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 |
|---|---|---|---|
| hyades
https://hyades-mcp.apg.workers.dev/mcp |
answers a handshake | 1 | hyades-mcp.apg.workers.dev |
| otwarteapi-mcp
https://otwarteapi.pl/mcp |
answers a handshake | 1 | otwarteapi.pl |
| VinData MCP
https://vindata-mcp.vindata.workers.dev/mcp |
answers a handshake | 1 | vindata-mcp.vindata.workers.dev |
| etsy-tags
https://tagvault.rugscore.workers.dev/mcp |
answers a handshake | 1 | tagvault.rugscore.workers.dev |
| solrisk
https://solrisk.rugscore.workers.dev/mcp |
answers a handshake | 1 | solrisk.rugscore.workers.dev |
| calculator-mcp-server
https://calculator.caseyjhand.com/mcp |
answers a handshake | 1 | calculator.caseyjhand.com |
| codeguide-mcp
https://codeguide-mcp-86057491046.europe-west1.run.app/mcp |
answers a handshake | 1 | codeguide-mcp-86057491046.europe-west1.run.app |
| verify-api
https://slinging-chloride-chair.ngrok-free.dev/v1/verify |
answers a handshake | 1 | slinging-chloride-chair.ngrok-free.dev |
| self-inspect
https://api.ejentum.com/self-inspect-mcp |
answers a handshake | 1 | api.ejentum.com |
| lookup-holiday
https://lookup-holiday.encodari.workers.dev/mcp |
answers a handshake | 1 | lookup-holiday.encodari.workers.dev |
| simulate-monte-carlo
https://simulate-monte-carlo.encodari.workers.dev/mcp |
answers a handshake | 1 | simulate-monte-carlo.encodari.workers.dev |
| validar-codigo-medico
https://validar-codigo-medico.encodari.workers.dev/mcp |
answers a handshake | 1 | validar-codigo-medico.encodari.workers.dev |
| validar-semver
https://validar-semver.encodari.workers.dev/mcp |
answers a handshake | 1 | validar-semver.encodari.workers.dev |
| agentfabric
https://mcp.agentfabric.dev |
answers a handshake | 1 | mcp.agentfabric.dev |
| storefront-renderer
https://mcp.estroni.com.au/mcp |
answers a handshake | 1 | mcp.estroni.com.au |
| preflight
https://skillfoundry.synaplex.ai/products/preflight/mcp/ |
answers a handshake | 1 | skillfoundry.synaplex.ai |
| specky
https://www.specky.space/api/mcp |
answers a handshake | 1 | www.specky.space |
| feedbk-survey-builder
https://mcp.feedbk.ai/mcp |
answers a handshake | 1 | mcp.feedbk.ai |
| agent-commerce-guard
https://agent-commerce-guard.vercel.app/api/mcp |
answers a handshake | 1 | agent-commerce-guard.vercel.app |
| squish
https://api.getsquish.app/mcp |
answers a handshake | 1 | api.getsquish.app |
| asfo
https://asfo-ten.vercel.app/api/mcp |
answers a handshake | 1 | asfo-ten.vercel.app |
| hal9/mcpbuild/send-email
https://next.hal9.ai/mcp/mcpbuild/send-email |
answers a handshake | 1 | next.hal9.ai |
| jolt-tranform-mcp-server
https://jolt-transform.halversondm.com/api/mcp |
answers a handshake | 1 | jolt-transform.halversondm.com |
| WebApp
https://servicebricks.com/api/mcp |
answers a handshake | 1 | servicebricks.com |
| mythaitaxes-mcp
https://mythaitaxes-mcp.hannwill999.workers.dev/mcp |
answers a handshake | 1 | mythaitaxes-mcp.hannwill999.workers.dev |
| impreza-mcp-remote
https://mcp.imprezahost.com/mcp |
answers a handshake | 1 | mcp.imprezahost.com |
| venunite-events
https://mcp.venunite.com/v1/mcp/ |
answers a handshake | 1 | mcp.venunite.com |
| domain-bannin
https://domain-bannin.jp/api/mcp |
answers a handshake | 1 | domain-bannin.jp |
| assess-my-hair
https://assessmyhair.com/api/mcp |
answers a handshake | 1 | assessmyhair.com |
| california-dog-bite-evidence-checklist
https://caldogbiteevidence.com/api/mcp |
answers a handshake | 1 | caldogbiteevidence.com |
| california-slip-and-fall-evidence-checker
https://caslipandfall.com/api/mcp |
answers a handshake | 1 | caslipandfall.com |
| grant-readiness-checklist
https://grantreadinesschecklist.com/api/mcp |
answers a handshake | 1 | grantreadinesschecklist.com |
| Patch Tuesday MCP
https://patch-tuesday-mcp.agreeabledesert-d0b8e491.eastus2.azurecontainerapps.io/mcp |
answers a handshake | 1 | patch-tuesday-mcp.agreeabledesert-d0b8e491.eastus2.azurecontainerapps.io |
| pkg-oracle
https://mcp-snowy-dew-9447.fly.dev/mcp |
answers a handshake | 1 | mcp-snowy-dew-9447.fly.dev |
| mcp-typescript server on vercel
https://receipts-mcp.vercel.app/api/mcp |
answers a handshake | 1 | receipts-mcp.vercel.app |
| kcaldata
https://kcaldata.onrender.com/mcp-server/mcp |
answers a handshake | 1 | kcaldata.onrender.com |
| kcaldata
https://api.kcaldata.com/mcp-server/mcp |
answers a handshake | 1 | api.kcaldata.com |
| echorune-radar
https://echorune.net/mcp |
answers a handshake | 1 | echorune.net |
| machinegrade-validate-mcp
https://api.machinegrade.dev/mcp |
answers a handshake | 1 | api.machinegrade.dev |
| zero-slop
https://mcp.zero-slop.ai/mcp |
answers a handshake | 1 | mcp.zero-slop.ai |
| ReturnCheck
https://returncheck.m-angelmartinez-fer.workers.dev/mcp |
answers a handshake | 1 | returncheck.m-angelmartinez-fer.workers.dev |
| integritypulse
https://integritypulse.marywomack.workers.dev/mcp |
answers a handshake | 1 | integritypulse.marywomack.workers.dev |
| doublecheck
https://web-production-970ba.up.railway.app/mcp |
answers a handshake | 1 | web-production-970ba.up.railway.app |
| mifactory-scraping-api
https://scraping-api-alpha.vercel.app/mcp |
answers a handshake | 1 | scraping-api-alpha.vercel.app |
| outslide
https://outslide.ai/api/x402/mcp |
answers a handshake | 1 | outslide.ai |
| FDE Agent — AI Workflow Pre-mortem
https://fde-mcp.mj-mcp-tools.workers.dev/mcp |
answers a handshake | 1 | fde-mcp.mj-mcp-tools.workers.dev |
| Korean Saju Calculator
https://manseryeok-mcp.mj-mcp-tools.workers.dev/mcp |
answers a handshake | 1 | manseryeok-mcp.mj-mcp-tools.workers.dev |
| modernai-w0-brand-gate
https://w0-mcp-server.modernai.workers.dev |
answers a handshake | 1 | w0-mcp-server.modernai.workers.dev |
| SMARD Prices
https://smard-energy-prices-x402.favo.workers.dev/mcp |
answers a handshake | 1 | smard-energy-prices-x402.favo.workers.dev |
| vouchspec-agent-skill-evidence
https://vouchspec.plyrium.com/api/vouchspec/v1/mcp |
answers a handshake | 1 | vouchspec.plyrium.com |