We track 59133 servers from the official MCP Registry. 40018 are hosted (remote); we have health-checked 39686 so far. 343 use templated URLs that need user-specific values and can't be checked. Of those checked, 23739 passed a full MCP handshake, 11763 are up but need credentials, and 4184 failed or were unreachable (last check 2026-11-08T11:45:23.515Z UTC). How we check.
| Server | Users (30 d) | Handshake | Auth | Tools | Latency | Last checked (UTC) | Category |
|---|---|---|---|---|---|---|---|
| Quoted-printable length, input discarded io.github.sadri-dridi/quoted-len | 0 | Healthy | None | 31 | 26 ms | 2026-11-06T18:20:46.597Z | agents-and-memory |
| Calendar quarter 1-4 band io.github.sadri-dridi/qtr-n | 0 | Healthy | None | 31 | 20 ms | 2026-11-06T18:20:46.590Z | productivity |
| Punycode ACE prefix, host discarded io.github.sadri-dridi/puny-ok | 0 | Healthy | None | 31 | 20 ms | 2026-11-06T18:20:46.583Z | agents-and-memory |
| Quoted-printable soft-break count, input discarded io.github.sadri-dridi/qp-ok | 0 | Healthy | None | 31 | 22 ms | 2026-11-06T18:20:46.583Z | agents-and-memory |
| UTC first day of the current quarter io.github.sadri-dridi/q-start2 | 0 | Healthy | None | 31 | 17 ms | 2026-11-06T18:20:46.572Z | agents-and-memory |
| Firebase push-id 20-char, value discarded io.github.sadri-dridi/pushid-ok2 | 0 | Healthy | None | 31 | 12 ms | 2026-11-06T18:20:46.566Z | agents-and-memory |
| Product For Agents Index io.github.sadri-dridi/product-for-agents-index | 0 | Healthy | None | 31 | 15 ms | 2026-11-06T18:20:46.557Z | agents-and-memory |
| PowerShell backtick-escape count, input discarded io.github.sadri-dridi/pwsh-esc | 0 | Healthy | None | 31 | 20 ms | 2026-11-06T18:20:46.552Z | agents-and-memory |
| shotkit net.shotkit/mcp | 0 | Healthy | None | 2 | 1321 ms | 2026-11-06T18:20:46.315Z | browser-automation |
| puid charset, value discarded io.github.sadri-dridi/puid-ok | 0 | Healthy | None | 31 | 1226 ms | 2026-11-06T18:20:46.288Z | agents-and-memory |
| Punycode output length band, host discarded io.github.sadri-dridi/puny-len | 0 | Healthy | None | 31 | 1185 ms | 2026-11-06T18:20:46.258Z | agents-and-memory |
| Firebase push-id charset, value discarded io.github.sadri-dridi/pushid-ok | 0 | Healthy | None | 31 | 30 ms | 2026-11-06T18:20:46.184Z | agents-and-memory |
| Puppet class count, body discarded io.github.sadri-dridi/puppet-ok | 0 | Healthy | None | 31 | 23 ms | 2026-11-06T18:20:46.181Z | agents-and-memory |
| Python string escape count, input discarded io.github.sadri-dridi/py-esc-n | 0 | Healthy | None | 31 | 1072 ms | 2026-11-06T18:20:46.143Z | agents-and-memory |
| Punycode host shape, value discarded io.github.sadri-dridi/puny-host | 0 | Healthy | None | 31 | 938 ms | 2026-11-06T18:20:46.134Z | agents-and-memory |
| Port 25 io.github.sadri-dridi/port-25 | 0 | Healthy | None | 31 | 930 ms | 2026-11-06T18:20:46.130Z | agents-and-memory |
| Punycode host check io.github.sadri-dridi/punycode-ok | 0 | Healthy | None | 31 | 1178 ms | 2026-11-06T18:20:46.128Z | agents-and-memory |
| PSI to kilopascals io.github.sadri-dridi/psi-to-kpa | 0 | Healthy | None | 31 | 930 ms | 2026-11-06T18:20:46.127Z | agents-and-memory |
| punctuation count, text discarded io.github.sadri-dridi/punct-n | 0 | Healthy | None | 31 | 1009 ms | 2026-11-06T18:20:46.125Z | agents-and-memory |
| punctuation charset, value discarded io.github.sadri-dridi/punct-ok | 0 | Healthy | None | 31 | 905 ms | 2026-11-06T18:20:46.114Z | agents-and-memory |
| Firebase push-id entropy charset, value discarded io.github.sadri-dridi/pushid-rand | 0 | Healthy | None | 31 | 871 ms | 2026-11-06T18:20:46.110Z | agents-and-memory |
| IDNA2003 ACE prefix, host discarded io.github.sadri-dridi/puny2003-ok | 0 | Healthy | None | 31 | 877 ms | 2026-11-06T18:20:46.099Z | agents-and-memory |
| pkg:pypi package-url shape, value discarded io.github.sadri-dridi/purl-pypi | 0 | Healthy | None | 31 | 836 ms | 2026-11-06T18:20:45.901Z | developer-tools |
