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
CryptoAgentMail
https://srun66.com/mcp
answers a handshake 0 srun66.com
ai-crawler-policy
https://api.lazy-mac.com/ai-crawler-policy/mcp
answers a handshake 0 api.lazy-mac.com
ai-gateway
https://api.lazy-mac.com/ai-gateway/mcp
answers a handshake 0 api.lazy-mac.com
ghostdom
https://ghostdom.jason-12c.workers.dev/mcp
answers a handshake 0 ghostdom.jason-12c.workers.dev
ac.inference.sh/mcp
https://sh.inference.ac
gated, needs a credential not listed sh.inference.ac
ae.propick/propick
https://propick.ae/mcp
gated, needs a credential not listed propick.ae
agency.lona/trading
https://mcp.lona.agency/mcp
gated, needs a credential not listed mcp.lona.agency
ai.1325/mcp
https://agoclnqfyinwjxdmjnns.supabase.co/functions/v1/mcp
gated, needs a credential not listed agoclnqfyinwjxdmjnns.supabase.co
ai.aarna/atars-mcp
https://mcp.aarna.ai/mcp
unreachable not listed mcp.aarna.ai
mcp
https://mcp.abmeter.ai
answers a handshake not listed mcp.abmeter.ai
ai.actwise/ideation
https://actwise.ai/ideation/mcp/v1
gated, needs a credential not listed actwise.ai
ai.adadvisor/mcp-server
https://api.adadvisor.ai/mcp
gated, needs a credential not listed api.adadvisor.ai
ai.adplane/google-ads
https://mcp.adplane.ai
gated, needs a credential not listed mcp.adplane.ai
ai.adramp/google-ads
https://mcp.adramp.ai/sse
gated, needs a credential not listed mcp.adramp.ai
ai.adramp/google-ads
https://mcp.adramp.ai
gated, needs a credential not listed mcp.adramp.ai
ai.adside/adside
https://api.adside.ai/mcp
gated, needs a credential not listed api.adside.ai
ai.adweave/meta-ads-mcp
https://mcp.adweave.ai/meta-ads-mcp
gated, needs a credential not listed mcp.adweave.ai
ai.agentdm/agentdm
https://api.agentdm.ai/api/v1/grid
gated, needs a credential not listed api.agentdm.ai
ai.agentdm/agentdm
https://api.agentdm.ai/mcp/v1/grid
gated, needs a credential not listed api.agentdm.ai
ai.agentgates/mcp
https://agentgates.ai/mcp
gated, needs a credential not listed agentgates.ai
ai.agentic-news/mcp
https://api.agentic-news.ai/mcp
gated, needs a credential not listed api.agentic-news.ai
ai.agenticaffiliate/affiliate-networks-mcp
https://mcp.agenticaffiliate.ai/mcp
gated, needs a credential not listed mcp.agenticaffiliate.ai
ai.agenticshelf/graffeo
https://api.agenticshelf.ai/m/graffeo/mcp
server error not listed api.agenticshelf.ai
ai.agenticshelf/mcp
https://api.agenticshelf.ai/mcp
server error not listed api.agenticshelf.ai
ai.agenticshelf/puroair
https://api.agenticshelf.ai/m/puroair/mcp
server error not listed api.agenticshelf.ai
ai.agentmesh/mesh
https://api.agentmesh.ai/v1/mcp
gated, needs a credential not listed api.agentmesh.ai
agentxray
https://agentxray.ai/api/mcp
answers a handshake not listed agentxray.ai
ai.aginera/preconstruction
https://mcp.aginera.ai/mcp
gated, needs a credential not listed mcp.aginera.ai
ai.ai-advisors/mcp
https://app.ai-advisors.ai/api/mcp
gated, needs a credential not listed app.ai-advisors.ai
ai.aient/mcp
https://aient.ai/mcp
gated, needs a credential not listed aient.ai
ai.alpic.mcp/alpic-mcp
https://mcp.alpic.ai
gated, needs a credential not listed mcp.alpic.ai
ai.alpic.test/test-mcp-server
https://test.alpic.ai/
unreachable not listed test.alpic.ai
ai.ambix/ambix
https://mcp.ambix.ai
gated, needs a credential not listed mcp.ambix.ai
ai.anomalyarmor/armor-mcp
https://mcp.anomalyarmor.ai/mcp
gated, needs a credential not listed mcp.anomalyarmor.ai
ai.anzenna/anzenna
https://mcp.anzenna.ai/sse
gated, needs a credential not listed mcp.anzenna.ai
ai.appdeploy/deploy-app
https://api-v2.appdeploy.ai/mcp
gated, needs a credential not listed api-v2.appdeploy.ai
ai.arketo/arketo
https://arketo.ai/api/mcp
gated, needs a credential not listed arketo.ai
ai.arpi/arpi-mcp
https://mcp.arpi.ai/mcp
404 not listed mcp.arpi.ai
ai.askline/askline
https://askline.ai/mcp
gated, needs a credential not listed askline.ai
ai.assetlog/assetlog
https://api.assetlog.ai/mcp
gated, needs a credential not listed api.assetlog.ai
ai.astrofabric/mcp
https://www.astrofabric.ai/api/mcp
gated, needs a credential not listed www.astrofabric.ai
ai.atlaso/mcp
https://mcp.atlaso.ai/mcp
gated, needs a credential not listed mcp.atlaso.ai
ai.atlasverified/atlas-mcp
https://api.atlasverified.ai/mcp
gated, needs a credential not listed api.atlasverified.ai
ai.atlier/project-desk
https://atlier.ai/mcp
gated, needs a credential not listed atlier.ai
ai.augmentev/paseo
https://api.augmentev.ai/mcp
gated, needs a credential not listed api.augmentev.ai
ai.augworlds/travel-world
https://travel.augworlds.ai/mcp
gated, needs a credential not listed travel.augworlds.ai
ai.auteng/mcp
https://auteng.ai/mcp
answered, not MCP not listed auteng.ai
ai.authoryze/authoryze
https://authoryze.ai/api/mcp
gated, needs a credential not listed authoryze.ai
autoposting-mcp
https://app.autoposting.ai/mcp
answers a handshake not listed app.autoposting.ai
ai.autorfp/mcp
https://{api_host}/mcp
unreachable not listed {api_host}
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