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, 20286 passed a full MCP handshake, 9502 are up but need credentials, and 3740 failed or were unreachable (last check 2026-10-27T06:25:21.376Z UTC). How we check.

ServerUsers (30 d)HandshakeAuthToolsLatencyLast checked (UTC)Category
Arcgis Maricopa
io.github.pipeworx-io/arcgis-maricopa		0HealthyNone4561 ms2026-10-26T04:45:10.635Zagents-and-memory
Arcgis Lincolnne
io.github.pipeworx-io/arcgis-lincolnne		0HealthyNone4558 ms2026-10-26T04:45:10.630Zagents-and-memory
Arcgis Lubbock
io.github.pipeworx-io/arcgis-lubbock		0HealthyNone4553 ms2026-10-26T04:45:10.628Zagents-and-memory
Arcgis Lorain
io.github.pipeworx-io/arcgis-lorain		0HealthyNone4575 ms2026-10-26T04:45:10.584Zagents-and-memory
Arcgis Leecounty
io.github.pipeworx-io/arcgis-leecounty		0HealthyNone4567 ms2026-10-26T04:45:10.555Zagents-and-memory
Arcgis Lancaster
io.github.pipeworx-io/arcgis-lancaster		0HealthyNone4586 ms2026-10-26T04:45:10.552Zagents-and-memory
Arcgis Linncounty
io.github.pipeworx-io/arcgis-linncounty		0HealthyNone4561 ms2026-10-26T04:45:10.545Zagents-and-memory
Arcgis Lincolncountync
io.github.pipeworx-io/arcgis-lincolncountync		0HealthyNone4550 ms2026-10-26T04:45:10.529Zagents-and-memory
Arcgis Lakecountyil
io.github.pipeworx-io/arcgis-lakecountyil		0HealthyNone4550 ms2026-10-26T04:45:10.527Zagents-and-memory
Arcgis Lacounty
io.github.pipeworx-io/arcgis-lacounty		0HealthyNone4556 ms2026-10-26T04:45:10.504Zagents-and-memory
Arcgis Lakeland
io.github.pipeworx-io/arcgis-lakeland		0HealthyNone4550 ms2026-10-26T04:45:10.454Zagents-and-memory
Arcgis Kinston
io.github.pipeworx-io/arcgis-kinston		0HealthyNone4551 ms2026-10-26T04:45:10.452Zagents-and-memory
Arcgis Johnsoncity
io.github.pipeworx-io/arcgis-johnsoncity		0HealthyNone4554 ms2026-10-26T04:45:10.402Zagents-and-memory
Arcgis Kansas
io.github.pipeworx-io/arcgis-kansas		0HealthyNone4571 ms2026-10-26T04:45:10.359Zagents-and-memory
Arcgis Kingston
io.github.pipeworx-io/arcgis-kingston		0HealthyNone4565 ms2026-10-26T04:45:10.354Zagents-and-memory
Arcgis Kamloops
io.github.pipeworx-io/arcgis-kamloops		0HealthyNone4557 ms2026-10-26T04:45:10.351Zagents-and-memory
Arcgis Irvine
io.github.pipeworx-io/arcgis-irvine		0HealthyNone4545 ms2026-10-26T04:45:10.338Zagents-and-memory
Arcgis Hub
io.github.pipeworx-io/arcgis-hub		0HealthyNone45102 ms2026-10-26T04:45:10.273Zagents-and-memory
Arcgis Houston
io.github.pipeworx-io/arcgis-houston		0HealthyNone45105 ms2026-10-26T04:45:10.269Zagents-and-memory
Arcgis Glynncounty
io.github.pipeworx-io/arcgis-glynncounty		0HealthyNone45106 ms2026-10-26T04:45:10.258Zagents-and-memory
Arcgis Greenwood
io.github.pipeworx-io/arcgis-greenwood		0HealthyNone45104 ms2026-10-26T04:45:10.245Zagents-and-memory
Arcgis Henderson
io.github.pipeworx-io/arcgis-henderson		0HealthyNone4574 ms2026-10-26T04:45:10.240Zagents-and-memory
Arcgis Indianriver
io.github.pipeworx-io/arcgis-indianriver		0HealthyNone4557 ms2026-10-26T04:45:10.237Zagents-and-memory
Arcgis Harrisburg
io.github.pipeworx-io/arcgis-harrisburg		0HealthyNone4575 ms2026-10-26T04:45:10.227Zagents-and-memory
Arcgis Honolulu
