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.carrasquelalex1/hipocampo
https://alexbell1-hipocampo-mcp.hf.space/mcp
answered, not MCP not listed alexbell1-hipocampo-mcp.hf.space
io.github.carrasquelalex1/webscrape-mcp
https://webscrape-mcp.onrender.com
404 not listed webscrape-mcp.onrender.com
io.github.carruda-Global/ecosystem-aec-erp
https://engenheiro-producao-ai.onrender.com/mcp/erp/sse
404 not listed engenheiro-producao-ai.onrender.com
io.github.carruda-Global/ecosystem-aec-esg
https://engenheiro-producao-ai.onrender.com/mcp/esg/sse
404 not listed engenheiro-producao-ai.onrender.com
io.github.carruda-Global/ecosystem-aec-regulatory
https://engenheiro-producao-ai.onrender.com/mcp/regulatory/sse
404 not listed engenheiro-producao-ai.onrender.com
io.github.carson-see/arkova-verification
https://edge.arkova.ai/mcp
gated, needs a credential not listed edge.arkova.ai
io.github.carsxe/carsxe-mcp
https://mcp.carsxe.com/mcp
gated, needs a credential not listed mcp.carsxe.com
io.github.carterchencc/nomas
https://mcp.nomas.fyi/mcp
gated, needs a credential not listed mcp.nomas.fyi
io.github.cartoonitunes/inlay
https://inlay.dev/api/mcp/{site_key}/sse
answered, not MCP not listed inlay.dev
io.github.cartoonitunes/inlay
https://inlay.dev/api/mcp/{site_key}
answered, not MCP not listed inlay.dev
io.github.cassarebaser/steve-filter
https://46.101.199.72.nip.io/mcp
unreachable not listed 46.101.199.72.nip.io
io.github.catalo-ai/catalo
https://catalo.ai/mcp
gated, needs a credential not listed catalo.ai
io.github.cbolgiano/mochipdf
https://mochipdf.com/mcp
gated, needs a credential not listed mochipdf.com
io.github.ccedacero/nyc-property-intel
https://nyc-property-intel-production.up.railway.app/mcp
gated, needs a credential not listed nyc-property-intel-production.up.railway.app
io.github.cchurctrip/verity
https://mcp.verityskills.com/mcp
gated, needs a credential not listed mcp.verityskills.com
io.github.cesco345/capital-equipment
https://us-central1-capital-equipment-dev.cloudfunctions.net/mcpServer/mcp
404 not listed us-central1-capital-equipment-dev.cloudfunctions.net
io.github.cesteral/amazon-dsp-mcp
https://{host}/amazon-dsp-mcp/mcp
unreachable not listed {host}
io.github.cesteral/cm360-mcp
https://{host}/cm360-mcp/mcp
unreachable not listed {host}
io.github.cesteral/dbm-mcp
https://{host}/dbm-mcp/mcp
unreachable not listed {host}
io.github.cesteral/dv360-mcp
https://{host}/dv360-mcp/mcp
unreachable not listed {host}
io.github.cesteral/gads-mcp
https://{host}/gads-mcp/mcp
unreachable not listed {host}
io.github.cesteral/linkedin-mcp
https://{host}/linkedin-mcp/mcp
unreachable not listed {host}
io.github.cesteral/meta-mcp
https://{host}/meta-mcp/mcp
unreachable not listed {host}
io.github.cesteral/msads-mcp
https://{host}/msads-mcp/mcp
unreachable not listed {host}
io.github.cesteral/pinterest-mcp
https://{host}/pinterest-mcp/mcp
unreachable not listed {host}
io.github.cesteral/sa360-mcp
https://{host}/sa360-mcp/mcp
unreachable not listed {host}
io.github.cesteral/snapchat-mcp
https://{host}/snapchat-mcp/mcp
unreachable not listed {host}
io.github.cesteral/tiktok-mcp
https://{host}/tiktok-mcp/mcp
unreachable not listed {host}
io.github.cesteral/ttd-mcp
https://{host}/ttd-mcp/mcp
unreachable not listed {host}
io.github.chaband-ops/iskra-reputation
https://api.iskra-bot.xyz/mcp
unreachable not listed api.iskra-bot.xyz
io.github.chadbot0x/apiforchads
https://mcp.apiforchads.com/mcp
server error not listed mcp.apiforchads.com
io.github.chaehomie/aether-studio
https://knoll-api-d9hkgrape3dtadgy.z03.azurefd.net/mcp
404 not listed knoll-api-d9hkgrape3dtadgy.z03.azurefd.net
io.github.checkout/mcp
https://mcp.checkout.com
gated, needs a credential not listed mcp.checkout.com
io.github.cheevahagadog/forency
https://forency.io/api/mcp
gated, needs a credential not listed forency.io
io.github.chenlidongorg/whiteboard
https://whiteboardappforchatgpt.endlessai.org/mcp
answered, not MCP not listed whiteboardappforchatgpt.endlessai.org
io.github.chenyuan35/reasoning-commons
https://aineedhelpfromotherai.com/api/mcp
404 not listed aineedhelpfromotherai.com
trueai
https://www.shiflowai.cloud/mcp
answers a handshake not listed www.shiflowai.cloud
io.github.chenyujing1234-netizen/trueai
https://www.shiflowai.cloud/mcp-sse/sse
answered, not MCP not listed www.shiflowai.cloud
io.github.chetparker/uk-data-api
https://web-production-18a32.up.railway.app/mcp/sse
bad request not listed web-production-18a32.up.railway.app
io.github.chriphil70/clipforge
https://budding-retrograde--clipforge.apify.actor/mcp
gated, needs a credential not listed budding-retrograde--clipforge.apify.actor
io.github.chris-bsn/journalize
https://journalize.dev/mcp-deprecated-do-not-use
404 not listed journalize.dev
io.github.christophjonetzko-stack/kranvergleich
https://mcp-kranvergleich.onrender.com/sse
answered, not MCP not listed mcp-kranvergleich.onrender.com
io.github.cicerosmoura-alt/backstoryid-mcp
https://mcp.backstoryid.com/mcp
gated, needs a credential not listed mcp.backstoryid.com
io.github.cicerosmoura-alt/goloop-mcp
https://mcp.goloop.com.br/mcp
gated, needs a credential not listed mcp.goloop.com.br
io.github.cinderwright-ai/cinderwright-api
https://api.ideafactorylab.org
404 not listed api.ideafactorylab.org
io.github.civis-labs/civis
https://mcp.civis.run/mcp
unreachable not listed mcp.civis.run
io.github.clarilayer/clarilayer
https://clarilayer.com/api/mcp/mcp
gated, needs a credential not listed clarilayer.com
io.github.clayton/docdiffai
https://docdiffai.com/mcp
gated, needs a credential not listed docdiffai.com
io.github.clipia-ai/clipia-mcp
https://mcp.clipia.ai/mcp
gated, needs a credential not listed mcp.clipia.ai
io.github.clk1st/mh-fin-mcp
https://api.quant.metrichub.app/mcp/sse
gated, needs a credential not listed api.quant.metrichub.app
previous page 277 next