We track 50214 servers from the official MCP Registry. 33175 are hosted (remote); we have health-checked 32892 so far. 292 use templated URLs that need user-specific values and can't be checked. Of those checked, 18136 passed a full MCP handshake, 9259 are up but need credentials, and 5497 failed or were unreachable (last check 2026-10-25T23:10:20.227Z UTC). How we check.
| Server | Users (30 d) | Handshake | Auth | Tools | Latency | Last checked (UTC) | Category |
|---|---|---|---|---|---|---|---|
| SQL single-quote escape count, input discarded io.github.sadri-dridi/sql-esc | 0 | Healthy | None | 31 | 399 ms | 2026-10-24T21:55:09.880Z | data-and-databases |
| SOAP Envelope shape, markup discarded io.github.sadri-dridi/soap-ok | 0 | Healthy | None | 31 | 479 ms | 2026-10-24T21:55:09.877Z | agents-and-memory |
| snake_case segment count, value discarded io.github.sadri-dridi/snake-seg | 0 | Healthy | None | 31 | 518 ms | 2026-10-24T21:55:09.875Z | agents-and-memory |
| Snowflake sequence bits, id discarded io.github.sadri-dridi/snowflake-seq | 0 | Healthy | None | 31 | 520 ms | 2026-10-24T21:55:09.873Z | data-and-databases |
| Snowflake 63-bit digit shape, value discarded io.github.sadri-dridi/snowflake-ok | 0 | Healthy | None | 31 | 519 ms | 2026-10-24T21:55:09.866Z | data-and-databases |
| Sonyflake digit shape, value discarded io.github.sadri-dridi/sonyflake-ok | 0 | Healthy | None | 31 | 512 ms | 2026-10-24T21:55:09.857Z | agents-and-memory |
| SNI hostname shape, value discarded io.github.sadri-dridi/sni-ok | 0 | Healthy | None | 31 | 505 ms | 2026-10-24T21:55:09.779Z | agents-and-memory |
| snake_case shape, text discarded io.github.sadri-dridi/snake-ok | 0 | Healthy | None | 31 | 517 ms | 2026-10-24T21:55:09.712Z | agents-and-memory |
| snake_case segment count, value discarded io.github.sadri-dridi/snake-n | 0 | Healthy | None | 31 | 21 ms | 2026-10-24T21:55:09.148Z | agents-and-memory |
| Smile binary header, bytes discarded io.github.sadri-dridi/smile-ok | 0 | Healthy | None | 31 | 20 ms | 2026-10-24T21:55:08.908Z | agents-and-memory |
| Short-UUID charset, value discarded io.github.sadri-dridi/shortuuid-ok | 0 | Healthy | None | 31 | 1470 ms | 2026-10-24T21:55:08.701Z | agents-and-memory |
| Slack Webhook Shape io.github.sadri-dridi/slack-webhook-shape | 0 | Healthy | None | 31 | 1462 ms | 2026-10-24T21:55:08.701Z | communication |
| slash-separated token count, value discarded io.github.sadri-dridi/slash-n | 0 | Healthy | None | 31 | 1578 ms | 2026-10-24T21:55:08.701Z | agents-and-memory |
| S/MIME PKCS7 fence, body discarded io.github.sadri-dridi/smime-ok | 0 | Healthy | None | 31 | 1454 ms | 2026-10-24T21:55:08.701Z | agents-and-memory |
| Slack channel name shape, value discarded io.github.sadri-dridi/slack-channel-ok | 0 | Healthy | None | 31 | 1600 ms | 2026-10-24T21:55:08.695Z | communication |
| slash-separated charset, value discarded io.github.sadri-dridi/slash-ok | 0 | Healthy | None | 31 | 1528 ms | 2026-10-24T21:55:08.695Z | agents-and-memory |
| Slugs to kilograms, number discarded io.github.sadri-dridi/slug-kg | 0 | Healthy | None | 31 | 1636 ms | 2026-10-24T21:55:08.695Z | agents-and-memory |
| SM3 hex length, input discarded io.github.sadri-dridi/sm3-len | 0 | Healthy | None | 31 | 1598 ms | 2026-10-24T21:55:08.695Z | agents-and-memory |
| Sitemap URL count, body discarded io.github.sadri-dridi/sitemap-url-count | 0 | Healthy | None | 31 | 1801 ms | 2026-10-24T21:55:08.688Z | agents-and-memory |
| Slug character check io.github.sadri-dridi/slug-ok | 0 | Healthy | None | 31 | 1640 ms | 2026-10-24T21:55:08.688Z | agents-and-memory |
| SM3 hex length, input discarded io.github.sadri-dridi/sm3-ok | 0 | Healthy | None | 31 | 1685 ms | 2026-10-24T21:55:08.688Z | agents-and-memory |
| short-uuid sid charset, value discarded io.github.sadri-dridi/sid-ok | 0 | Healthy | None | 31 | 1958 ms | 2026-10-24T21:55:08.687Z | agents-and-memory |
| Smidgens to milliliters, number discarded io.github.sadri-dridi/smidgen-ml | 0 | Healthy | None | 31 | 1676 ms | 2026-10-24T21:55:08.685Z | agents-and-memory |
