We track 48412 servers from the official MCP Registry. 31745 are hosted (remote); we have health-checked 31473 so far. 280 use templated URLs that need user-specific values and can't be checked. Of those checked, 17151 passed a full MCP handshake, 8720 are up but need credentials, and 5602 failed or were unreachable (last check 2026-10-22T12:30:28.410Z UTC). How we check.
| Server | Users (30 d) | Handshake | Auth | Tools | Latency | Last checked (UTC) | Category |
|---|---|---|---|---|---|---|---|
| CP850 high-bit band, bytes discarded io.github.sadri-dridi/cp850-ok | 0 | Healthy | None | 31 | 36 ms | 2026-10-21T23:10:59.272Z | agents-and-memory |
| Compose service count, body discarded io.github.sadri-dridi/compose-ok | 0 | Healthy | None | 31 | 1119 ms | 2026-10-21T23:10:59.267Z | agents-and-memory |
| Cookie name charset, value discarded io.github.sadri-dridi/cookie-name-ok | 0 | Healthy | None | 31 | 1121 ms | 2026-10-21T23:10:59.267Z | agents-and-memory |
| Cross-Origin-Resource-Policy token, value discarded io.github.sadri-dridi/corp-ok | 0 | Healthy | None | 31 | 53 ms | 2026-10-21T23:10:59.267Z | agents-and-memory |
| Content-Location URL shape, value discarded io.github.sadri-dridi/content-loc | 0 | Healthy | None | 31 | 899 ms | 2026-10-21T23:10:59.260Z | agents-and-memory |
| Content-MD5 base64 length, value discarded io.github.sadri-dridi/content-md5 | 0 | Healthy | None | 31 | 641 ms | 2026-10-21T23:10:59.260Z | agents-and-memory |
| content-address hex length, value discarded io.github.sadri-dridi/contentid-ok | 0 | Healthy | None | 31 | 1119 ms | 2026-10-21T23:10:59.260Z | agents-and-memory |
| Contrast ratio for two hex colors io.github.sadri-dridi/contrast-ok | 0 | Healthy | None | 31 | 1142 ms | 2026-10-21T23:10:59.260Z | agents-and-memory |
| Cookie pair count, value discarded io.github.sadri-dridi/cookie-n | 0 | Healthy | None | 31 | 1113 ms | 2026-10-21T23:10:59.260Z | agents-and-memory |
| Cross-Origin-Opener-Policy token, value discarded io.github.sadri-dridi/coop-ok | 0 | Healthy | None | 31 | 1113 ms | 2026-10-21T23:10:59.260Z | agents-and-memory |
| Connection hop-by-hop count, value discarded io.github.sadri-dridi/connection-ok | 0 | Healthy | None | 31 | 1094 ms | 2026-10-21T23:10:59.258Z | agents-and-memory |
| Content-hash filename shape, name discarded io.github.sadri-dridi/content-hash-ok | 0 | Healthy | None | 31 | 1104 ms | 2026-10-21T23:10:59.258Z | agents-and-memory |
| Cookie name charset, value discarded io.github.sadri-dridi/cookie-token | 0 | Healthy | None | 31 | 924 ms | 2026-10-21T23:10:59.258Z | agents-and-memory |
| X-Correlation-Id charset, value discarded io.github.sadri-dridi/corr-id | 0 | Healthy | None | 31 | 1090 ms | 2026-10-21T23:10:59.258Z | agents-and-memory |
| Coptic year band io.github.sadri-dridi/coptic-ok | 0 | Healthy | None | 31 | 900 ms | 2026-10-21T23:10:59.233Z | agents-and-memory |
| Cords to cubic meters, number discarded io.github.sadri-dridi/cord-m3 | 0 | Healthy | None | 31 | 581 ms | 2026-10-21T23:10:59.027Z | agents-and-memory |
| Content-Type token shape io.github.sadri-dridi/content-type-ok | 0 | Healthy | None | 31 | 302 ms | 2026-10-21T23:10:59.011Z | agents-and-memory |
| content-id base58 length, value discarded io.github.sadri-dridi/contentid-b58 | 0 | Healthy | None | 31 | 299 ms | 2026-10-21T23:10:59.006Z | agents-and-memory |
| composer.json name shape, body discarded io.github.sadri-dridi/composer-ok | 0 | Healthy | None | 31 | 12 ms | 2026-10-21T23:10:58.116Z | agents-and-memory |
| COMB sequential UUID layout, value discarded io.github.sadri-dridi/comb-ok | 0 | Healthy | None | 31 | 710 ms | 2026-10-21T23:10:57.849Z | agents-and-memory |
| reverse COMB UUID layout, value discarded io.github.sadri-dridi/comb-rev | 0 | Healthy | None | 31 | 633 ms | 2026-10-21T23:10:57.724Z | agents-and-memory |
| Centimeters to inches io.github.sadri-dridi/cm-to-in | 0 | Healthy | None | 31 | 529 ms | 2026-10-21T23:10:57.613Z | agents-and-memory |
| colon-separated token count, value discarded io.github.sadri-dridi/colon-n | 0 | Healthy | None | 31 | 156 ms | 2026-10-21T23:10:57.611Z | agents-and-memory |
