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.tkllabs.bh.mcp-servers/ethereum-toolkit
https://mcp-servers.bh.tkllabs.io:9780/ethereum-mcp
gated, needs a credential not listed mcp-servers.bh.tkllabs.io:9780
io.tkllabs.bh.mcp-servers/ethereum-toolkit
https://mcp-servers.bh.tkllabs.io:9780/ethereum-sse
bad request not listed mcp-servers.bh.tkllabs.io:9780
io.tkllabs.bh.mcp-servers/ipfs-toolkit
https://mcp-servers.bh.tkllabs.io:9780/ipfs-mcp
gated, needs a credential not listed mcp-servers.bh.tkllabs.io:9780
io.tkllabs.bh.mcp-servers/ipfs-toolkit
https://mcp-servers.bh.tkllabs.io:9780/ipfs-sse
bad request not listed mcp-servers.bh.tkllabs.io:9780
io.tkllabs.bh.mcp-servers/navigation-toolkit
https://mcp-servers.bh.tkllabs.io:9780/navigation-mcp
gated, needs a credential not listed mcp-servers.bh.tkllabs.io:9780
io.tkllabs.bh.mcp-servers/navigation-toolkit
https://mcp-servers.bh.tkllabs.io:9780/navigation-sse
bad request not listed mcp-servers.bh.tkllabs.io:9780
io.tmtb/tmtb-platform
https://tmtb-mcp.fly.dev/mcp
gated, needs a credential not listed tmtb-mcp.fly.dev
io.toolforest/toolforest
https://mcp.toolforest.io/mcp
gated, needs a credential not listed mcp.toolforest.io
io.tooloracle/agentguard
https://feedoracle.io/guard-oracle/mcp/
404 not listed feedoracle.io
io.tooloracle/dealoracle
https://tooloracle.io/deal/mcp/
gated, needs a credential not listed tooloracle.io
io.tooloracle/memoryoracle
https://tooloracle.io/memory/mcp/
404 not listed tooloracle.io
io.tooloracle/paymentoracle
https://tooloracle.io/payments/mcp/
server error not listed tooloracle.io
io.tooloracle/suioracle
https://tooloracle.io/sui/mcp/
answered, not MCP not listed tooloracle.io
io.tooloracle/tlpt
https://tooloracle.io/tlpt/mcp/
answered, not MCP not listed tooloracle.io
io.tooloracle/trustlayer
https://tooloracle.io/trust/mcp/
answered, not MCP not listed tooloracle.io
io.toui/url-shortener
https://mcp.toui.io
gated, needs a credential not listed mcp.toui.io
io.tradeonyx/tradeonyx
https://tradeonyx.io/mcp
gated, needs a credential not listed tradeonyx.io
io.trafficbud/trafficbud
https://www.trafficbud.io/mcp
gated, needs a credential not listed www.trafficbud.io
io.trovest/trovest
https://api.trovest.io/mcp
gated, needs a credential not listed api.trovest.io
io.trunk/mcp-server
https://mcp.trunk.io/mcp
gated, needs a credential not listed mcp.trunk.io
io.tweekit/mcp
https://mcp.tweekit.io/mcp/
answered, not MCP not listed mcp.tweekit.io
io.twelvelabs/twelvelabs-mcp-server
https://mcp.twelvelabs.io
404 not listed mcp.twelvelabs.io
io.twelvelabs/twelvelabs-mcp-server
https://mcp.twelvelabs.io/mcp
404 not listed mcp.twelvelabs.io
io.umtri/umtri
https://mcp.umtri.io
gated, needs a credential not listed mcp.umtri.io
io.unpaged/mcp
https://mcp.unpaged.io/mcp
gated, needs a credential not listed mcp.unpaged.io
io.unplain/unplain
https://app.unplain.io/api/mcp
gated, needs a credential not listed app.unplain.io
io.unstructured/transform
https://mcp.transform.unstructured.io
gated, needs a credential not listed mcp.transform.unstructured.io
autumn-mcp
https://autumn.usefulapi.io/mcp
answers a handshake not listed autumn.usefulapi.io
bannerbear-mcp
https://bannerbear.usefulapi.io/mcp
answers a handshake not listed bannerbear.usefulapi.io
bettermode-mcp
https://bettermode.usefulapi.io/mcp
answers a handshake not listed bettermode.usefulapi.io
io.usefulapi/betterstack
https://betterstack.usefulapi.io/mcp
bad request not listed betterstack.usefulapi.io
io.usefulapi/bird
https://bird.usefulapi.io/mcp
bad request not listed bird.usefulapi.io
io.usefulapi/braintree
https://braintree.usefulapi.io/mcp
bad request not listed braintree.usefulapi.io
io.usefulapi/census
https://census.usefulapi.io/mcp
bad request not listed census.usefulapi.io
io.usefulapi/chargebee
https://chargebee.usefulapi.io/mcp
bad request not listed chargebee.usefulapi.io
io.usefulapi/checkly
https://checkly.usefulapi.io/mcp
bad request not listed checkly.usefulapi.io
io.usefulapi/clickup
https://clickup.usefulapi.io/mcp
bad request not listed clickup.usefulapi.io
io.usefulapi/cliniko
https://cliniko.usefulapi.io/mcp
bad request not listed cliniko.usefulapi.io
io.usefulapi/codat
https://codat.usefulapi.io/mcp
bad request not listed codat.usefulapi.io
io.usefulapi/cronitor
https://cronitor.usefulapi.io/mcp
bad request not listed cronitor.usefulapi.io
io.usefulapi/cronofy
https://cronofy.usefulapi.io/mcp
bad request not listed cronofy.usefulapi.io
io.usefulapi/crowdin
https://crowdin.usefulapi.io/mcp
bad request not listed crowdin.usefulapi.io
io.usefulapi/customerio
https://customerio.usefulapi.io/mcp
bad request not listed customerio.usefulapi.io
io.usefulapi/dnsimple
https://dnsimple.usefulapi.io/mcp
bad request not listed dnsimple.usefulapi.io
io.usefulapi/docraptor
https://docraptor.usefulapi.io/mcp
bad request not listed docraptor.usefulapi.io
io.usefulapi/dropbox-sign
https://dropbox-sign.usefulapi.io/mcp
bad request not listed dropbox-sign.usefulapi.io
io.usefulapi/easypost
https://easypost.usefulapi.io/mcp
bad request not listed easypost.usefulapi.io
io.usefulapi/ecwid
https://ecwid.usefulapi.io/mcp
bad request not listed ecwid.usefulapi.io
io.usefulapi/emailoctopus
https://emailoctopus.usefulapi.io/mcp
bad request not listed emailoctopus.usefulapi.io
io.usefulapi/finnhub
https://finnhub.usefulapi.io/mcp
bad request not listed finnhub.usefulapi.io
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