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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 |
|---|---|---|---|---|---|
| 18651 | Lex rule count, body discarded Lex rule count, body discarded | clean | — | — | 24.0 |
| 18652 | Lib Docs Hint HTTP status for a public library docs URL. Body discarded. | clean | — | — | 24.0 |
| 18653 | LIN-123 identifier shape, value discarded LIN-123 identifier shape, value discarded | clean | — | — | 24.0 |
| 18654 | Linear ID Shape Check a Linear issue id shape. Id discarded. | clean | — | — | 24.0 |
| 18655 | Survey links to meters, number discarded Survey links to meters, number discarded | clean | — | — | 24.0 |
| 18656 | Link header relation count, value discarded Link header relation count, value discarded | clean | — | — | 24.0 |
| 18657 | HTML link rel count, markup discarded HTML link rel count, markup discarded | clean | — | — | 24.0 |
| 18658 | List API For Agents List a public API where AI agents discover tools, after a bounded readiness check. | clean | — | — | 24.0 |
| 18659 | Liters to US gallons, number discarded Liters to US gallons, number discarded | clean | — | — | 24.0 |
| 18660 | llms.txt Readiness Does a site publish llms.txt, robots permissions and a sitemap agents can use? Bounded check. | clean | — | — | 24.0 |
| 18661 | LM hash 16-hex shape, value discarded LM hash 16-hex shape, value discarded | clean | — | — | 24.0 |
| 18662 | Location absolute-URL shape, value discarded Location absolute-URL shape, value discarded | clean | — | — | 24.0 |
| 18663 | Lockfile family hint, body discarded Lockfile family hint, body discarded | clean | — | — | 24.0 |
| 18664 | lockfile entry-band, body discarded lockfile entry-band, body discarded | clean | — | — | 24.0 |
| 18665 | Long hundredweight to kilograms, number discarded Long hundredweight to kilograms, number discarded | clean | — | — | 24.0 |
| 18666 | lowercase charset, value discarded lowercase charset, value discarded | clean | — | — | 24.0 |
| 18667 | Liters/min to liters/s, number discarded Liters/min to liters/s, number discarded | clean | — | — | 24.0 |
| 18668 | Luhn checksum, number discarded Luhn checksum, number discarded | clean | — | — | 24.0 |
| 18669 | Lux band check, number discarded Lux band check, number discarded | clean | — | — | 24.0 |
| 18670 | Light-years to kilometers, number discarded Light-years to kilometers, number discarded | clean | — | — | 24.0 |
| 18671 | MAC address charset, value discarded MAC address charset, value discarded | clean | — | — | 24.0 |
| 18672 | MAC address shape, value discarded MAC address shape, value discarded | clean | — | — | 24.0 |
| 18673 | Mac Central Europe high-bit band, bytes discarded Mac Central Europe high-bit band, bytes discarded | clean | — | — | 24.0 |
| 18674 | Mach number to m/s at STP, number discarded Mach number to m/s at STP, number discarded | clean | — | — | 24.0 |
| 18675 | Mach-O magic band, bytes discarded Mach-O magic band, bytes discarded | clean | — | — | 24.0 |
| 18676 | MacRoman high-byte band, input discarded MacRoman high-byte band, input discarded | clean | — | — | 24.0 |
| 18677 | magnet: xt shape, value discarded magnet: xt shape, value discarded | clean | — | — | 24.0 |
| 18678 | maildir info-flag charset, value discarded maildir info-flag charset, value discarded | clean | — | — | 24.0 |
| 18679 | mailto: shape, address discarded mailto: shape, address discarded | clean | — | — | 24.0 |
| 18680 | Makefile target count, body discarded Makefile target count, body discarded | clean | — | — | 24.0 |
| 18681 | Markdown heading count, body discarded Markdown heading count, body discarded | clean | — | — | 24.0 |
| 18682 | Whether current UTC hour is weekday NYSE window Whether current UTC hour is weekday NYSE window | clean | — | — | 24.0 |
| 18683 | Maven POM coordinate shape, body discarded Maven POM coordinate shape, body discarded | clean | — | — | 24.0 |
| 18684 | MCP Listing For Products Give a product an MCP door and hops so agents on MCP registries can reach it. | clean | — | — | 24.0 |
| 18685 | Markdown heading count, text discarded Markdown heading count, text discarded | clean | — | — | 24.0 |
| 18686 | MD2 hex length, input discarded MD2 hex length, input discarded | clean | — | — | 24.0 |
| 18687 | MD2 hex length, input discarded MD2 hex length, input discarded | clean | — | — | 24.0 |
| 18688 | MD4 hex length, input discarded MD4 hex length, input discarded | clean | — | — | 24.0 |
| 18689 | MD4 hex length, input discarded MD4 hex length, input discarded | clean | — | — | 24.0 |
| 18690 | MD6 hex length, input discarded MD6 hex length, input discarded | clean | — | — | 24.0 |
| 18691 | Memory Key Count Count keys in a JSON object. Values discarded. | clean | — | — | 24.0 |
| 18692 | HTML meta tag count, markup discarded HTML meta tag count, markup discarded | clean | — | — | 24.0 |
| 18693 | Whether a token is an HTTP method Whether a token is an HTTP method | clean | — | — | 24.0 |
| 18694 | Meters to feet, number discarded Meters to feet, number discarded | clean | — | — | 24.0 |
| 18695 | MetroHash hex length, input discarded MetroHash hex length, input discarded | clean | — | — | 24.0 |
| 18696 | MetroHash64 hex length, input discarded MetroHash64 hex length, input discarded | clean | — | — | 24.0 |
| 18697 | MetroHash64 hex length, input discarded MetroHash64 hex length, input discarded | clean | — | — | 24.0 |
| 18698 | Milligrams to grams, number discarded Milligrams to grams, number discarded | clean | — | — | 24.0 |
| 18699 | Megahertz to gigahertz, number discarded Megahertz to gigahertz, number discarded | clean | — | — | 24.0 |
| 18700 | Miles to meters, number discarded Miles to meters, number 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.