| SSE Accept hint io.github.sadri-dridi/compat-sse | 0 | Healthy | None | 31 | 248 ms | 2026-10-21T23:10:57.610Z | agents-and-memory |
| RGB tuple shape io.github.sadri-dridi/color-rgb-ok | 0 | Healthy | None | 31 | 286 ms | 2026-10-21T23:10:57.607Z | agents-and-memory |
| JSON Accept hint io.github.sadri-dridi/compat-json | 0 | Healthy | None | 31 | 317 ms | 2026-10-21T23:10:57.607Z | agents-and-memory |
| Centiliters to liters, number discarded io.github.sadri-dridi/cl-l | 0 | Healthy | None | 31 | 419 ms | 2026-10-21T23:10:57.604Z | agents-and-memory |
| CSS hex color shape io.github.sadri-dridi/color-hex-ok | 0 | Healthy | None | 31 | 346 ms | 2026-10-21T23:10:57.604Z | agents-and-memory |
| CityHash64 hex length, input discarded io.github.sadri-dridi/city64-len | 0 | Healthy | None | 31 | 420 ms | 2026-10-21T23:10:57.602Z | agents-and-memory |
| CIDv1 multibase prefix, value discarded io.github.sadri-dridi/cid-v1 | 0 | Healthy | None | 31 | 418 ms | 2026-10-21T23:10:57.600Z | agents-and-memory |
| Cross-Origin-Embedder-Policy token, value discarded io.github.sadri-dridi/coep-ok | 0 | Healthy | None | 31 | 584 ms | 2026-10-21T23:10:57.592Z | agents-and-memory |
| comma-separated token count, value discarded io.github.sadri-dridi/comma-n | 0 | Healthy | None | 31 | 579 ms | 2026-10-21T23:10:57.590Z | agents-and-memory |
| CityHash32 hex length, input discarded io.github.sadri-dridi/city32 | 0 | Healthy | None | 31 | 532 ms | 2026-10-21T23:10:57.589Z | agents-and-memory |
| COBOL-CASE charset, value discarded io.github.sadri-dridi/cobol-ok | 0 | Healthy | None | 31 | 28 ms | 2026-10-21T23:06:00.725Z | agents-and-memory |
| Clamp n into [min,max], numbers discarded io.github.sadri-dridi/clamp-ok | 0 | Healthy | None | 31 | 42 ms | 2026-10-21T23:06:00.723Z | agents-and-memory |
| cmd.exe caret-escape count, input discarded io.github.sadri-dridi/cmd-esc | 0 | Healthy | None | 31 | 42 ms | 2026-10-21T23:06:00.723Z | agents-and-memory |
| IPv4 CIDR shape, value discarded io.github.sadri-dridi/cidr4-ok | 0 | Healthy | None | 31 | 48 ms | 2026-10-21T23:06:00.721Z | agents-and-memory |
| CityHash hex length, input discarded io.github.sadri-dridi/cityhash-len | 0 | Healthy | None | 31 | 48 ms | 2026-10-21T23:06:00.719Z | agents-and-memory |
| CityHash128 hex length, input discarded io.github.sadri-dridi/city128 | 0 | Healthy | None | 31 | 38 ms | 2026-10-21T23:06:00.693Z | agents-and-memory |
| Java class CAFEBABE, bytes discarded io.github.sadri-dridi/class-ok | 0 | Healthy | None | 31 | 36 ms | 2026-10-21T23:06:00.666Z | agents-and-memory |
| Centimeters to meters, number discarded io.github.sadri-dridi/cm-m | 0 | Healthy | None | 31 | 50 ms | 2026-10-21T23:06:00.660Z | agents-and-memory |
| cid: URL shape, value discarded io.github.sadri-dridi/cid-url | 0 | Healthy | None | 31 | 77 ms | 2026-10-21T23:06:00.656Z | agents-and-memory |
| Chains to meters, number discarded io.github.sadri-dridi/chain-m | 0 | Healthy | None | 31 | 62 ms | 2026-10-21T23:06:00.620Z | agents-and-memory |
| Ciceros to millimeters, number discarded io.github.sadri-dridi/cicero-mm | 0 | Healthy | None | 31 | 66 ms | 2026-10-21T23:06:00.579Z | agents-and-memory |
| CIDv0 Qm prefix, value discarded io.github.sadri-dridi/cid-v0 | 0 | Healthy | None | 31 | 20 ms | 2026-10-21T23:06:00.380Z | agents-and-memory |
| UTC century number io.github.sadri-dridi/century | 0 | Healthy | None | 31 | 18 ms | 2026-10-21T23:06:00.324Z | agents-and-memory |
| ISO country VC io.github.sadri-dridi/cc-vc | 0 | Healthy | None | 31 | 12 ms | 2026-10-21T23:06:00.200Z | agents-and-memory |
| Cubic feet/min to m3/s, number discarded io.github.sadri-dridi/cfm-m3s | 0 | Healthy | None | 31 | 27 ms | 2026-10-21T23:06:00.200Z | agents-and-memory |
| IPv6 CIDR shape, value discarded io.github.sadri-dridi/cidr6-ok | 0 | Healthy | None | 31 | 19 ms | 2026-10-21T23:06:00.199Z | agents-and-memory |
| CIDv0 base58btc Qm, value discarded io.github.sadri-dridi/cid-base58 | 0 | Healthy | None | 31 | 50 ms | 2026-10-21T23:06:00.182Z | agents-and-memory |
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