We track 46365 servers from the official MCP Registry. 30096 are hosted (remote); we have health-checked 29828 so far. 272 use templated URLs that need user-specific values and can't be checked. Of those checked, 16453 passed a full MCP handshake, 8139 are up but need credentials, and 5236 failed or were unreachable (last check 2026-10-19T13:36:12.015Z UTC). How we check.
| Server | Users (30 d) | Handshake | Auth | Tools | Latency | Last checked (UTC) | Category |
|---|---|---|---|---|---|---|---|
| US ZIP+4 shape, value discarded io.github.sadri-dridi/zip-us-ok | 0 | Healthy | None | 31 | 42 ms | 2026-10-19T07:30:58.433Z | agents-and-memory |
| ZIP magic-byte check, file discarded io.github.sadri-dridi/zip-magic | 0 | Healthy | None | 31 | 43 ms | 2026-10-19T07:30:58.431Z | agents-and-memory |
| yEnc header shape, input discarded io.github.sadri-dridi/yenc-ok | 0 | Healthy | None | 31 | 64 ms | 2026-10-19T07:30:58.428Z | agents-and-memory |
| Z85 charset, input discarded io.github.sadri-dridi/z85-ok | 0 | Healthy | None | 31 | 104 ms | 2026-10-19T07:30:58.423Z | agents-and-memory |
| YouTube ID Shape io.github.sadri-dridi/youtube-id-shape | 0 | Healthy | None | 31 | 166 ms | 2026-10-19T07:30:58.420Z | marketing-and-seo |
| Common zone count io.github.sadri-dridi/zone-count | 0 | Healthy | None | 31 | 242 ms | 2026-10-19T07:30:58.418Z | agents-and-memory |
| YAML top-level key count, values discarded io.github.sadri-dridi/yaml-keys-ok | 0 | Healthy | None | 31 | 303 ms | 2026-10-19T07:30:58.409Z | agents-and-memory |
| Yards to meters io.github.sadri-dridi/yd-to-m | 0 | Healthy | None | 31 | 373 ms | 2026-10-19T07:30:58.407Z | agents-and-memory |
| z-base-32 charset, input discarded io.github.sadri-dridi/zbase32-ok | 0 | Healthy | None | 31 | 263 ms | 2026-10-19T07:30:58.405Z | agents-and-memory |
| UTC year io.github.sadri-dridi/year-utc | 0 | Healthy | None | 31 | 274 ms | 2026-10-19T07:30:58.401Z | agents-and-memory |
| Days in current UTC year io.github.sadri-dridi/year-len | 0 | Healthy | None | 31 | 274 ms | 2026-10-19T07:30:58.398Z | agents-and-memory |
| YAML document-start count, body discarded io.github.sadri-dridi/yaml-doc-ok | 0 | Healthy | None | 31 | 48 ms | 2026-10-19T07:30:58.358Z | productivity |
| Yards to meters, number discarded io.github.sadri-dridi/yd-m | 0 | Healthy | None | 31 | 23 ms | 2026-10-19T07:30:57.904Z | agents-and-memory |
| YAML validity, body discarded io.github.sadri-dridi/yaml-ok | 0 | Healthy | None | 31 | 16 ms | 2026-10-19T07:30:57.887Z | agents-and-memory |
| xxHash hex length, input discarded io.github.sadri-dridi/xxhash-len | 0 | Healthy | None | 31 | 24 ms | 2026-10-19T07:30:57.875Z | agents-and-memory |
| YAML key count, body discarded io.github.sadri-dridi/yaml-key-count | 0 | Healthy | None | 31 | 26 ms | 2026-10-19T07:30:57.864Z | agents-and-memory |
| Yacc rule count, body discarded io.github.sadri-dridi/yacc-ok | 0 | Healthy | None | 31 | 25 ms | 2026-10-19T07:30:57.862Z | agents-and-memory |
| YAML anchor count, body discarded io.github.sadri-dridi/yaml-anchor-ok | 0 | Healthy | None | 31 | 16 ms | 2026-10-19T07:30:57.856Z | agents-and-memory |
| XXH32 hex length, input discarded io.github.sadri-dridi/xxh32-len | 0 | Healthy | None | 31 | 20 ms | 2026-10-19T07:30:57.851Z | agents-and-memory |
| XXH3 hex length, input discarded io.github.sadri-dridi/xxh3-len | 0 | Healthy | None | 31 | 14 ms | 2026-10-19T07:30:57.840Z | agents-and-memory |
| UTC start of the current year io.github.sadri-dridi/y-start | 0 | Healthy | None | 31 | 23 ms | 2026-10-19T07:30:57.806Z | agents-and-memory |
| xxHash hex, input discarded io.github.sadri-dridi/xxhash-ok | 0 | Healthy | None | 31 | 22 ms | 2026-10-19T07:30:57.805Z | agents-and-memory |
| XXH64 hex length, input discarded io.github.sadri-dridi/xxh64-len | 0 | Healthy | None | 31 | 17 ms | 2026-10-19T07:30:57.801Z | agents-and-memory |
| XXH3-64 hex length, input discarded io.github.sadri-dridi/xxh3-64 | 0 | Healthy | None | 31 | 17 ms | 2026-10-19T07:30:57.747Z | agents-and-memory |
