Which MCP servers actually work?

We track 51099 servers from the official MCP Registry. 33811 are hosted (remote); we have health-checked 33528 so far. 293 use templated URLs that need user-specific values and can't be checked. Of those checked, 20300 passed a full MCP handshake, 9502 are up but need credentials, and 3726 failed or were unreachable (last check 2026-10-27T11:15:25.085Z UTC). How we check.

ServerUsers (30 d)HandshakeAuthToolsLatencyLast checked (UTC)Category
Uniprot
io.github.pipeworx-io/uniprot		0HealthyNone48103 ms2026-10-26T06:45:12.375Zagents-and-memory
Url
io.github.pipeworx-io/url		0HealthyNone4568 ms2026-10-26T06:45:12.373Zagents-and-memory
Us Auctions
io.github.pipeworx-io/us-auctions		0HealthyNone4854 ms2026-10-26T06:45:12.361Zagents-and-memory
Urlhaus
io.github.pipeworx-io/urlhaus		0HealthyNone4654 ms2026-10-26T06:45:12.331Zsecurity
Unsplash
io.github.pipeworx-io/unsplash		0HealthyNone5753 ms2026-10-26T06:45:12.329Zagents-and-memory
Un Sdg
io.github.pipeworx-io/un-sdg		0HealthyNone4760 ms2026-10-26T06:45:12.323Zagents-and-memory
Unwrangle
io.github.pipeworx-io/unwrangle		0HealthyNone4548 ms2026-10-26T06:45:12.317Zecommerce
Unicode
io.github.pipeworx-io/unicode		0HealthyNone4552 ms2026-10-26T06:45:12.218Zagents-and-memory
Unhcr
io.github.pipeworx-io/unhcr		0HealthyNone4647 ms2026-10-26T06:45:12.215Zagents-and-memory
Unpaywall
io.github.pipeworx-io/unpaywall		0HealthyNone4355 ms2026-10-26T06:45:12.214Zagents-and-memory
Uk Parliament
io.github.pipeworx-io/uk-parliament		0HealthyNone49134 ms2026-10-26T06:45:12.065Zagents-and-memory
Ukraine Public Spending
io.github.pipeworx-io/ukraine-public-spending		0HealthyNone45134 ms2026-10-26T06:45:12.064Zfinance-and-payments
Umls
io.github.pipeworx-io/umls		0HealthyNone46134 ms2026-10-26T06:45:12.062Zagents-and-memory
Unicef
io.github.pipeworx-io/unicef		0HealthyNone45119 ms2026-10-26T06:45:12.060Zhealth-and-science
Ukri Gtr
io.github.pipeworx-io/ukri-gtr		0HealthyNone47127 ms2026-10-26T06:45:12.050Zagents-and-memory
Universities
io.github.pipeworx-io/universities		0HealthyNone4362 ms2026-10-26T06:45:12.013Zsearch-and-web
Ulid
io.github.pipeworx-io/ulid		0HealthyNone4458 ms2026-10-26T06:45:12.006Zagents-and-memory
Unesco Uis
io.github.pipeworx-io/unesco-uis		0HealthyNone4578 ms2026-10-26T06:45:12.001Zagents-and-memory
Uk Trade Tariff
io.github.pipeworx-io/uk-trade-tariff		0HealthyNone4669 ms2026-10-26T06:45:12.000Zagents-and-memory
Uk Tribunals
io.github.pipeworx-io/uk-tribunals		0HealthyNone4572 ms2026-10-26T06:45:11.996Zagents-and-memory
Uk Flood Monitoring
io.github.pipeworx-io/uk-flood-monitoring		0HealthyNone4667 ms2026-10-26T06:45:11.994Zcloud-and-infra
Ukhsa
io.github.pipeworx-io/ukhsa		0HealthyNone4564 ms2026-10-26T06:45:11.802Zagents-and-memory
Ukpolice
io.github.pipeworx-io/ukpolice		0HealthyNone4561 ms2026-10-26T06:45:11.799Zagents-and-memory
Uk Planning Data
