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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 |
|---|---|---|---|---|---|
| 18851 | Pragma token charset, value discarded Pragma token charset, value discarded | clean | — | — | 24.0 |
| 18852 | Prettier JSON/YAML key count, body discarded Prettier JSON/YAML key count, body discarded | clean | — | — | 24.0 |
| 18853 | Priority u=/i= pair count, value discarded Priority u=/i= pair count, value discarded | clean | — | — | 24.0 |
| 18854 | Product For Agents Index Index for products built for agents: readiness, placement, client center, 7-day trial. | clean | — | — | 24.0 |
| 18855 | Protobuf field-tag count, body discarded Protobuf field-tag count, body discarded | clean | — | — | 24.0 |
| 18856 | protobuf3 message count, body discarded protobuf3 message count, body discarded | clean | — | — | 24.0 |
| 18857 | Protobuf wire-type scan, body discarded Protobuf wire-type scan, body discarded | clean | — | — | 24.0 |
| 18858 | Proxy-Authenticate scheme token, value discarded Proxy-Authenticate scheme token, value discarded | clean | — | — | 24.0 |
| 18859 | PS metric horsepower to watts, number discarded PS metric horsepower to watts, number discarded | clean | — | — | 24.0 |
| 18860 | PSI to kilopascals, number discarded PSI to kilopascals, number discarded | clean | — | — | 24.0 |
| 18861 | US pints to liters, number discarded US pints to liters, number discarded | clean | — | — | 24.0 |
| 18862 | punctuation count, text discarded punctuation count, text discarded | clean | — | — | 24.0 |
| 18863 | punctuation charset, value discarded punctuation charset, value discarded | clean | — | — | 24.0 |
| 18864 | Punycode host shape, value discarded Punycode host shape, value discarded | clean | — | — | 24.0 |
| 18865 | Punycode output length band, host discarded Punycode output length band, host discarded | clean | — | — | 24.0 |
| 18866 | Punycode ACE prefix, host discarded Punycode ACE prefix, host discarded | clean | — | — | 24.0 |
| 18867 | IDNA2003 ACE prefix, host discarded IDNA2003 ACE prefix, host discarded | clean | — | — | 24.0 |
| 18868 | IDNA2008 A-label shape, host discarded IDNA2008 A-label shape, host discarded | clean | — | — | 24.0 |
| 18869 | Punycode length, input discarded Punycode length, input discarded | clean | — | — | 24.0 |
| 18870 | Puppet class count, body discarded Puppet class count, body discarded | clean | — | — | 24.0 |
| 18871 | pkg:gem package-url shape, value discarded pkg:gem package-url shape, value discarded | clean | — | — | 24.0 |
| 18872 | pkg:npm package-url shape, value discarded pkg:npm package-url shape, value discarded | clean | — | — | 24.0 |
| 18873 | pkg:pypi package-url shape, value discarded pkg:pypi package-url shape, value discarded | clean | — | — | 24.0 |
| 18874 | Firebase push-id charset, value discarded Firebase push-id charset, value discarded | clean | — | — | 24.0 |
| 18875 | Firebase push-id 20-char, value discarded Firebase push-id 20-char, value discarded | clean | — | — | 24.0 |
| 18876 | Firebase push-id entropy charset, value discarded Firebase push-id entropy charset, value discarded | clean | — | — | 24.0 |
| 18877 | Firebase push-id time prefix, value discarded Firebase push-id time prefix, value discarded | clean | — | — | 24.0 |
| 18878 | PowerShell backtick-escape count, input discarded PowerShell backtick-escape count, input discarded | clean | — | — | 24.0 |
| 18879 | Python string escape count, input discarded Python string escape count, input discarded | clean | — | — | 24.0 |
| 18880 | Python unicode-escape count, input discarded Python unicode-escape count, input discarded | clean | — | — | 24.0 |
| 18881 | pyproject.toml table count, body discarded pyproject.toml table count, body discarded | clean | — | — | 24.0 |
| 18882 | UTC last day of the current quarter UTC last day of the current quarter | clean | — | — | 24.0 |
| 18883 | UTC midpoint day of the current quarter UTC midpoint day of the current quarter | clean | — | — | 24.0 |
| 18884 | UTC start of the current quarter UTC start of the current quarter | clean | — | — | 24.0 |
| 18885 | UTC first day of the current quarter UTC first day of the current quarter | clean | — | — | 24.0 |
| 18886 | Q-encoding charset, input discarded Q-encoding charset, input discarded | clean | — | — | 24.0 |
| 18887 | Quoted-printable soft-break count, input discarded Quoted-printable soft-break count, input discarded | clean | — | — | 24.0 |
| 18888 | US quarts to liters, number discarded US quarts to liters, number discarded | clean | — | — | 24.0 |
| 18889 | Imperial quarts to liters, number discarded Imperial quarts to liters, number discarded | clean | — | — | 24.0 |
| 18890 | UTC start of the current quarter UTC start of the current quarter | clean | — | — | 24.0 |
| 18891 | Query pair count, URL discarded Query pair count, URL discarded | clean | — | — | 24.0 |
| 18892 | Quintals to kilograms, number discarded Quintals to kilograms, number discarded | clean | — | — | 24.0 |
| 18893 | Quoted-printable length, input discarded Quoted-printable length, input discarded | clean | — | — | 24.0 |
| 18894 | RFC 2047 encoded-word shape, input discarded RFC 2047 encoded-word shape, input discarded | clean | — | — | 24.0 |
| 18895 | Quoted-printable length, text discarded Quoted-printable length, text discarded | clean | — | — | 24.0 |
| 18896 | Rankine to kelvin, number discarded Rankine to kelvin, number discarded | clean | — | — | 24.0 |
| 18897 | Range bytes start-end shape, value discarded Range bytes start-end shape, value discarded | clean | — | — | 24.0 |
| 18898 | a/b ratio shape, numbers discarded a/b ratio shape, numbers discarded | clean | — | — | 24.0 |
| 18899 | X-Real-IP IPv4/IPv6 shape, value discarded X-Real-IP IPv4/IPv6 shape, value discarded | clean | — | — | 24.0 |
| 18900 | Redis URL Shape Check a Redis URL shape. Credentials 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.