We track 46365 servers from the official MCP Registry. 30096 are hosted (remote); we have health-checked 29827 so far. 273 use templated URLs that need user-specific values and can't be checked. Of those checked, 16486 passed a full MCP handshake, 8139 are up but need credentials, and 5202 failed or were unreachable (last check 2026-10-19T11:41:07.543Z UTC). How we check.
| Server | Users (30 d) | Handshake | Auth | Tools | Latency | Last checked (UTC) | Category |
|---|---|---|---|---|---|---|---|
| Imperial quarts to liters, number discarded io.github.sadri-dridi/quart-imp-l | 0 | Healthy | None | 31 | 32 ms | 2026-10-19T06:31:02.341Z | agents-and-memory |
| UTC start of the current quarter io.github.sadri-dridi/quarter-start | 0 | Healthy | None | 30 | 32 ms | 2026-10-19T06:31:02.341Z | agents-and-memory |
| Query pair count, URL discarded io.github.sadri-dridi/query-pair-count | 0 | Healthy | None | 31 | 33 ms | 2026-10-19T06:31:02.341Z | agents-and-memory |
| Quoted-printable length, input discarded io.github.sadri-dridi/quoted-len | 0 | Healthy | None | 31 | 31 ms | 2026-10-19T06:31:02.341Z | agents-and-memory |
| Quoted-printable length, text discarded io.github.sadri-dridi/quoted-printable-ok | 0 | Healthy | None | 31 | 29 ms | 2026-10-19T06:31:02.341Z | agents-and-memory |
| Q-encoding charset, input discarded io.github.sadri-dridi/qencode-ok | 0 | Healthy | None | 31 | 23 ms | 2026-10-19T06:31:02.337Z | agents-and-memory |
| US quarts to liters, number discarded io.github.sadri-dridi/qt-l | 0 | Healthy | None | 31 | 23 ms | 2026-10-19T06:31:02.337Z | agents-and-memory |
| 32 random hex chars io.github.sadri-dridi/random-hex32 | 0 | Healthy | None | 31 | 26 ms | 2026-10-19T06:31:02.337Z | agents-and-memory |
| Firebase PushID shape io.github.sadri-dridi/pushid-shape | 0 | Healthy | None | 31 | 23 ms | 2026-10-19T06:31:02.334Z | agents-and-memory |
| Quarter 1-4 band io.github.sadri-dridi/qtr-ok | 0 | Healthy | None | 31 | 26 ms | 2026-10-19T06:31:02.334Z | agents-and-memory |
| pkg:npm package-url shape, value discarded io.github.sadri-dridi/purl-npm | 0 | Healthy | None | 31 | 22 ms | 2026-10-19T06:31:02.333Z | developer-tools |
| Calendar quarter 1-4 band io.github.sadri-dridi/qtr-n | 0 | Healthy | None | 31 | 18 ms | 2026-10-19T06:31:02.318Z | productivity |
| Quoted-printable soft-break count, input discarded io.github.sadri-dridi/qp-ok | 0 | Healthy | None | 31 | 16 ms | 2026-10-19T06:31:02.210Z | agents-and-memory |
| Python unicode-escape count, input discarded io.github.sadri-dridi/py-uesc | 0 | Healthy | None | 31 | 723 ms | 2026-10-19T06:31:01.675Z | agents-and-memory |
| PowerShell backtick-escape count, input discarded io.github.sadri-dridi/pwsh-esc | 0 | Healthy | None | 31 | 724 ms | 2026-10-19T06:31:01.669Z | agents-and-memory |
| Python string escape count, input discarded io.github.sadri-dridi/py-esc-n | 0 | Healthy | None | 31 | 709 ms | 2026-10-19T06:31:01.669Z | agents-and-memory |
| UTC last day of the current quarter io.github.sadri-dridi/q-end | 0 | Healthy | None | 31 | 742 ms | 2026-10-19T06:31:01.669Z | agents-and-memory |
| UTC midpoint day of the current quarter io.github.sadri-dridi/q-mid | 0 | Healthy | None | 31 | 722 ms | 2026-10-19T06:31:01.669Z | agents-and-memory |
| UTC start of the current quarter io.github.sadri-dridi/q-start-utc | 0 | Healthy | None | 31 | 721 ms | 2026-10-19T06:31:01.669Z | agents-and-memory |
| UTC first day of the current quarter io.github.sadri-dridi/q-start2 | 0 | Healthy | None | 31 | 717 ms | 2026-10-19T06:31:01.669Z | agents-and-memory |
| pkg:gem package-url shape, value discarded io.github.sadri-dridi/purl-gem | 0 | Healthy | None | 31 | 709 ms | 2026-10-19T06:31:01.665Z | developer-tools |
| Firebase push-id entropy charset, value discarded io.github.sadri-dridi/pushid-rand | 0 | Healthy | None | 31 | 708 ms | 2026-10-19T06:31:01.665Z | agents-and-memory |
| Firebase push-id time prefix, value discarded io.github.sadri-dridi/pushid-ts | 0 | Healthy | None | 31 | 718 ms | 2026-10-19T06:31:01.665Z | agents-and-memory |
