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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 |
|---|---|---|---|---|---|
| 18201 | ISO country VI Public ISO 3166-1 record for VI. | clean | — | — | 24.0 |
| 18202 | ISO country VN Public ISO 3166-1 record for VN. | clean | — | — | 24.0 |
| 18203 | ISO country VU Public ISO 3166-1 record for VU. | clean | — | — | 24.0 |
| 18204 | ISO country WF Public ISO 3166-1 record for WF. | clean | — | — | 24.0 |
| 18205 | ISO country WS Public ISO 3166-1 record for WS. | clean | — | — | 24.0 |
| 18206 | ISO country YE Public ISO 3166-1 record for YE. | clean | — | — | 24.0 |
| 18207 | ISO country YT Public ISO 3166-1 record for YT. | clean | — | — | 24.0 |
| 18208 | ISO country ZA Public ISO 3166-1 record for ZA. | clean | — | — | 24.0 |
| 18209 | ISO country ZM Public ISO 3166-1 record for ZM. | clean | — | — | 24.0 |
| 18210 | ISO country ZW Public ISO 3166-1 record for ZW. | clean | — | — | 24.0 |
| 18211 | CF-Connecting-IP shape, value discarded CF-Connecting-IP shape, value discarded | clean | — | — | 24.0 |
| 18212 | CF-IPCountry ISO2, value discarded CF-IPCountry ISO2, value discarded | clean | — | — | 24.0 |
| 18213 | CF-Ray id hex shape, value discarded CF-Ray id hex shape, value discarded | clean | — | — | 24.0 |
| 18214 | CF-Visitor scheme token, value discarded CF-Visitor scheme token, value discarded | clean | — | — | 24.0 |
| 18215 | Cubic feet/min to m3/s, number discarded Cubic feet/min to m3/s, number discarded | clean | — | — | 24.0 |
| 18216 | Cubic feet/s to m3/s, number discarded Cubic feet/s to m3/s, number discarded | clean | — | — | 24.0 |
| 18217 | Chains to meters, number discarded Chains to meters, number discarded | clean | — | — | 24.0 |
| 18218 | Character count, text discarded Character count, text discarded | clean | — | — | 24.0 |
| 18219 | Ciceros to millimeters, number discarded Ciceros to millimeters, number discarded | clean | — | — | 24.0 |
| 18220 | CIDv1 base32 prefix, value discarded CIDv1 base32 prefix, value discarded | clean | — | — | 24.0 |
| 18221 | CIDv0 base58btc Qm, value discarded CIDv0 base58btc Qm, value discarded | clean | — | — | 24.0 |
| 18222 | CIDv1 dag-pb codec prefix, value discarded CIDv1 dag-pb codec prefix, value discarded | clean | — | — | 24.0 |
| 18223 | CIDv1 raw codec prefix, value discarded CIDv1 raw codec prefix, value discarded | clean | — | — | 24.0 |
| 18224 | cid: URL shape, value discarded cid: URL shape, value discarded | clean | — | — | 24.0 |
| 18225 | CIDv0 Qm prefix, value discarded CIDv0 Qm prefix, value discarded | clean | — | — | 24.0 |
| 18226 | CIDv1 multibase prefix, value discarded CIDv1 multibase prefix, value discarded | clean | — | — | 24.0 |
| 18227 | IPv4 CIDR shape, value discarded IPv4 CIDR shape, value discarded | clean | — | — | 24.0 |
| 18228 | IPv6 CIDR shape, value discarded IPv6 CIDR shape, value discarded | clean | — | — | 24.0 |
| 18229 | CityHash128 hex length, input discarded CityHash128 hex length, input discarded | clean | — | — | 24.0 |
| 18230 | CityHash32 hex length, input discarded CityHash32 hex length, input discarded | clean | — | — | 24.0 |
| 18231 | CityHash64 hex length, input discarded CityHash64 hex length, input discarded | clean | — | — | 24.0 |
| 18232 | CityHash hex length, input discarded CityHash hex length, input discarded | clean | — | — | 24.0 |
| 18233 | Centiliters to liters, number discarded Centiliters to liters, number discarded | clean | — | — | 24.0 |
| 18234 | Clamp n into [min,max], numbers discarded Clamp n into [min,max], numbers discarded | clean | — | — | 24.0 |
| 18235 | Java class CAFEBABE, bytes discarded Java class CAFEBABE, bytes discarded | clean | — | — | 24.0 |
| 18236 | Centimeters to meters, number discarded Centimeters to meters, number discarded | clean | — | — | 24.0 |
| 18237 | cmd.exe caret-escape count, input discarded cmd.exe caret-escape count, input discarded | clean | — | — | 24.0 |
| 18238 | COBOL-CASE charset, value discarded COBOL-CASE charset, value discarded | clean | — | — | 24.0 |
| 18239 | Cross-Origin-Embedder-Policy token, value discarded Cross-Origin-Embedder-Policy token, value discarded | clean | — | — | 24.0 |
| 18240 | colon-separated token count, value discarded colon-separated token count, value discarded | clean | — | — | 24.0 |
| 18241 | COMB sequential UUID layout, value discarded COMB sequential UUID layout, value discarded | clean | — | — | 24.0 |
| 18242 | reverse COMB UUID layout, value discarded reverse COMB UUID layout, value discarded | clean | — | — | 24.0 |
| 18243 | comma-separated token count, value discarded comma-separated token count, value discarded | clean | — | — | 24.0 |
| 18244 | Compose service count, body discarded Compose service count, body discarded | clean | — | — | 24.0 |
| 18245 | composer.json name shape, body discarded composer.json name shape, body discarded | clean | — | — | 24.0 |
| 18246 | Connection token count, value discarded Connection token count, value discarded | clean | — | — | 24.0 |
| 18247 | Connection hop-by-hop count, value discarded Connection hop-by-hop count, value discarded | clean | — | — | 24.0 |
| 18248 | Content-hash filename shape, name discarded Content-hash filename shape, name discarded | clean | — | — | 24.0 |
| 18249 | Content-Location URL shape, value discarded Content-Location URL shape, value discarded | clean | — | — | 24.0 |
| 18250 | Content-MD5 base64 length, value discarded Content-MD5 base64 length, value 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.