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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 |
|---|---|---|---|---|---|
| 18401 | Fletcher-32 hex length, input discarded Fletcher-32 hex length, input discarded | clean | — | — | 24.0 |
| 18402 | US fluid ounces to milliliters, number discarded US fluid ounces to milliliters, number discarded | clean | — | — | 24.0 |
| 18403 | Femtometres to meters, number discarded Femtometres to meters, number discarded | clean | — | — | 24.0 |
| 18404 | FNV-1a 128 hex length, input discarded FNV-1a 128 hex length, input discarded | clean | — | — | 24.0 |
| 18405 | FNV-1a 64-bit hex, input discarded FNV-1a 64-bit hex, input discarded | clean | — | — | 24.0 |
| 18406 | FNV-1a 64 hex length, input discarded FNV-1a 64 hex length, input discarded | clean | — | — | 24.0 |
| 18407 | Tabindex integer band, value discarded Tabindex integer band, value discarded | clean | — | — | 24.0 |
| 18408 | Forwarded by= hop count, value discarded Forwarded by= hop count, value discarded | clean | — | — | 24.0 |
| 18409 | Forwarded for= hop count, value discarded Forwarded for= hop count, value discarded | clean | — | — | 24.0 |
| 18410 | Forwarded pair count, value discarded Forwarded pair count, value discarded | clean | — | — | 24.0 |
| 18411 | Feet/s to km/h, number discarded Feet/s to km/h, number discarded | clean | — | — | 24.0 |
| 18412 | Feet per second to m/s, number discarded Feet per second to m/s, number discarded | clean | — | — | 24.0 |
| 18413 | INSEE commune code shape, value discarded INSEE commune code shape, value discarded | clean | — | — | 24.0 |
| 18414 | friendly-id hyphen groups, value discarded friendly-id hyphen groups, value discarded | clean | — | — | 24.0 |
| 18415 | fstab field-count band, line discarded fstab field-count band, line discarded | clean | — | — | 24.0 |
| 18416 | Furlongs to meters, number discarded Furlongs to meters, number discarded | clean | — | — | 24.0 |
| 18417 | US federal fiscal year from UTC US federal fiscal year from UTC | clean | — | — | 24.0 |
| 18418 | US federal fiscal quarter from UTC US federal fiscal quarter from UTC | clean | — | — | 24.0 |
| 18419 | Grams to kilograms, number discarded Grams to kilograms, number discarded | clean | — | — | 24.0 |
| 18420 | GB18030 4-byte band, input discarded GB18030 4-byte band, input discarded | clean | — | — | 24.0 |
| 18421 | GBK lead-byte band, bytes discarded GBK lead-byte band, bytes discarded | clean | — | — | 24.0 |
| 18422 | GCD of two integers, numbers discarded GCD of two integers, numbers discarded | clean | — | — | 24.0 |
| 18423 | Gemfile gem count, versions discarded Gemfile gem count, versions discarded | clean | — | — | 24.0 |
| 18424 | Gemfile gem count, versions discarded Gemfile gem count, versions discarded | clean | — | — | 24.0 |
| 18425 | gemspec name= shape, body discarded gemspec name= shape, body discarded | clean | — | — | 24.0 |
| 18426 | Geo Hint Latitude and longitude for a place via Open-Meteo. Query discarded. | clean | — | — | 24.0 |
| 18427 | geo: URI coordinate shape, value discarded geo: URI coordinate shape, value discarded | clean | — | — | 24.0 |
| 18428 | GeoJSON feature count, coords discarded GeoJSON feature count, coords discarded | clean | — | — | 24.0 |
| 18429 | Get Agent Customers Place a product where AI agents discover tools; their operators become customers. 7-day trial. | clean | — | — | 24.0 |
| 18430 | GitHub commit URL shape, path discarded GitHub commit URL shape, path discarded | clean | — | — | 24.0 |
| 18431 | GitHub gist id charset, value discarded GitHub gist id charset, value discarded | clean | — | — | 24.0 |
| 18432 | GitHub issue URL shape, path discarded GitHub issue URL shape, path discarded | clean | — | — | 24.0 |
| 18433 | GitHub packages name shape, value discarded GitHub packages name shape, value discarded | clean | — | — | 24.0 |
| 18434 | GitHub pull request URL shape, path discarded GitHub pull request URL shape, path discarded | clean | — | — | 24.0 |
| 18435 | GitHub release tag URL shape, path discarded GitHub release tag URL shape, path discarded | clean | — | — | 24.0 |
| 18436 | GitHub release tag URL shape, path discarded GitHub release tag URL shape, path discarded | clean | — | — | 24.0 |
| 18437 | GitHub Actions run id digits, value discarded GitHub Actions run id digits, value discarded | clean | — | — | 24.0 |
| 18438 | GitHub commit SHA hex, value discarded GitHub commit SHA hex, value discarded | clean | — | — | 24.0 |
| 18439 | GitHub commit URL shape, path discarded GitHub commit URL shape, path discarded | clean | — | — | 24.0 |
| 18440 | GitHub topic slug charset, value discarded GitHub topic slug charset, value discarded | clean | — | — | 24.0 |
| 18441 | GIF magic-byte check, file discarded GIF magic-byte check, file discarded | clean | — | — | 24.0 |
| 18442 | Gills to milliliters, number discarded Gills to milliliters, number discarded | clean | — | — | 24.0 |
| 18443 | Git branch name safety, name discarded Git branch name safety, name discarded | clean | — | — | 24.0 |
| 18444 | Git Ref Shape Check whether a git ref name is safe. Name discarded. | clean | — | — | 24.0 |
| 18445 | Git SHA hex length, value discarded Git SHA hex length, value discarded | clean | — | — | 24.0 |
| 18446 | Git tag name safety, name discarded Git tag name safety, name discarded | clean | — | — | 24.0 |
| 18447 | gitconfig section count, body discarded gitconfig section count, body discarded | clean | — | — | 24.0 |
| 18448 | GitHub Repo Shape Parse owner and repo from a GitHub URL. Path discarded. | clean | — | — | 24.0 |
| 18449 | gitignore negation rule count, body discarded gitignore negation rule count, body discarded | clean | — | — | 24.0 |
| 18450 | gitignore rule count, body discarded gitignore rule count, body 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.