MCP servers, called rather than listed

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.

serverresulttoolshost
io.github.ONE8943/ai-furniture-hub
https://ai-furniture-hub.onrender.com/sse
404 not listed ai-furniture-hub.onrender.com
io.github.ONLYOFFICE/docspace
https://mcp.onlyoffice.com/sse
gated, needs a credential not listed mcp.onlyoffice.com
io.github.ONLYOFFICE/docspace
https://mcp.onlyoffice.com/mcp
gated, needs a credential not listed mcp.onlyoffice.com
io.github.Obelinf/mcp
https://api.obelinf.com/{orgSlug}/mcp
gated, needs a credential not listed api.obelinf.com
io.github.Obelinf/mcp
https://api.obelinf.com/mcp?org={orgSlug}
gated, needs a credential not listed api.obelinf.com
io.github.ObligationSign/agts-mcp
https://agts-mcp.obligationsign.com/mcp
unreachable not listed agts-mcp.obligationsign.com
io.github.ObligationSign/agts-mcp
https://agts-mcp.obligationsign.com/mcp/sse
unreachable not listed agts-mcp.obligationsign.com
io.github.OctoPerf/octoperf
https://api.octoperf.com/mcp
gated, needs a credential not listed api.octoperf.com
io.github.OjasKord/hs-code-classifier-mcp-server
https://hs-code-classifier-mcp-production.up.railway.app
404 not listed hs-code-classifier-mcp-production.up.railway.app
io.github.OjasKord/hs-code-classifier-mcp-server
https://hs-code-classifier-mcp-server-production.up.railway.app
404 not listed hs-code-classifier-mcp-server-production.up.railway.app
io.github.OjasKord/quantum-suitability-validator-mcp-server
https://quantum-suitability-validator-mcp-production.up.railway.app
404 not listed quantum-suitability-validator-mcp-production.up.railway.app
io.github.Olddun/agent-revenue-copilot
https://doctors-lighting-facial-admissions.trycloudflare.com/agent-revenue-copilot/mcp
unreachable not listed doctors-lighting-facial-admissions.trycloudflare.com
agentlock
https://app.agentlock.net/api/mcp
answers a handshake not listed app.agentlock.net
io.github.Omnidim/omnidim-mcp-server
https://mcp.omnidim.io/mcp
gated, needs a credential not listed mcp.omnidim.io
io.github.Omnipotent6/inkmotion
https://mcp.inkmotion.app/mcp/
gated, needs a credential not listed mcp.inkmotion.app
io.github.OnlineDopamine/genviral
https://mcp.genviral.io/mcp
gated, needs a credential not listed mcp.genviral.io
io.github.Onplana/mcp-server
https://mcp.onplana.com/mcp
gated, needs a credential not listed mcp.onplana.com
io.github.OpenHeritageOnline/public-search
https://openheritage.online/mcp
JSON-RPC error not listed openheritage.online
io.github.OptimNow/ai-pricing-hub
https://ai-pricing-hub-mcp-9604f763.alpic.live/
JSON-RPC error not listed ai-pricing-hub-mcp-9604f763.alpic.live
io.github.OptimNow/cloud-finops
https://cloud-finops-skills-590a051d.alpic.live/mcp
JSON-RPC error not listed cloud-finops-skills-590a051d.alpic.live
io.github.OrbiAds/gam
https://orbiads.com/mcp
gated, needs a credential not listed orbiads.com
io.github.OrbisAPI/orbis-marketplace
https://orbisapi.com/api/mcp
404 not listed orbisapi.com
io.github.OrbisAPI/orbis-marketplace
https://orbisapi.com/api/mcp/sse
404 not listed orbisapi.com
io.github.OsbornVentures/websiteiq
https://websiteiq.xyz/mcp
JSON-RPC error not listed websiteiq.xyz
substrate
https://substrate.garmolabs.com/mcp-server/mcp
answers a handshake not listed substrate.garmolabs.com