| SipHash hex length, input discarded io.github.sadri-dridi/siphash-len | 0 | Healthy | None | 31 | 1931 ms | 2026-10-24T21:55:08.682Z | agents-and-memory |
| Shift_JIS lead-byte band, input discarded io.github.sadri-dridi/shiftjis-ok | 0 | Healthy | None | 31 | 16 ms | 2026-10-24T21:50:11.586Z | agents-and-memory |
| sidereal day fraction band io.github.sadri-dridi/sidereal-ok | 0 | Healthy | None | 31 | 16 ms | 2026-10-24T21:50:11.586Z | agents-and-memory |
| Approximate sidereal hour band io.github.sadri-dridi/sidereal-hr | 0 | Healthy | None | 31 | 16 ms | 2026-10-24T21:50:11.581Z | agents-and-memory |
| SipHash hex length, input discarded io.github.sadri-dridi/siphash-ok | 0 | Healthy | None | 31 | 16 ms | 2026-10-24T21:50:11.581Z | agents-and-memory |
| SipHash-4-8 hex length, input discarded io.github.sadri-dridi/sip128 | 0 | Healthy | None | 31 | 16 ms | 2026-10-24T21:50:11.359Z | agents-and-memory |
| SipHash-2-4 hex length, input discarded io.github.sadri-dridi/sip64-len | 0 | Healthy | None | 31 | 12 ms | 2026-10-24T21:50:11.355Z | agents-and-memory |
| shortid charset, value discarded io.github.sadri-dridi/shortid-ok | 0 | Healthy | None | 31 | 19 ms | 2026-10-24T21:50:11.265Z | agents-and-memory |
| Shots to milliliters, number discarded io.github.sadri-dridi/shot-ml | 0 | Healthy | None | 31 | 18 ms | 2026-10-24T21:50:11.255Z | agents-and-memory |
| shortuuid hex charset, value discarded io.github.sadri-dridi/shortuuid-hex | 0 | Healthy | None | 31 | 16 ms | 2026-10-24T21:50:11.242Z | agents-and-memory |
| SHA-384 hex length, input discarded io.github.sadri-dridi/sha384-ok | 0 | Healthy | None | 31 | 769 ms | 2026-10-24T21:50:11.140Z | agents-and-memory |
| SHAKE128 hex length band, input discarded io.github.sadri-dridi/shake128-ok | 0 | Healthy | None | 31 | 691 ms | 2026-10-24T21:50:11.140Z | agents-and-memory |
| Whether UTC second can be 60 io.github.sadri-dridi/sec-leap | 0 | Healthy | None | 31 | 41 ms | 2026-10-24T21:50:11.119Z | agents-and-memory |
| SHA-224 hex length, input discarded io.github.sadri-dridi/sha224-len | 0 | Healthy | None | 31 | 34 ms | 2026-10-24T21:50:11.084Z | agents-and-memory |
| POSIX shell quote shape, input discarded io.github.sadri-dridi/shell-esc | 0 | Healthy | None | 31 | 41 ms | 2026-10-24T21:50:11.084Z | developer-tools |
| SHA-256 hex length, input discarded io.github.sadri-dridi/sha256-len | 0 | Healthy | None | 31 | 33 ms | 2026-10-24T21:50:11.080Z | agents-and-memory |
| SHA-512 hex length, input discarded io.github.sadri-dridi/sha512-len | 0 | Healthy | None | 31 | 32 ms | 2026-10-24T21:50:11.080Z | agents-and-memory |
| Shebang interpreter token, line discarded io.github.sadri-dridi/shebang-ok | 0 | Healthy | None | 31 | 30 ms | 2026-10-24T21:50:11.080Z | agents-and-memory |
| SHA-224 hex length, input discarded io.github.sadri-dridi/sha224-ok | 0 | Healthy | None | 31 | 26 ms | 2026-10-24T21:50:11.079Z | agents-and-memory |
| S-expression paren count, body discarded io.github.sadri-dridi/sexp-ok | 0 | Healthy | None | 31 | 24 ms | 2026-10-24T21:50:11.076Z | agents-and-memory |
| SHA-512 hex length, input discarded io.github.sadri-dridi/sha512-ok | 0 | Healthy | None | 31 | 23 ms | 2026-10-24T21:50:11.074Z | agents-and-memory |
| Sentry DSN Shape io.github.sadri-dridi/sentry-dsn-shape | 0 | Healthy | None | 31 | 665 ms | 2026-10-24T21:50:10.918Z | developer-tools |
| SHA-384 hex length, input discarded io.github.sadri-dridi/sha384-len | 0 | Healthy | None | 31 | 736 ms | 2026-10-24T21:50:10.917Z | agents-and-memory |
| SHA-256, input discarded io.github.sadri-dridi/sha256-ok | 0 | Healthy | None | 31 | 672 ms | 2026-10-24T21:50:10.916Z | agents-and-memory |
| SHA-1 hex length, input discarded io.github.sadri-dridi/sha1-len | 0 | Healthy | None | 31 | 947 ms | 2026-10-24T21:50:10.808Z | agents-and-memory |
| SHACL NodeShape count, body discarded io.github.sadri-dridi/shacl-ok | 0 | Healthy | None | 31 | 937 ms | 2026-10-24T21:50:10.800Z | agents-and-memory |
| SHAKE128 hex length, input discarded io.github.sadri-dridi/shake128 | 0 | Healthy | None | 31 | 695 ms | 2026-10-24T21:50:10.775Z | agents-and-memory |
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