We track 47362 servers from the official MCP Registry. 30880 are hosted (remote); we have health-checked 30613 so far. 273 use templated URLs that need user-specific values and can't be checked. Of those checked, 16821 passed a full MCP handshake, 8431 are up but need credentials, and 5361 failed or were unreachable (last check 2026-10-21T02:01:07.332Z UTC). How we check.
| Server | Users (30 d) | Handshake | Auth | Tools | Latency | Last checked (UTC) | Category |
|---|---|---|---|---|---|---|---|
| Snowflake 63-bit digit shape, value discarded io.github.sadri-dridi/snowflake-ok | 0 | Healthy | None | 31 | 52 ms | 2026-10-20T15:15:59.826Z | data-and-databases |
| Snowflake id shape io.github.sadri-dridi/snowflake-shape | 0 | Healthy | None | 31 | 52 ms | 2026-10-20T15:15:59.826Z | data-and-databases |
| SOAP Envelope shape, markup discarded io.github.sadri-dridi/soap-ok | 0 | Healthy | None | 31 | 53 ms | 2026-10-20T15:15:59.826Z | agents-and-memory |
| Mean solar noon UTC-hour band io.github.sadri-dridi/solar-noon | 0 | Healthy | None | 31 | 43 ms | 2026-10-20T15:15:59.826Z | agents-and-memory |
| Sonyflake timestamp bits, value discarded io.github.sadri-dridi/sonyflake-ts | 0 | Healthy | None | 31 | 47 ms | 2026-10-20T15:15:59.826Z | agents-and-memory |
| UK sort-code hyphenated shape, value discarded io.github.sadri-dridi/sort-hyphen | 0 | Healthy | None | 31 | 50 ms | 2026-10-20T15:15:59.826Z | agents-and-memory |
| Smile binary header, bytes discarded io.github.sadri-dridi/smile-ok | 0 | Healthy | None | 31 | 45 ms | 2026-10-20T15:15:59.821Z | agents-and-memory |
| snake_case segment count, value discarded io.github.sadri-dridi/snake-ok2 | 0 | Healthy | None | 31 | 49 ms | 2026-10-20T15:15:59.821Z | agents-and-memory |
| snake_case segment count, value discarded io.github.sadri-dridi/snake-seg | 0 | Healthy | None | 31 | 46 ms | 2026-10-20T15:15:59.821Z | agents-and-memory |
| SNI hostname shape, value discarded io.github.sadri-dridi/sni-ok | 0 | Healthy | None | 31 | 50 ms | 2026-10-20T15:15:59.821Z | agents-and-memory |
| snake_case shape, text discarded io.github.sadri-dridi/snake-ok | 0 | Healthy | None | 31 | 44 ms | 2026-10-20T15:15:59.818Z | agents-and-memory |
| Snowflake timestamp bits, id discarded io.github.sadri-dridi/snowflake-ts | 0 | Healthy | None | 31 | 45 ms | 2026-10-20T15:15:59.818Z | data-and-databases |
| S/MIME PKCS7 fence, body discarded io.github.sadri-dridi/smime-ok | 0 | Healthy | None | 31 | 44 ms | 2026-10-20T15:15:59.817Z | agents-and-memory |
| Short-UUID charset, value discarded io.github.sadri-dridi/shortuuid-ok | 0 | Healthy | None | 31 | 1464 ms | 2026-10-20T15:15:59.546Z | agents-and-memory |
| Slack Webhook Shape io.github.sadri-dridi/slack-webhook-shape | 0 | Healthy | None | 31 | 1010 ms | 2026-10-20T15:15:59.237Z | communication |
| slash-separated charset, value discarded io.github.sadri-dridi/slash-ok | 0 | Healthy | None | 31 | 19 ms | 2026-10-20T15:15:58.986Z | agents-and-memory |
| snake_case segment count, value discarded io.github.sadri-dridi/snake-n | 0 | Healthy | None | 31 | 18 ms | 2026-10-20T15:15:58.968Z | agents-and-memory |
| SM3 hex length, input discarded io.github.sadri-dridi/sm3-len | 0 | Healthy | None | 31 | 766 ms | 2026-10-20T15:15:58.963Z | agents-and-memory |
| Slack channel name shape, value discarded io.github.sadri-dridi/slack-channel-ok | 0 | Healthy | None | 31 | 733 ms | 2026-10-20T15:15:58.948Z | communication |
| slash-separated token count, value discarded io.github.sadri-dridi/slash-n | 0 | Healthy | None | 31 | 498 ms | 2026-10-20T15:15:58.948Z | agents-and-memory |
| Slug character check io.github.sadri-dridi/slug-ok | 0 | Healthy | None | 31 | 527 ms | 2026-10-20T15:15:58.948Z | agents-and-memory |
| Sitemap URL count, body discarded io.github.sadri-dridi/sitemap-url-count | 0 | Healthy | None | 31 | 616 ms | 2026-10-20T15:15:58.942Z | agents-and-memory |
| Slugs to kilograms, number discarded io.github.sadri-dridi/slug-kg | 0 | Healthy | None | 31 | 632 ms | 2026-10-20T15:15:58.942Z | agents-and-memory |
| SM3 hex length, input discarded io.github.sadri-dridi/sm3-ok | 0 | Healthy | None | 31 | 623 ms | 2026-10-20T15:15:58.942Z | agents-and-memory |
