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
dk.flowdex/wiki
https://mcp.flowdex.dk/mcp
gated, needs a credential not listed mcp.flowdex.dk
dk.grundfast/danish-address-property-data
https://api.grundfast.dk/mcp
gated, needs a credential not listed api.grundfast.dk
dk.herbertkokholm.citecaddy/cite-caddy
https://citecaddy.herbertkokholm.dk/mcp
gated, needs a credential not listed citecaddy.herbertkokholm.dk
dk.humanified/council-consult
https://council.humanified.dk/mcp
server error not listed council.humanified.dk
do.craft.mcp/server
https://mcp.craft.do/my/mcp
gated, needs a credential not listed mcp.craft.do
do.octopus/sitemaps
https://mcp.octopus.do/mcp
gated, needs a credential not listed mcp.octopus.do
dog.ego/ego
https://ego.dog/api/mcp
gated, needs a credential not listed ego.dog
earthlinc
https://earthlinc.earth/mcp
answers a handshake not listed earthlinc.earth
eco.unreasonable/mcp
https://unreasonable.eco/mcp
gated, needs a credential not listed unreasonable.eco
ee.coservices/mcp
https://mcp.coservices.ee/mcp
gated, needs a credential not listed mcp.coservices.ee
ee.offsite/wristwise
https://mcp-wristwise.offsite.ee/mcp
gated, needs a credential not listed mcp-wristwise.offsite.ee
ee.stacktr/publish
https://api.stacktr.ee/mcp
gated, needs a credential not listed api.stacktr.ee
email.deadsimple/dead-simple-email
https://api.deadsimple.email/mcp
gated, needs a credential not listed api.deadsimple.email
email.fixture/email-testing
https://mcp.fixture.email/mcp
gated, needs a credential not listed mcp.fixture.email
email.palisade/palisade
https://api.palisade.email/mcp
gated, needs a credential not listed api.palisade.email
email.templated/mcp
https://app.templated.email/api/mcp
gated, needs a credential not listed app.templated.email
energy.clarigrid/clarigrid
https://mcp.clarigrid.energy/mcp
gated, needs a credential not listed mcp.clarigrid.energy
es.cesaryague/paki-curator
https://cesaryague.es/mcp
answered, not MCP not listed cesaryague.es
es.contix/contix
https://api.contix.es/api/v1/mcp
gated, needs a credential not listed api.contix.es
es.discovr/profiles
https://mcp.discovr.es/mcp/
gated, needs a credential not listed mcp.discovr.es
estate.stream/mcp
https://api-v2.stream.estate/mcp
gated, needs a credential not listed api-v2.stream.estate
eu.agenthost/agenthost
https://agenthost.eu/mcp
gated, needs a credential not listed agenthost.eu
eu.ansvar/dutch-law
https://gateway.ansvar.eu/nl/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/eu-regulations
https://gateway.ansvar.eu/eu/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/french-law
https://gateway.ansvar.eu/fr/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/gateway
https://gateway.ansvar.eu/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/german-law
https://gateway.ansvar.eu/de/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/italian-law
https://gateway.ansvar.eu/it/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/polish-law
https://gateway.ansvar.eu/pl/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/spanish-law
https://gateway.ansvar.eu/es/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/swedish-law
https://gateway.ansvar.eu/se/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/threat-intel
https://gateway.ansvar.eu/threat-intel/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.ansvar/us-law
https://gateway.ansvar.eu/us/mcp
gated, needs a credential not listed gateway.ansvar.eu
eu.checkmails/checkmails
https://checkmails.eu/api/mcp
unreachable not listed checkmails.eu
eu.drafto/mcp
https://drafto.eu/api/mcp
gated, needs a credential not listed drafto.eu
eu.nordicmcp/fortnox
https://nordicmcp.eu/mcp/fortnox/{token}
gated, needs a credential not listed nordicmcp.eu
eu.nordicmcp/google-mail
https://nordicmcp.eu/mcp/google-mail/{token}
gated, needs a credential not listed nordicmcp.eu
eu.nordicmcp/stripe
https://nordicmcp.eu/mcp/stripe/{token}
gated, needs a credential not listed nordicmcp.eu
eu.nordicmcp/weather
https://nordicmcp.eu/mcp/weather/{token}
gated, needs a credential not listed nordicmcp.eu
eu.sendletter/sendletter
https://sendletter.eu/api/mcp
gated, needs a credential not listed sendletter.eu
exchange.carso/carso-exchange-engine
https://engine.carso.exchange/mcp
gated, needs a credential not listed engine.carso.exchange
fast.rank/rank-fast
https://app.rank.fast/api/mcp
gated, needs a credential not listed app.rank.fast
fast.sorted/event-registration
https://sorted.fast/mcp
gated, needs a credential not listed sorted.fast
film.martini/mcp
https://www.martini.film/mcp
gated, needs a credential not listed www.martini.film
finance.betteroff/public
https://betteroff.finance/mcp
404 not listed betteroff.finance
finance.double.agent4/knowledge-base
https://agent4.double.finance/mcp/message
server error not listed agent4.double.finance
finance.norman/mcp-server
https://mcp.norman.finance/mcp
gated, needs a credential not listed mcp.norman.finance
finance.orla/orla
https://app.orla.finance/api/mcp
gated, needs a credential not listed app.orla.finance
Quantic Finance
https://quantic.finance/mcp
answers a handshake not listed quantic.finance
fm.callboard/connector
https://api.callboard.fm/mcp
gated, needs a credential not listed api.callboard.fm
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