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.lobu-ai/lobu
https://lobu.ai/mcp
gated, needs a credential not listed lobu.ai
io.github.loops-so/loops
https://mcp.loops.so
gated, needs a credential not listed mcp.loops.so
io.github.louislili/geo-agent-mcp
https://geo.yigather.com/api/v1/mcp
gated, needs a credential not listed geo.yigather.com
io.github.lowenbjer/refetch
https://refetch.cloud/mcp
gated, needs a credential not listed refetch.cloud
io.github.lubobali/lubot
https://mcp.lubot.ai/mcp
JSON-RPC error not listed mcp.lubot.ai
io.github.luhkas2309/osigu-rcm
https://dreamsteam-production.up.railway.app/mcp
404 not listed dreamsteam-production.up.railway.app
io.github.luis-fuentes/maqui
https://app.somosmaqui.com/api/mcp
gated, needs a credential not listed app.somosmaqui.com
io.github.luisbretasjr/routekit
https://routekit.nexterait.com.br/mcp
gated, needs a credential not listed routekit.nexterait.com.br
io.github.lunkerchen/labangram
https://labangram.kamera-ichi.com/api/product-mcp
answered, not MCP not listed labangram.kamera-ichi.com
io.github.lunkerchen/labangram
https://labangram.kamera-ichi.com/api/mcp
answered, not MCP not listed labangram.kamera-ichi.com
io.github.luziadev/luzia
https://mcp.luzia.dev/mcp
gated, needs a credential not listed mcp.luzia.dev
io.github.lvsmanhole/clearscreen
https://clearscreen-mcp.mcpize.run/mcp
gated, needs a credential not listed clearscreen-mcp.mcpize.run
io.github.lxxmng/container-tracking
https://mcp.trackingmcp.com/mcp
gated, needs a credential not listed mcp.trackingmcp.com
io.github.lxxmng/container-tracking
https://mcp.trackingmcp.com/sse
JSON-RPC error not listed mcp.trackingmcp.com
io.github.m2ml/m2ml
https://mcp.m2ml.ai/mcp
gated, needs a credential not listed mcp.m2ml.ai
io.github.maaakso/contexter
https://contexterai.com/mcp
gated, needs a credential not listed contexterai.com
io.github.macklpgr/trakkr-mcp
https://api.trakkr.ai/mcp
gated, needs a credential not listed api.trakkr.ai
io.github.madezmedia/acmi-mcp
https://server.smithery.ai/@madezmediapartners/acmi-mcp/mcp
gated, needs a credential not listed server.smithery.ai
io.github.magiautonomous/casper-tools
https://virtue-hardly-skills-calling.trycloudflare.com/mcp
unreachable not listed virtue-hardly-skills-calling.trycloudflare.com
io.github.magiautonomous/casper-tools
https://facial-avi-apps-taken.trycloudflare.com
unreachable not listed facial-avi-apps-taken.trycloudflare.com
io.github.magiautonomous/casper-tools
https://louis-concerned-wednesday-lived.trycloudflare.com
unreachable not listed louis-concerned-wednesday-lived.trycloudflare.com
io.github.magiautonomous/casper-tools
https://garage-layout-recovered-savings.trycloudflare.com
unreachable not listed garage-layout-recovered-savings.trycloudflare.com
io.github.magiautonomous/casper-tools
https://recipes-fighter-cars-fire.trycloudflare.com
unreachable not listed recipes-fighter-cars-fire.trycloudflare.com
io.github.mailercloud-com/mcp-server
https://mcp.mailercloud.com/mcp
gated, needs a credential not listed mcp.mailercloud.com
io.github.major7apps/pensyve
https://mcp.pensyve.com/mcp
gated, needs a credential not listed mcp.pensyve.com
io.github.majorelalexis-stack/maxia
https://maxiaworld.app/mcp
answered, not MCP not listed maxiaworld.app
io.github.makeev/alphai-mcp
https://mcp.alphai.io/mcp
gated, needs a credential not listed mcp.alphai.io
io.github.makeitrunai/makeitrun-mcp
https://mcp.makeitrun.ai/mcp
gated, needs a credential not listed mcp.makeitrun.ai
io.github.makloai/mcp-server-dashform
https://getaiform.com/api/mcp
gated, needs a credential not listed getaiform.com
io.github.mako-ai/mako
https://app.mako.ai/api/mcp
gated, needs a credential not listed app.mako.ai
io.github.manavaga/web3-signals
https://web3-signals-api-production.up.railway.app/mcp/sse
bad request not listed web3-signals-api-production.up.railway.app
io.github.manavaga/web3-signals
https://web3-signals-api-production.up.railway.app/mcp/stream
answered, not MCP not listed web3-signals-api-production.up.railway.app
io.github.mangoappstudio/mdedit
https://mcp.mdedit.ai/mcp
gated, needs a credential not listed mcp.mdedit.ai
io.github.manuelrmz123/chiwawa
https://chiwawa.vercel.app/mcp/sse
bad request not listed chiwawa.vercel.app
io.github.mapbox/mcp-devkit-server
https://mcp-devkit.mapbox.com/mcp
gated, needs a credential not listed mcp-devkit.mapbox.com
io.github.mapbox/mcp-server
https://mcp.mapbox.com/mcp
gated, needs a credential not listed mcp.mapbox.com
io.github.mapizarro1/foragex402
https://foragex402.tablint.dev/mcp
unreachable not listed foragex402.tablint.dev
io.github.marckohlbrugge/sessy
https://api.sessy.do/mcp
gated, needs a credential not listed api.sessy.do
io.github.marketscore/marketscore-direct-mcp
https://app.marketscore.ru/api/mcp
gated, needs a credential not listed app.marketscore.ru
io.github.markhahnel/postcodeproperty
https://postcodeproperty.ai/mcp
gated, needs a credential not listed postcodeproperty.ai
io.github.marksignals/the-ultimate-critic
https://ultimate-critic.fly.dev/mcp
unreachable not listed ultimate-critic.fly.dev
io.github.marmotdata/marmot
https://{marmot_host}/api/v1/mcp
unreachable not listed {marmot_host}
io.github.martc03/business-entity
https://business-entity-mcp.apify.actor/mcp
404 not listed business-entity-mcp.apify.actor
io.github.martc03/competitive-intel
https://competitive-intel-mcp.apify.actor/mcp
404 not listed competitive-intel-mcp.apify.actor
io.github.martc03/court-records
https://court-records-mcp.apify.actor/mcp
404 not listed court-records-mcp.apify.actor
io.github.martc03/cybersecurity-vuln
https://cybersecurity-vuln-mcp.apify.actor/mcp
404 not listed cybersecurity-vuln-mcp.apify.actor
io.github.martc03/environmental-compliance
https://environmental-compliance-mcp.apify.actor/mcp
404 not listed environmental-compliance-mcp.apify.actor
io.github.martc03/federal-financial-intel
https://federal-financial-intel-mcp.apify.actor/mcp
404 not listed federal-financial-intel-mcp.apify.actor
io.github.martc03/gov-contracts
https://gov-contracts-mcp.apify.actor/mcp
404 not listed gov-contracts-mcp.apify.actor
io.github.martc03/grant-finder
https://grant-finder-mcp.apify.actor/mcp
404 not listed grant-finder-mcp.apify.actor
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