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.cloudbees/unify-mcp-server
https://mcp.cloudbees.io/v1/mcp
gated, needs a credential not listed mcp.cloudbees.io
io.github.cloudinary/asset-management-mcp
https://asset-management.mcp.cloudinary.com/mcp
gated, needs a credential not listed asset-management.mcp.cloudinary.com
io.github.cloudsprite-io/cloudsprite
https://api.cloudsprite.io/mcp
gated, needs a credential not listed api.cloudsprite.io
io.github.cmcgrabby-hue/syndicate-links
https://mcp.syndicatelinks.co/mcp
unreachable not listed mcp.syndicatelinks.co
io.github.cmdenney/logicnodes-mcp
https://logicnodes.io/mcp
unreachable not listed logicnodes.io
io.github.cmdenney/logicnodes-mcp
https://logicnodes.io/sse
unreachable not listed logicnodes.io
io.github.cmondillo/content-moderation-api
https://content-moderation-api-hhy1.onrender.com/mcp
answered, not MCP not listed content-moderation-api-hhy1.onrender.com
io.github.cmondillo/link-preview-api
https://link-preview-api-z4nf.onrender.com/mcp
answered, not MCP not listed link-preview-api-z4nf.onrender.com
io.github.cmondillo/link-preview-cache-api
https://link-preview-cache-api.onrender.com/mcp
answered, not MCP not listed link-preview-cache-api.onrender.com
io.github.coder/coder
https://{coder_hostname}/api/experimental/mcp/http
unreachable not listed {coder_hostname}
io.github.coinrule-com/coinrule-mcp
https://cloud.coinrule.com/mcp
gated, needs a credential not listed cloud.coinrule.com
io.github.colorfulbox-inc/scale-hr
https://mcp.scale-hr.io/mcp
gated, needs a credential not listed mcp.scale-hr.io
io.github.commodus67/sports-probabilities-mcp
https://commodus67--sports-probabilities-mcp.apify.actor/mcp
gated, needs a credential not listed commodus67--sports-probabilities-mcp.apify.actor
io.github.connected-paths/mcp-social
https://social-mcp.connectedpaths.com/mcp
gated, needs a credential not listed social-mcp.connectedpaths.com
io.github.connected-paths/mcp-social
https://social-mcp.connectedpaths.com/mcp/sse
404 not listed social-mcp.connectedpaths.com
io.github.connected-paths/paid-ads
https://paidads-mcp.connectedpaths.com/mcp
gated, needs a credential not listed paidads-mcp.connectedpaths.com
io.github.connerlambden/bgpt-mcp
https://bgpt.pro/mcp/sse
answered, not MCP not listed bgpt.pro
io.github.constants-ai/constants
https://www.constants.io/api/mcp
gated, needs a credential not listed www.constants.io
io.github.consultkit/consultkit
https://api.getconsultkit.com/mcp
gated, needs a credential not listed api.getconsultkit.com
io.github.contacto291/propelagent
https://www.propelagent.studio/api/mcp
gated, needs a credential not listed www.propelagent.studio
io.github.contextstream/mcp-server
https://mcp.contextstream.io/mcp
gated, needs a credential not listed mcp.contextstream.io
coredash-mcp
https://app.coredash.app/api/mcp
answers a handshake not listed app.coredash.app
io.github.corporatelad/promptscan
https://promptscan.dev/mcp/
404 not listed promptscan.dev
io.github.cottom/3dlogo
https://3dlogo.io/api/mcp
gated, needs a credential not listed 3dlogo.io
io.github.cowboyhq/cowboy-model-finder
https://cowboy-model-finder-mcp-app-8b3709a7529a.herokuapp.com/sse
404 not listed cowboy-model-finder-mcp-app-8b3709a7529a.herokuapp.com
io.github.craigmbrown/blindoracle
https://craigmbrown.com/api/v2/
gated, needs a credential not listed craigmbrown.com
io.github.creator35lwb-web/verifimind-genesis
https://verifimind.ysenseai.org/mcp
answered, not MCP not listed verifimind.ysenseai.org
io.github.cristianmoroaica/bountyverdict
https://bountyverdict-agent-production.mimirslab.workers.dev/mcp
404 not listed bountyverdict-agent-production.mimirslab.workers.dev
io.github.cristianosantana/mcp-despensa-hub
https://mcp-despensa-hub.onrender.com/mcp
gated, needs a credential not listed mcp-despensa-hub.onrender.com
io.github.cristianosantana/mcp-nfe-hub-v1
https://mcp-nfe-hub.onrender.com/mcp
server error not listed mcp-nfe-hub.onrender.com
io.github.cristianosantana/mcp-smart-hub
https://mcp-smart-hub.onrender.com/mcp
gated, needs a credential not listed mcp-smart-hub.onrender.com
io.github.cryptomotifs/cipher-x402-mcp
https://cipher-x402-mcp.vercel.app/mcp
JSON-RPC error not listed cipher-x402-mcp.vercel.app
io.github.crytobot459/eurorwa-analyst
https://rwa-dashboard-gamma.vercel.app/mcp
404 not listed rwa-dashboard-gamma.vercel.app
Agentry MCP
https://api.agentry.com/mcp
answers a handshake not listed api.agentry.com
io.github.cuilinhao/shortsmonkey-youtube-outlier-research
https://mcp.shortsmonkey.com/mcp
gated, needs a credential not listed mcp.shortsmonkey.com
io.github.cwjgege/genflowai
https://www.genflowai.io/mcp
gated, needs a credential not listed www.genflowai.io
io.github.cx-anand-nandeshwar/dlp-mcp
https://{api_host}/api/dlp/mcp/{tenant_id}
unreachable not listed {api_host}
io.github.cyanheads/gbif-mcp-server
https://gbif.caseyjhand.com/mcp
unreachable not listed gbif.caseyjhand.com
io.github.cyanheads/noaa-cdo-mcp-server
https://noaa-cdo.caseyjhand.com/mcp
unreachable not listed noaa-cdo.caseyjhand.com
io.github.cyanheads/nominatim-mcp-server
https://nominatim.caseyjhand.com/mcp
unreachable not listed nominatim.caseyjhand.com
io.github.czcz0009/carsensor-price-range-mcp
https://woolen-snake--carsensor-price-range-mcp.apify.actor/mcp
gated, needs a credential not listed woolen-snake--carsensor-price-range-mcp.apify.actor
io.github.dalvaren/calmboard
https://calmboard.ai/mcp
gated, needs a credential not listed calmboard.ai
io.github.dalyaka/helisoma
https://api.helisoma.com/mcp
gated, needs a credential not listed api.helisoma.com
io.github.damdafayton/avukatim
https://hukuk.damdafa.com/mcp/server/sse
gated, needs a credential not listed hukuk.damdafa.com
io.github.damdafayton/dreamhome
https://foto.damdafa.com/mcp/server/sse
gated, needs a credential not listed foto.damdafa.com
io.github.damdafayton/mockupper
https://mockupper.damdafa.com/mcp/server/sse
gated, needs a credential not listed mockupper.damdafa.com
senders-mcp
https://mcp.senders.ai/mcp
answers a handshake not listed mcp.senders.ai
io.github.dan24ou-cpu/agent-signal
https://agent-signal-production.up.railway.app/mcp
404 not listed agent-signal-production.up.railway.app
io.github.dancourse/agentdocs
https://getagentdocs.com/mcp
gated, needs a credential not listed getagentdocs.com
io.github.danielfrommunich/fmcg-network
https://mcp.fmcg.network/mcp
gated, needs a credential not listed mcp.fmcg.network
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