public MIME token for yaml. | info | — | — | 21.0 |
| 25485 | UTC minute 0-59 band UTC minute 0-59 band | info | — | — | 21.0 |
| 25486 | Minutes to seconds Minutes to seconds | info | — | — | 21.0 |
| 25487 | Minguo year band Minguo year band | info | — | — | 21.0 |
| 25488 | UTC minute UTC minute | info | — | — | 21.0 |
| 25489 | Modified Julian day band Modified Julian day band | info | — | — | 21.0 |
| 25490 | Modified Julian Day integer Modified Julian Day integer | info | — | — | 21.0 |
| 25491 | Milliliters to teaspoons Milliliters to teaspoons | info | — | — | 21.0 |
| 25492 | n modulo m, numbers discarded n modulo m, numbers discarded | info | — | — | 21.0 |
| 25493 | Days in the current UTC month Days in the current UTC month | info | — | — | 21.0 |
| 25494 | Days in current UTC month Days in current UTC month | info | — | — | 21.0 |
| 25495 | UTC month name UTC month name | info | — | — | 21.0 |
| 25496 | Miles per hour to km/h Miles per hour to km/h | info | — | — | 21.0 |
| 25497 | UTC millisecond 0-999 band UTC millisecond 0-999 band | info | — | — | 21.0 |
| 25498 | UTC milliseconds remainder UTC milliseconds remainder | info | — | — | 21.0 |
| 25499 | UTC millisecond 0-999 band UTC millisecond 0-999 band | info | — | — | 21.0 |
| 25500 | Nano ID shape check Nano ID shape check | info | — | — | 21.0 |
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.