io.github.pipeworx-io/uk-planning-data		0HealthyNone4664 ms2026-10-26T06:45:11.796Zagents-and-memory
Uk Ons
io.github.pipeworx-io/uk-ons		0HealthyNone4869 ms2026-10-26T06:45:11.788Zagents-and-memory
Uk Food Hygiene
io.github.pipeworx-io/uk-food-hygiene		0HealthyNone4447 ms2026-10-26T06:45:11.707Zagents-and-memory
Uk Gazette
io.github.pipeworx-io/uk-gazette		0HealthyNone4744 ms2026-10-26T06:45:11.702Zagents-and-memory
Uk Caselaw
io.github.pipeworx-io/uk-caselaw		0HealthyNone4540 ms2026-10-26T06:45:11.682Zagents-and-memory
Uk Charity Commission
io.github.pipeworx-io/uk-charity-commission		0HealthyNone462048 ms2026-10-26T06:45:11.622Zagents-and-memory
Ucdp
io.github.pipeworx-io/ucdp		0HealthyNone472323 ms2026-10-26T06:45:11.616Zagents-and-memory
Uk Contracts
io.github.pipeworx-io/uk-contracts		0HealthyNone472350 ms2026-10-26T06:45:11.598Zagents-and-memory
Udbud Dk
io.github.pipeworx-io/udbud-dk		0HealthyNone452325 ms2026-10-26T06:45:11.595Zsearch-and-web
Tx Medical Exclusions
io.github.pipeworx-io/tx-medical-exclusions		0HealthyNone442413 ms2026-10-26T06:45:11.592Zhealth-and-science
Tx Dmv
io.github.pipeworx-io/tx-dmv		0HealthyNone432411 ms2026-10-26T06:45:11.590Zagents-and-memory
Ucc Liens
io.github.pipeworx-io/ucc-liens		0HealthyNone442358 ms2026-10-26T06:45:11.589Zagents-and-memory
Ucsc Genome
io.github.pipeworx-io/ucsc-genome		0HealthyNone462427 ms2026-10-26T06:45:11.585Zagents-and-memory
Ttab
io.github.pipeworx-io/ttab		0HealthyNone452357 ms2026-10-26T06:45:11.527Zagents-and-memory
Tx Procurement
io.github.pipeworx-io/tx-procurement		0HealthyNone442391 ms2026-10-26T06:45:11.515Zagents-and-memory
Tvmaze
io.github.pipeworx-io/tvmaze		0HealthyNone472415 ms2026-10-26T06:45:11.513Zagents-and-memory
Twilio
io.github.pipeworx-io/twilio		0HealthyNone472399 ms2026-10-26T06:45:11.509Zcommunication
Symmap
io.github.pipeworx-io/symmap		0HealthyNone49167 ms2026-10-26T06:45:11.420Zhealth-and-science
Twitch
io.github.pipeworx-io/twitch		0HealthyNone46426 ms2026-10-26T06:45:11.410Zagents-and-memory
Trove
io.github.pipeworx-io/trove		0HealthyNone4476 ms2026-10-26T06:40:13.986Zagents-and-memory
Twelvedata
io.github.pipeworx-io/twelvedata		0HealthyNone5960 ms2026-10-26T06:40:13.983Zfinance-and-payments
Trefle
io.github.pipeworx-io/trefle		0HealthyNone4783 ms2026-10-26T06:40:13.974Zhealth-and-science
Tweedekamer Nl
io.github.pipeworx-io/tweedekamer-nl		0HealthyNone45103 ms2026-10-26T06:40:13.971Zagents-and-memory
Trivia
io.github.pipeworx-io/trivia		0HealthyNone4581 ms2026-10-26T06:40:13.907Zagents-and-memory
Trimet
io.github.pipeworx-io/trimet		0HealthyNone4690 ms2026-10-26T06:40:13.904Zsearch-and-web
Travel Feeds
io.github.pipeworx-io/travel-feeds		0HealthyNone4593 ms2026-10-26T06:40:13.900Zlocation-and-travel
Travelpayouts
io.github.pipeworx-io/travelpayouts		0HealthyNone4673 ms2026-10-26T06:40:13.852Zagents-and-memory

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