io.github.PLANIT-TECH/lawbster
https://lawbster.planitprima.com/mcp
gated, needs a credential not listed lawbster.planitprima.com
io.github.PLANIT-TECH/primamcp
https://mcp.planitprima.com/mcp
gated, needs a credential not listed mcp.planitprima.com
io.github.POP24/lebonfoin-mcp
https://lebonfoin-mcp-production.up.railway.app/sse
404 not listed lebonfoin-mcp-production.up.railway.app
io.github.PStryder/tablacognita
https://app.tablacognita.com/mcp
gated, needs a credential not listed app.tablacognita.com
io.github.PageLens-AI/pagelensai-mcp-server
https://www.pagelensai.com/api/mcp
gated, needs a credential not listed www.pagelensai.com
io.github.PaidSync/paidsync
https://mcp.paidsync.ai/mcp
gated, needs a credential not listed mcp.paidsync.ai
io.github.Pangolin-spg/pangolinfo-mcp
https://mcp.pangolinfo.com/mcp
gated, needs a credential not listed mcp.pangolinfo.com
io.github.PanosSalt/MCP-Gateway
https://your-gateway.example.com/t/your-org/mcp/sse
unreachable not listed your-gateway.example.com
io.github.Parisi-Labs/askthegrid
https://mcp.askthegrid.com/v1/global
gated, needs a credential not listed mcp.askthegrid.com
io.github.Parsons-ai/money
https://money.parsons.ai/api/mcp
404 not listed money.parsons.ai
io.github.PascaleBeier/hitkeep
https://{hitkeep_host}/mcp
unreachable not listed {hitkeep_host}
io.github.Patrax/review-router
https://api.tenpace.com/mcp
404 not listed api.tenpace.com
io.github.PayRam/payram-helper-mcp
https://mcp.payram.com/mcp/sse
404 not listed mcp.payram.com
io.github.Pearl-Passport/pearl-agent-plugin
https://agent.joinpearl.co/mcp
gated, needs a credential not listed agent.joinpearl.co
io.github.Periskop-ai/shopping-discovery
https://mcp.periskop.ai/v1/mcp
gated, needs a credential not listed mcp.periskop.ai
io.github.Perufitlife/aviation-mcp
https://renzomacar--aviation-mcp.apify.actor/mcp?token={apifyToken}
gated, needs a credential not listed renzomacar--aviation-mcp.apify.actor
io.github.Perufitlife/multi-scraper-mcp
https://renzomacar--multi-scraper-mcp.apify.actor/mcp?token={apifyToken}
gated, needs a credential not listed renzomacar--multi-scraper-mcp.apify.actor
io.github.PhoenixFeuer32/claude-context-bridge
https://claude-context-bridge.fly.dev/mcp
gated, needs a credential not listed claude-context-bridge.fly.dev
io.github.PhotoRomano/mcp-local-business
https://mcp-lb.townroster.com/mcp
gated, needs a credential not listed mcp-lb.townroster.com
io.github.PhotoRomano/mcp-recipe
https://mcp-recipe.fakeoutkitchen.com/mcp
gated, needs a credential not listed mcp-recipe.fakeoutkitchen.com
io.github.Pikaivan/convradar-mcp
https://mcp.convradar.com/mcp
gated, needs a credential not listed mcp.convradar.com
io.github.PitchGhost/mcp
https://mcp.pitchghost.com/
gated, needs a credential not listed mcp.pitchghost.com
io.github.Pixel-Aly/EverAlice-AI-MCP
https://kfdadgtwmcmgehstagbe.supabase.co/functions/v1/mcp-server
gated, needs a credential not listed kfdadgtwmcmgehstagbe.supabase.co
io.github.Polsia-Inc/slb-florida-business-intelligence
https://support-local-businesses.polsia.app/mcp
server error not listed support-local-businesses.polsia.app
io.github.PostHog/mcp
https://mcp.posthog.com/mcp
gated, needs a credential not listed mcp.posthog.com
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