| Smidgens to milliliters, number discarded io.github.sadri-dridi/smidgen-ml | 0 | Healthy | None | 31 | 488 ms | 2026-10-20T15:15:58.942Z | agents-and-memory |
| sidereal day fraction band io.github.sadri-dridi/sidereal-ok | 0 | Healthy | None | 31 | 37 ms | 2026-10-20T15:15:58.930Z | agents-and-memory |
| SipHash hex length, input discarded io.github.sadri-dridi/siphash-len | 0 | Healthy | None | 31 | 689 ms | 2026-10-20T15:15:58.930Z | agents-and-memory |
| short-uuid sid charset, value discarded io.github.sadri-dridi/sid-ok | 0 | Healthy | None | 31 | 702 ms | 2026-10-20T15:15:58.904Z | agents-and-memory |
| Approximate sidereal hour band io.github.sadri-dridi/sidereal-hr | 0 | Healthy | None | 31 | 692 ms | 2026-10-20T15:15:58.892Z | agents-and-memory |
| SipHash hex length, input discarded io.github.sadri-dridi/siphash-ok | 0 | Healthy | None | 31 | 490 ms | 2026-10-20T15:15:58.725Z | agents-and-memory |
| SipHash-2-4 hex length, input discarded io.github.sadri-dridi/sip64-len | 0 | Healthy | None | 31 | 594 ms | 2026-10-20T15:15:58.702Z | agents-and-memory |
| Shift_JIS lead-byte band, input discarded io.github.sadri-dridi/shiftjis-ok | 0 | Healthy | None | 31 | 50 ms | 2026-10-20T15:15:58.121Z | agents-and-memory |
| SipHash-4-8 hex length, input discarded io.github.sadri-dridi/sip128 | 0 | Healthy | None | 31 | 20 ms | 2026-10-20T15:15:58.115Z | agents-and-memory |
| shortid charset, value discarded io.github.sadri-dridi/shortid-ok | 0 | Healthy | None | 31 | 21 ms | 2026-10-20T15:15:57.739Z | agents-and-memory |
| Shots to milliliters, number discarded io.github.sadri-dridi/shot-ml | 0 | Healthy | None | 31 | 23 ms | 2026-10-20T15:15:57.634Z | agents-and-memory |
| shortuuid hex charset, value discarded io.github.sadri-dridi/shortuuid-hex | 0 | Healthy | None | 31 | 25 ms | 2026-10-20T15:15:57.632Z | agents-and-memory |
| POSIX shell quote shape, input discarded io.github.sadri-dridi/shell-esc | 0 | Healthy | None | 31 | 27 ms | 2026-10-20T15:15:57.618Z | developer-tools |
| SHA-256 hex length, input discarded io.github.sadri-dridi/sha256-len | 0 | Healthy | None | 31 | 311 ms | 2026-10-20T15:15:57.614Z | agents-and-memory |
| SHA-512 hex length, input discarded io.github.sadri-dridi/sha512-len | 0 | Healthy | None | 31 | 317 ms | 2026-10-20T15:15:57.597Z | agents-and-memory |
| Shebang interpreter token, line discarded io.github.sadri-dridi/shebang-ok | 0 | Healthy | None | 31 | 102 ms | 2026-10-20T15:15:57.574Z | agents-and-memory |
| SHAKE256 hex length band, input discarded io.github.sadri-dridi/shake256-ok | 0 | Healthy | None | 31 | 95 ms | 2026-10-20T15:15:57.566Z | agents-and-memory |
| monotonic sequence digit band, value discarded io.github.sadri-dridi/seq-ok | 0 | Healthy | None | 31 | 316 ms | 2026-10-20T15:15:57.558Z | agents-and-memory |
| SHAKE256 hex length, input discarded io.github.sadri-dridi/shake256 | 0 | Healthy | None | 31 | 84 ms | 2026-10-20T15:15:57.550Z | agents-and-memory |
| SHA-256, input discarded io.github.sadri-dridi/sha256-ok | 0 | Healthy | None | 31 | 140 ms | 2026-10-20T15:15:57.540Z | agents-and-memory |
| SHAKE128 hex length band, input discarded io.github.sadri-dridi/shake128-ok | 0 | Healthy | None | 31 | 192 ms | 2026-10-20T15:15:57.531Z | agents-and-memory |
| SHA-1 hex length, input discarded io.github.sadri-dridi/sha1-len | 0 | Healthy | None | 31 | 169 ms | 2026-10-20T15:15:57.526Z | agents-and-memory |
| SHA3-384 hex length, input discarded io.github.sadri-dridi/sha3-384 | 0 | Healthy | None | 31 | 355 ms | 2026-10-20T15:15:57.521Z | agents-and-memory |
| SHA-224 hex length, input discarded io.github.sadri-dridi/sha224-ok | 0 | Healthy | None | 31 | 352 ms | 2026-10-20T15:15:57.517Z | agents-and-memory |
| SHAKE128 hex length, input discarded io.github.sadri-dridi/shake128 | 0 | Healthy | None | 31 | 115 ms | 2026-10-20T15:11:02.417Z | agents-and-memory |
| SHA-512 hex length, input discarded io.github.sadri-dridi/sha512-ok | 0 | Healthy | None | 31 | 68 ms | 2026-10-20T15:11:02.324Z | agents-and-memory |
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