io.github.pipeworx-io/arcgis-honolulu		0HealthyNone4575 ms2026-10-26T04:45:10.197Zagents-and-memory
Arcgis Fontana
io.github.pipeworx-io/arcgis-fontana		0HealthyNone4562 ms2026-10-26T04:45:10.192Zagents-and-memory
Arcgis Glasgow
io.github.pipeworx-io/arcgis-glasgow		0HealthyNone4540 ms2026-10-26T04:45:10.117Zagents-and-memory
Arcgis Flagstaff
io.github.pipeworx-io/arcgis-flagstaff		0HealthyNone4543 ms2026-10-26T04:45:10.072Zagents-and-memory
Arcgis Grandchute
io.github.pipeworx-io/arcgis-grandchute		0HealthyNone4541 ms2026-10-26T04:45:10.069Zagents-and-memory
Arcgis Fauquier
io.github.pipeworx-io/arcgis-fauquier		0HealthyNone4538 ms2026-10-26T04:45:10.062Zagents-and-memory
Arcgis Fallschurch
io.github.pipeworx-io/arcgis-fallschurch		0HealthyNone4544 ms2026-10-26T04:45:10.055Zagents-and-memory
Arcgis Delawareco
io.github.pipeworx-io/arcgis-delawareco		0HealthyNone452586 ms2026-10-26T04:45:09.962Zagents-and-memory
Arcgis Fairfield
io.github.pipeworx-io/arcgis-fairfield		0HealthyNone452477 ms2026-10-26T04:45:09.930Zagents-and-memory
Arcgis Eagan
io.github.pipeworx-io/arcgis-eagan		0HealthyNone452454 ms2026-10-26T04:45:09.929Zagents-and-memory
Arcgis Eastbatonrouge
io.github.pipeworx-io/arcgis-eastbatonrouge		0HealthyNone452358 ms2026-10-26T04:45:09.928Zagents-and-memory
Arcgis Durham
io.github.pipeworx-io/arcgis-durham		0HealthyNone452468 ms2026-10-26T04:45:09.923Zagents-and-memory
Arcgis Detroit
io.github.pipeworx-io/arcgis-detroit		0HealthyNone452507 ms2026-10-26T04:45:09.914Zagents-and-memory
Arcgis Fairfax
io.github.pipeworx-io/arcgis-fairfax		0HealthyNone452501 ms2026-10-26T04:45:09.872Zagents-and-memory
Arcgis Dublinoh
io.github.pipeworx-io/arcgis-dublinoh		0HealthyNone452482 ms2026-10-26T04:45:09.869Zagents-and-memory
Arcgis Dukescounty
io.github.pipeworx-io/arcgis-dukescounty		0HealthyNone452544 ms2026-10-26T04:45:09.864Zagents-and-memory
Arcgis Cumberland
io.github.pipeworx-io/arcgis-cumberland		0HealthyNone452649 ms2026-10-26T04:45:09.856Zagents-and-memory
Arcgis Cupertino
io.github.pipeworx-io/arcgis-cupertino		0HealthyNone452640 ms2026-10-26T04:45:09.854Zagents-and-memory
Arcgis Darlington
io.github.pipeworx-io/arcgis-darlington		0HealthyNone452648 ms2026-10-26T04:45:09.822Zagents-and-memory
Arcgis Courtenay
io.github.pipeworx-io/arcgis-courtenay		0HealthyNone452646 ms2026-10-26T04:45:09.820Zagents-and-memory
Arcgis Chestercounty
io.github.pipeworx-io/arcgis-chestercounty		0HealthyNone452655 ms2026-10-26T04:45:09.816Zagents-and-memory
Arcgis Dc
io.github.pipeworx-io/arcgis-dc		0HealthyNone452643 ms2026-10-26T04:45:09.815Zagents-and-memory
io.github.petrkrulis2022/touchstone-mcp
io.github.petrkrulis2022/touchstone-mcp		0HealthyNone43278 ms2026-10-26T04:40:15.572Zcrypto-web3
Arcgis Cranston
io.github.pipeworx-io/arcgis-cranston		0HealthyNone451434 ms2026-10-26T04:40:15.572Zagents-and-memory
Arcgis Coquitlam
io.github.pipeworx-io/arcgis-coquitlam		0HealthyNone451514 ms2026-10-26T04:40:15.569Zagents-and-memory
Arcgis Chapelhill
io.github.pipeworx-io/arcgis-chapelhill		0HealthyNone451544 ms2026-10-26T04:40:15.545Zagents-and-memory

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