Every remote server in the official MCP registry, sent one real
initialize handshake. 16,923 servers across
11,823 hosts.
Search what these servers can do · read the measurement
Last checked 2026-09-06. We send a handshake, we do not authenticate and we do not call a tool.
Gated is not broken. 4,068 of these servers answer with a 401 or 403. They are running and want a credential we do not have. A checker that treats them as dead is wrong about 24.0% of the registry before it starts, so we count them separately and always will.
16,923 matching.
| server | result | tools | host |
|---|---|---|---|
| io.usefulapi/fireworks
https://fireworks.usefulapi.io/mcp |
bad request | not listed | fireworks.usefulapi.io |
| io.usefulapi/foxyio
https://foxyio.usefulapi.io/mcp |
bad request | not listed | foxyio.usefulapi.io |
| io.usefulapi/freshdesk
https://freshdesk.usefulapi.io/mcp |
bad request | not listed | freshdesk.usefulapi.io |
| io.usefulapi/gitbook
https://gitbook.usefulapi.io/mcp |
bad request | not listed | gitbook.usefulapi.io |
| io.usefulapi/groove-hq
https://groove-hq.usefulapi.io/mcp |
bad request | not listed | groove-hq.usefulapi.io |
| io.usefulapi/gumroad
https://gumroad.usefulapi.io/mcp |
bad request | not listed | gumroad.usefulapi.io |
| io.usefulapi/harvest
https://harvest.usefulapi.io/mcp |
bad request | not listed | harvest.usefulapi.io |
| io.usefulapi/healthchecksio
https://healthchecksio.usefulapi.io/mcp |
bad request | not listed | healthchecksio.usefulapi.io |
| io.usefulapi/healthie
https://healthie.usefulapi.io/mcp |
bad request | not listed | healthie.usefulapi.io |
| io.usefulapi/hypertune
https://hypertune.usefulapi.io/mcp |
bad request | not listed | hypertune.usefulapi.io |
| io.usefulapi/increase
https://increase.usefulapi.io/mcp |
bad request | not listed | increase.usefulapi.io |
| io.usefulapi/instatus
https://instatus.usefulapi.io/mcp |
bad request | not listed | instatus.usefulapi.io |
| io.usefulapi/keap
https://keap.usefulapi.io/mcp |
bad request | not listed | keap.usefulapi.io |
| io.usefulapi/knack
https://knack.usefulapi.io/mcp |
bad request | not listed | knack.usefulapi.io |
| io.usefulapi/knowledgeowl
https://knowledgeowl.usefulapi.io/mcp |
bad request | not listed | knowledgeowl.usefulapi.io |
| io.usefulapi/lago
https://lago.usefulapi.io/mcp |
bad request | not listed | lago.usefulapi.io |
| io.usefulapi/lambda-labs
https://lambda-labs.usefulapi.io/mcp |
bad request | not listed | lambda-labs.usefulapi.io |
| io.usefulapi/laravel-forge
https://laravel-forge.usefulapi.io/mcp |
bad request | not listed | laravel-forge.usefulapi.io |
| io.usefulapi/lemonsqueezy
https://lemonsqueezy.usefulapi.io/mcp |
bad request | not listed | lemonsqueezy.usefulapi.io |
| io.usefulapi/linear
https://linear.usefulapi.io/mcp |
bad request | not listed | linear.usefulapi.io |
| io.usefulapi/lob
https://lob.usefulapi.io/mcp |
bad request | not listed | lob.usefulapi.io |
| io.usefulapi/loops
https://loops.usefulapi.io/mcp |
bad request | not listed | loops.usefulapi.io |
| io.usefulapi/magicbell
https://magicbell.usefulapi.io/mcp |
bad request | not listed | magicbell.usefulapi.io |
| io.usefulapi/mailchimp
https://mailchimp.usefulapi.io/mcp |
bad request | not listed | mailchimp.usefulapi.io |
| io.usefulapi/mailerlite
https://mailerlite.usefulapi.io/mcp |
bad request | not listed | mailerlite.usefulapi.io |
| io.usefulapi/maptiler
https://maptiler.usefulapi.io/mcp |
bad request | not listed | maptiler.usefulapi.io |
| io.usefulapi/maxmind-minfraud
https://maxmind-minfraud.usefulapi.io/mcp |
bad request | not listed | maxmind-minfraud.usefulapi.io |
| io.usefulapi/memberful
https://memberful.usefulapi.io/mcp |
bad request | not listed | memberful.usefulapi.io |
| io.usefulapi/mercoa
https://mercoa.usefulapi.io/mcp |
bad request | not listed | mercoa.usefulapi.io |
| io.usefulapi/metriport
https://metriport.usefulapi.io/mcp |
bad request | not listed | metriport.usefulapi.io |
| io.usefulapi/mindee
https://mindee.usefulapi.io/mcp |
bad request | not listed | mindee.usefulapi.io |
| io.usefulapi/missive
https://missive.usefulapi.io/mcp |
bad request | not listed | missive.usefulapi.io |
| io.usefulapi/mistral
https://mistral.usefulapi.io/mcp |
bad request | not listed | mistral.usefulapi.io |
| io.usefulapi/mixpanel
https://mixpanel.usefulapi.io/mcp |
bad request | not listed | mixpanel.usefulapi.io |
| io.usefulapi/modern-treasury
https://modern-treasury.usefulapi.io/mcp |
bad request | not listed | modern-treasury.usefulapi.io |
| io.usefulapi/northflank
https://northflank.usefulapi.io/mcp |
bad request | not listed | northflank.usefulapi.io |
| io.usefulapi/numeral
https://numeral.usefulapi.io/mcp |
bad request | not listed | numeral.usefulapi.io |
| io.usefulapi/nylas
https://nylas.usefulapi.io/mcp |
bad request | not listed | nylas.usefulapi.io |
| io.usefulapi/olark
https://olark.usefulapi.io/mcp |
bad request | not listed | olark.usefulapi.io |
| io.usefulapi/orb
https://orb.usefulapi.io/mcp |
bad request | not listed | orb.usefulapi.io |
| io.usefulapi/parabol
https://parabol.usefulapi.io/mcp |
bad request | not listed | parabol.usefulapi.io |
| io.usefulapi/peopledatalabs
https://peopledatalabs.usefulapi.io/mcp |
bad request | not listed | peopledatalabs.usefulapi.io |
| io.usefulapi/pipedrive
https://pipedrive.usefulapi.io/mcp |
bad request | not listed | pipedrive.usefulapi.io |
| io.usefulapi/plausible-analytics
https://plausible-analytics.usefulapi.io/mcp |
bad request | not listed | plausible-analytics.usefulapi.io |
| io.usefulapi/portkey
https://portkey.usefulapi.io/mcp |
bad request | not listed | portkey.usefulapi.io |
| io.usefulapi/printify
https://printify.usefulapi.io/mcp |
bad request | not listed | printify.usefulapi.io |
| io.usefulapi/quaderno
https://quaderno.usefulapi.io/mcp |
bad request | not listed | quaderno.usefulapi.io |
| io.usefulapi/raisely
https://raisely.usefulapi.io/mcp |
bad request | not listed | raisely.usefulapi.io |
| io.usefulapi/recharge
https://recharge.usefulapi.io/mcp |
bad request | not listed | recharge.usefulapi.io |
| io.usefulapi/reclaimai
https://reclaimai.usefulapi.io/mcp |
bad request | not listed | reclaimai.usefulapi.io |