| UTC end of the current year io.github.sadri-dridi/y-end | 0 | Healthy | None | 31 | 16 ms | 2026-10-19T07:30:57.746Z | agents-and-memory |
| XXH3-128 hex length, input discarded io.github.sadri-dridi/xxh3-128 | 0 | Healthy | None | 31 | 24 ms | 2026-10-19T07:30:57.728Z | agents-and-memory |
| XML Schema element count, markup discarded io.github.sadri-dridi/xsd-ok | 0 | Healthy | None | 31 | 21 ms | 2026-10-19T07:30:57.725Z | agents-and-memory |
| XML tag count, body discarded io.github.sadri-dridi/xml-tag-count | 0 | Healthy | None | 31 | 23 ms | 2026-10-19T07:30:57.701Z | agents-and-memory |
| XOR-fold length, input discarded io.github.sadri-dridi/xor-len | 0 | Healthy | None | 31 | 19 ms | 2026-10-19T07:30:57.696Z | agents-and-memory |
| Xxencode charset, input discarded io.github.sadri-dridi/xx-len | 0 | Healthy | None | 31 | 20 ms | 2026-10-19T07:30:57.626Z | agents-and-memory |
| XID timestamp prefix, value discarded io.github.sadri-dridi/xid-ts | 0 | Healthy | None | 31 | 324 ms | 2026-10-19T07:30:57.595Z | agents-and-memory |
| XML numeric-entity count, input discarded io.github.sadri-dridi/xml-numesc | 0 | Healthy | None | 31 | 22 ms | 2026-10-19T07:30:57.595Z | agents-and-memory |
| XML well-formed check, body discarded io.github.sadri-dridi/xml-ok | 0 | Healthy | None | 31 | 276 ms | 2026-10-19T07:30:57.594Z | agents-and-memory |
| XXH128 hex length, input discarded io.github.sadri-dridi/xxh128-len | 0 | Healthy | None | 31 | 26 ms | 2026-10-19T07:30:57.589Z | agents-and-memory |
| XML namespace count, markup discarded io.github.sadri-dridi/xml-ns-ok | 0 | Healthy | None | 31 | 331 ms | 2026-10-19T07:30:57.572Z | agents-and-memory |
| xxencode begin line, input discarded io.github.sadri-dridi/xxdecode-ok | 0 | Healthy | None | 31 | 123 ms | 2026-10-19T07:30:57.561Z | agents-and-memory |
| X-Forwarded-Proto http/https, value discarded io.github.sadri-dridi/xfp-ok | 0 | Healthy | None | 31 | 156 ms | 2026-10-19T07:30:57.560Z | agents-and-memory |
| XML declaration shape, markup discarded io.github.sadri-dridi/xml-decl-ok | 0 | Healthy | None | 31 | 407 ms | 2026-10-19T07:30:57.556Z | agents-and-memory |
| XID 20-char shape, value discarded io.github.sadri-dridi/xid-ok | 0 | Healthy | None | 31 | 404 ms | 2026-10-19T07:30:57.553Z | agents-and-memory |
| whitespace run count, text discarded io.github.sadri-dridi/ws-ok | 0 | Healthy | None | 31 | 19 ms | 2026-10-19T07:26:00.936Z | agents-and-memory |
| WSDL operation count, body discarded io.github.sadri-dridi/wsdl-ok | 0 | Healthy | None | 31 | 23 ms | 2026-10-19T07:26:00.679Z | agents-and-memory |
| X-Forwarded-Proto https token, value discarded io.github.sadri-dridi/xfp-https | 0 | Healthy | None | 31 | 41 ms | 2026-10-19T07:26:00.494Z | agents-and-memory |
| XID Base32 charset, value discarded io.github.sadri-dridi/xid-b32 | 0 | Healthy | None | 31 | 37 ms | 2026-10-19T07:26:00.494Z | agents-and-memory |
| XID 24-hex shape, value discarded io.github.sadri-dridi/xid-hex | 0 | Healthy | None | 31 | 38 ms | 2026-10-19T07:26:00.494Z | agents-and-memory |
| XID shape check io.github.sadri-dridi/xid-shape | 0 | Healthy | None | 31 | 30 ms | 2026-10-19T07:26:00.494Z | agents-and-memory |
| Week-of-year 1-53 band io.github.sadri-dridi/woy-ok | 0 | Healthy | None | 31 | 29 ms | 2026-10-19T07:26:00.490Z | agents-and-memory |
| whitespace run count, text discarded io.github.sadri-dridi/ws-n | 0 | Healthy | None | 31 | 36 ms | 2026-10-19T07:26:00.490Z | agents-and-memory |
| X-Forwarded-For comma count, value discarded io.github.sadri-dridi/xff-count | 0 | Healthy | None | 31 | 35 ms | 2026-10-19T07:26:00.490Z | agents-and-memory |
| wyhash hex length, input discarded io.github.sadri-dridi/wyhash-ok | 0 | Healthy | None | 31 | 29 ms | 2026-10-19T07:26:00.488Z | agents-and-memory |
| WSDL 2.0 interface count, markup discarded io.github.sadri-dridi/wsdl2-ok | 0 | Healthy | None | 31 | 28 ms | 2026-10-19T07:26:00.486Z | agents-and-memory |
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