| punctuation charset, value discarded io.github.sadri-dridi/punct-ok | 0 | Healthy | None | 31 | 2284 ms | 2026-10-19T06:31:01.648Z | agents-and-memory |
| Punycode host shape, value discarded io.github.sadri-dridi/puny-host | 0 | Healthy | None | 31 | 3197 ms | 2026-10-19T06:31:01.648Z | agents-and-memory |
| Punycode ACE prefix, host discarded io.github.sadri-dridi/puny-ok | 0 | Healthy | None | 31 | 3149 ms | 2026-10-19T06:31:01.648Z | agents-and-memory |
| Firebase push-id charset, value discarded io.github.sadri-dridi/pushid-ok | 0 | Healthy | None | 31 | 2284 ms | 2026-10-19T06:31:01.648Z | agents-and-memory |
| Firebase push-id 20-char, value discarded io.github.sadri-dridi/pushid-ok2 | 0 | Healthy | None | 31 | 685 ms | 2026-10-19T06:31:01.648Z | agents-and-memory |
| puid charset, value discarded io.github.sadri-dridi/puid-ok | 0 | Healthy | None | 31 | 1901 ms | 2026-10-19T06:31:01.556Z | agents-and-memory |
| IDNA2008 A-label shape, host discarded io.github.sadri-dridi/puny2008-ok | 0 | Healthy | None | 31 | 1927 ms | 2026-10-19T06:31:00.399Z | agents-and-memory |
| IDNA2003 ACE prefix, host discarded io.github.sadri-dridi/puny2003-ok | 0 | Healthy | None | 31 | 1062 ms | 2026-10-19T06:31:00.397Z | agents-and-memory |
| Puppet class count, body discarded io.github.sadri-dridi/puppet-ok | 0 | Healthy | None | 31 | 1062 ms | 2026-10-19T06:31:00.397Z | agents-and-memory |
| PSI to bar, number discarded io.github.sadri-dridi/psi-bar | 0 | Healthy | None | 31 | 1317 ms | 2026-10-19T06:31:00.386Z | agents-and-memory |
| US pints to liters, number discarded io.github.sadri-dridi/pt-l | 0 | Healthy | None | 31 | 1886 ms | 2026-10-19T06:31:00.386Z | agents-and-memory |
| punctuation count, text discarded io.github.sadri-dridi/punct-n | 0 | Healthy | None | 31 | 342 ms | 2026-10-19T06:31:00.386Z | agents-and-memory |
| Punycode output length band, host discarded io.github.sadri-dridi/puny-len | 0 | Healthy | None | 31 | 1886 ms | 2026-10-19T06:31:00.386Z | agents-and-memory |
| Punycode length, input discarded io.github.sadri-dridi/punycode-len | 0 | Healthy | None | 31 | 1023 ms | 2026-10-19T06:31:00.386Z | agents-and-memory |
| Punycode host check io.github.sadri-dridi/punycode-ok | 0 | Healthy | None | 31 | 1029 ms | 2026-10-19T06:31:00.386Z | agents-and-memory |
| pkg:pypi package-url shape, value discarded io.github.sadri-dridi/purl-pypi | 0 | Healthy | None | 31 | 995 ms | 2026-10-19T06:31:00.386Z | developer-tools |
| Public suffix count io.github.sadri-dridi/public-suffix | 0 | Healthy | None | 31 | 1023 ms | 2026-10-19T06:31:00.335Z | agents-and-memory |
| PSI to kilopascals io.github.sadri-dridi/psi-to-kpa | 0 | Healthy | None | 31 | 29 ms | 2026-10-19T06:30:58.077Z | agents-and-memory |
| PSI to kilopascals, number discarded io.github.sadri-dridi/psi-kpa | 0 | Healthy | None | 31 | 18 ms | 2026-10-19T06:30:58.034Z | agents-and-memory |
| PS metric horsepower to watts, number discarded io.github.sadri-dridi/ps-w | 0 | Healthy | None | 31 | 15 ms | 2026-10-19T06:30:57.944Z | agents-and-memory |
| Integer power band, numbers discarded io.github.sadri-dridi/pow-ok | 0 | Healthy | None | 31 | 174 ms | 2026-10-19T06:30:57.899Z | agents-and-memory |
| Protobuf field-tag count, body discarded io.github.sadri-dridi/proto-ok | 0 | Healthy | None | 31 | 170 ms | 2026-10-19T06:30:57.899Z | agents-and-memory |
| Protobuf wire-type scan, body discarded io.github.sadri-dridi/protobuf-ok | 0 | Healthy | None | 31 | 49 ms | 2026-10-19T06:30:57.899Z | agents-and-memory |
| Proxy-Authenticate scheme token, value discarded io.github.sadri-dridi/proxy-auth | 0 | Healthy | None | 31 | 180 ms | 2026-10-19T06:30:57.899Z | agents-and-memory |
| Postgres URL Shape io.github.sadri-dridi/postgres-url-shape | 0 | Healthy | None | 31 | 198 ms | 2026-10-19T06:30:57.896Z | data-and-databases |
| protobuf3 message count, body discarded io.github.sadri-dridi/proto3-ok | 0 | Healthy | None | 31 | 285 ms | 2026-10-19T06:30:57.896Z | agents-and-memory |
| Product For Agents Index io.github.sadri-dridi/product-for-agents-index | 0 | Healthy | None | 31 | 237 ms | 2026-10-19T06:30:57.895Z | agents-and-memory |
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