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.sapiom/mcp-server
https://api.sapiom.ai/v1/mcp
gated, needs a credential not listed api.sapiom.ai
io.github.sarduine13-star/agent-teller
https://agent-teller-production.up.railway.app/mcp
404 not listed agent-teller-production.up.railway.app
io.github.saybanet/sayba-platform
https://mcp.sayba.com/sse
404 not listed mcp.sayba.com
io.github.scavio-ai/scavio-mcp
https://mcp.scavio.dev/mcp
gated, needs a credential not listed mcp.scavio.dev
io.github.scheur/blitz-wings
https://mcp.vectoropsai.com/mcp
gated, needs a credential not listed mcp.vectoropsai.com
io.github.scotia1973-bot/gadgethumans-x402
https://swarm.gadgethumans.com/mcp
unreachable not listed swarm.gadgethumans.com
io.github.scott2121/agentbooks-mcp
https://agentbooks-mcp.agentbooks.workers.dev/mcp
unreachable not listed agentbooks-mcp.agentbooks.workers.dev
io.github.scottconfusedgorilla/sncro
https://relay.sncro.net/tools/mcp
unreachable not listed relay.sncro.net
io.github.scottwittrock/cleo
https://api.cleofamily.app/mcp
gated, needs a credential not listed api.cleofamily.app
io.github.scoutexchange/dewey
https://dewey-lro-test.lro.goscoutgo.com/mcp
404 not listed dewey-lro-test.lro.goscoutgo.com
io.github.scrollmark/socialgpt
https://mcp.gpt.social/mcp
gated, needs a credential not listed mcp.gpt.social
io.github.scroobius-pip/fudge
https://api.withfudge.com/mcp
gated, needs a credential not listed api.withfudge.com
io.github.seanthings/colorado-business-registrations
https://colorado.dwelldata.io/mcp
JSON-RPC error not listed colorado.dwelldata.io
io.github.seanthings/ohio-business-registrations
https://ohio-business-storefront.onrender.com/mcp
unreachable not listed ohio-business-storefront.onrender.com
io.github.seanthings/ohio-business-registrations
https://ohio.dwelldata.io/mcp
JSON-RPC error not listed ohio.dwelldata.io
io.github.seanthings/socal-business-registrations
https://socal-business-storefront.onrender.com/mcp
404 not listed socal-business-storefront.onrender.com
io.github.securecoders/parallect
https://parallect.ai/api/mcp/mcp
gated, needs a credential not listed parallect.ai
io.github.seldonframe/mcp
https://mcp.seldonframe.com/v1
gated, needs a credential not listed mcp.seldonframe.com
io.github.selectic-ai/mcp
https://selectic.ai/api/mcp
gated, needs a credential not listed selectic.ai
io.github.selflabbs/base-intel-mcp
https://base.selflabbs.com/mcp
unreachable not listed base.selflabbs.com
io.github.selflabbs/domain-intel-mcp
https://domain-intel-mcp.greenfield1775.workers.dev/mcp
404 not listed domain-intel-mcp.greenfield1775.workers.dev
io.github.selflabbs/domain-intel-mcp
https://domain.selflabbs.com/mcp
unreachable not listed domain.selflabbs.com
io.github.selflabbs/economy-intel-mcp
https://economy.selflabbs.com/mcp
unreachable not listed economy.selflabbs.com
io.github.selflabbs/filings-intel-mcp
https://filings.selflabbs.com/mcp
unreachable not listed filings.selflabbs.com
io.github.selflabbs/market-intel-mcp
https://market-intel-mcp.greenfield1775.workers.dev/mcp
404 not listed market-intel-mcp.greenfield1775.workers.dev
io.github.selflabbs/market-intel-mcp
https://market.selflabbs.com/mcp
unreachable not listed market.selflabbs.com
io.github.selflabbs/package-intel-mcp
https://package.selflabbs.com/mcp
unreachable not listed package.selflabbs.com
io.github.selflabbs/regulatory-intel-mcp
https://regulatory.selflabbs.com/mcp
unreachable not listed regulatory.selflabbs.com
io.github.selflabbs/security-intel-mcp
https://security-intel-mcp.greenfield1775.workers.dev/mcp
404 not listed security-intel-mcp.greenfield1775.workers.dev
io.github.selflabbs/security-intel-mcp
https://security.selflabbs.com/mcp
unreachable not listed security.selflabbs.com
io.github.selflabbs/weather-intel-mcp
https://weather.selflabbs.com/mcp
unreachable not listed weather.selflabbs.com
io.github.selvoapp/selvo
https://app.selvo.co/mcp
JSON-RPC error not listed app.selvo.co
io.github.semilattice-research/mcp
https://mcp.semilattice.ai
gated, needs a credential not listed mcp.semilattice.ai
io.github.sensact-agents/sensact
https://helavgrvwipmdvyejfom.supabase.co/functions/v1/mcp
unreachable not listed helavgrvwipmdvyejfom.supabase.co
io.github.sentrysurface/sentrysurface
https://api.sentrysurface.io/mcp/mcp
unreachable not listed api.sentrysurface.io
io.github.seob5285-alt/edge-diagnostics-x402
https://edge-diagnostics-x402.seob5285.workers.dev/v1/diagnose-host
JSON-RPC error not listed edge-diagnostics-x402.seob5285.workers.dev
io.github.sercanmetalore/ai-act-compliance-mcp
https://mcp.boykaf.com/ai-act-compliance/mcp
unreachable not listed mcp.boykaf.com
io.github.sercanmetalore/automotive-mcp
https://mcp.boykaf.com/automotive/mcp
unreachable not listed mcp.boykaf.com
io.github.sercanmetalore/bin-lookup-mcp
https://mcp.boykaf.com/bin-lookup/mcp
unreachable not listed mcp.boykaf.com
io.github.sercanmetalore/clinical-fda-mcp
https://mcp.boykaf.com/clinical-fda/mcp
gated, needs a credential not listed mcp.boykaf.com
io.github.sercanmetalore/company-enrichment-mcp
https://mcp.boykaf.com/company-enrichment/mcp
unreachable not listed mcp.boykaf.com
io.github.sercanmetalore/document-intel-mcp
https://mcp.boykaf.com/document-intel/mcp
unreachable not listed mcp.boykaf.com
io.github.sercanmetalore/ekap-tender-mcp
https://mcp.boykaf.com/ekap-tender/mcp
gated, needs a credential not listed mcp.boykaf.com
io.github.sercanmetalore/finance-validation-mcp
https://mcp.boykaf.com/finance-validation/mcp
gated, needs a credential not listed mcp.boykaf.com
io.github.sercanmetalore/job-search-mcp
https://mcp.boykaf.com/job-search/mcp
unreachable not listed mcp.boykaf.com
io.github.sercanmetalore/price-intel-mcp
https://mcp.boykaf.com/price-intel/mcp
gated, needs a credential not listed mcp.boykaf.com
io.github.sercanmetalore/rag-service-mcp
https://mcp.boykaf.com/rag-service/mcp
gated, needs a credential not listed mcp.boykaf.com
io.github.sercanmetalore/real-estate-global-mcp
https://mcp.boykaf.com/real-estate-global/mcp
gated, needs a credential not listed mcp.boykaf.com
io.github.sercanmetalore/sanctions-screening-mcp
https://mcp.boykaf.com/sanctions-screening/mcp
gated, needs a credential not listed mcp.boykaf.com
io.github.sercanmetalore/serp-content-mcp
https://mcp.boykaf.com/serp-content/mcp
gated, needs a credential not listed mcp.boykaf.com
previous page 312 next