| Public suffix count io.github.sadri-dridi/public-suffix | 0 | Healthy | None | 31 | 45 ms | 2026-11-06T18:20:45.807Z | agents-and-memory |
| US pints to liters, number discarded io.github.sadri-dridi/pt-l | 0 | Healthy | None | 31 | 39 ms | 2026-11-06T18:20:44.949Z | agents-and-memory |
| Punycode length, input discarded io.github.sadri-dridi/punycode-len | 0 | Healthy | None | 31 | 36 ms | 2026-11-06T18:20:44.942Z | agents-and-memory |
| Protobuf wire-type scan, body discarded io.github.sadri-dridi/protobuf-ok | 0 | Healthy | None | 31 | 12 ms | 2026-11-06T18:20:44.590Z | agents-and-memory |
| PSI to bar, number discarded io.github.sadri-dridi/psi-bar | 0 | Healthy | None | 31 | 11 ms | 2026-11-06T18:20:44.590Z | agents-and-memory |
| PS metric horsepower to watts, number discarded io.github.sadri-dridi/ps-w | 0 | Healthy | None | 31 | 192 ms | 2026-11-06T18:20:44.575Z | agents-and-memory |
| Protobuf field-tag count, body discarded io.github.sadri-dridi/proto-ok | 0 | Healthy | None | 31 | 18 ms | 2026-11-06T18:20:44.573Z | agents-and-memory |
| Proxy-Authenticate scheme token, value discarded io.github.sadri-dridi/proxy-auth | 0 | Healthy | None | 31 | 15 ms | 2026-11-06T18:20:44.557Z | agents-and-memory |
| Port 993 io.github.sadri-dridi/port-993 | 0 | Healthy | None | 31 | 160 ms | 2026-11-06T18:20:44.542Z | agents-and-memory |
| Port 587 io.github.sadri-dridi/port-587 | 0 | Healthy | None | 31 | 15 ms | 2026-11-06T18:20:44.539Z | agents-and-memory |
| Integer power band, numbers discarded io.github.sadri-dridi/pow-ok | 0 | Healthy | None | 31 | 14 ms | 2026-11-06T18:20:44.538Z | agents-and-memory |
| PSI to kilopascals, number discarded io.github.sadri-dridi/psi-kpa | 0 | Healthy | None | 31 | 17 ms | 2026-11-06T18:20:44.521Z | agents-and-memory |
| protobuf3 message count, body discarded io.github.sadri-dridi/proto3-ok | 0 | Healthy | None | 31 | 15 ms | 2026-11-06T18:20:44.485Z | agents-and-memory |
| PDF URL Check io.github.sadri-dridi/pdf-url-ok | 0 | Healthy | None | 31 | 50 ms | 2026-11-06T18:20:44.454Z | productivity |
| Port 80 io.github.sadri-dridi/port-80 | 0 | Healthy | None | 31 | 62 ms | 2026-11-06T18:20:44.454Z | agents-and-memory |
| UK postcode shape, value discarded io.github.sadri-dridi/postcode-uk-ok | 0 | Healthy | None | 31 | 311 ms | 2026-11-06T18:20:44.453Z | agents-and-memory |
| Remnalis io.github.prestymdq/remnalis | 0 | Healthy | None | 6 | 957 ms | 2026-11-06T18:15:48.640Z | agents-and-memory |
| Port 995 io.github.sadri-dridi/port-995 | 0 | Healthy | None | 31 | 25 ms | 2026-11-06T18:15:47.648Z | agents-and-memory |
| Port 8080 io.github.sadri-dridi/port-8080 | 0 | Healthy | None | 31 | 13 ms | 2026-11-06T18:15:47.643Z | agents-and-memory |
| Postgres URL Shape io.github.sadri-dridi/postgres-url-shape | 0 | Healthy | None | 31 | 10 ms | 2026-11-06T18:15:47.643Z | data-and-databases |
| Priority u=/i= pair count, value discarded io.github.sadri-dridi/priority-ok | 0 | Healthy | None | 31 | 14 ms | 2026-11-06T18:15:47.636Z | agents-and-memory |
| TCP/UDP port range io.github.sadri-dridi/port-ok | 0 | Healthy | None | 31 | 12 ms | 2026-11-06T18:15:47.616Z | agents-and-memory |
| Prettier JSON/YAML key count, body discarded io.github.sadri-dridi/prettierrc-ok | 0 | Healthy | None | 31 | 15 ms | 2026-11-06T18:15:47.598Z | agents-and-memory |
| Imperial pints to liters, number discarded io.github.sadri-dridi/pint-imp-l | 0 | Healthy | None | 31 | 16 ms | 2026-11-06T18:15:47.593Z | agents-and-memory |
| Pragma token charset, value discarded io.github.sadri-dridi/pragma-ok | 0 | Healthy | None | 31 | 17 ms | 2026-11-06T18:15:47.524Z | agents-and-memory |
| Canadian postal code shape, value discarded io.github.sadri-dridi/postcode-ca-ok | 0 | Healthy | None | 30 | 14 ms | 2026-11-06T18:15:47.513Z | agents-and-memory |
| Maven POM coordinate shape, body discarded io.github.sadri-dridi/pom-ok | 0 | Healthy | None | 30 | 17 ms | 2026-11-06T18:15:47.491Z | agents-and-memory |
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