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.
| server | result | tools | host |
|---|---|---|---|
| io.github.nath-abhishek/cardmind-mcp
https://api.cardmind.app/mcp |
gated, needs a credential | not listed | api.cardmind.app |
| io.github.nauman/builtonrails
https://builtonrails.com/mcp/sse |
JSON-RPC error | not listed | builtonrails.com |
| io.github.navshainc/noshup
https://api.noshup.ca/mcp |
answered, not MCP | not listed | api.noshup.ca |
| io.github.navshainc/noshup-public
https://api.noshup.ca/mcp-public |
answered, not MCP | not listed | api.noshup.ca |
| io.github.naymEvg/health-mcp
https://{host}/mcp-health |
unreachable | not listed | {host} |
| io.github.nazar256/memheaven
https://{worker_domain}/mcp |
unreachable | not listed | {worker_domain} |
| io.github.ndrysdal-byte/prediction-friction-tracker
https://prediction-friction-tracker-production.up.railway.app/mcp/ |
answered, not MCP | not listed | prediction-friction-tracker-production.up.railway.app |
| io.github.neddes/pieterpost-mcp
https://pieterpost.com/mcp/ |
JSON-RPC error | not listed | pieterpost.com |
| io.github.negm17111995/circlfi-mcp
https://circlfi.com/mcp |
answered, not MCP | not listed | circlfi.com |
| io.github.nelsonsantryhkd/terrarium
https://www.tryterrarium.com/api/mcp |
gated, needs a credential | not listed | www.tryterrarium.com |
| sprintflint
https://mcp.sprintflint.com |
answers a handshake | not listed | mcp.sprintflint.com |
| io.github.nerdydata/mcp
https://mcp.nerdydata.com/mcp |
gated, needs a credential | not listed | mcp.nerdydata.com |
| io.github.netdata/mcp-server
https://app.netdata.cloud/api/v1/mcp |
gated, needs a credential | not listed | app.netdata.cloud |
| io.github.netifymarketplace/bt-reseller
https://www.netify.co.uk/resell/bt-business-services/mcp/ |
answered, not MCP | not listed | www.netify.co.uk |
| io.github.neuralmint/imagepay-mcp
https://making-absurd-felt-tip.ngrok-free.dev/mcp |
404 | not listed | making-absurd-felt-tip.ngrok-free.dev |
| io.github.neus/neus-mcp
https://mcp.neus.network/mcp |
gated, needs a credential | not listed | mcp.neus.network |
| io.github.nevent-dev/mcp-nevent
https://mcp.nevent.ai/mcp |
404 | not listed | mcp.nevent.ai |
| io.github.newrelic-partners/mcp-server
https://mcp.newrelic.com/mcp/ |
gated, needs a credential | not listed | mcp.newrelic.com |
| io.github.newrelic-partners/mcp-server
https://mcp.eu.newrelic.com/mcp/ |
gated, needs a credential | not listed | mcp.eu.newrelic.com |
| io.github.nexus-api-lab/chrono-mcp
https://chrono-mcp.dokasukadon.workers.dev/mcp |
404 | not listed | chrono-mcp.dokasukadon.workers.dev |
| io.github.nexus-api-lab/codebook-mcp
https://codebook-mcp.dokasukadon.workers.dev/mcp |
404 | not listed | codebook-mcp.dokasukadon.workers.dev |
| io.github.nexus-api-lab/digest-mcp
https://digest-mcp.dokasukadon.workers.dev/mcp |
404 | not listed | digest-mcp.dokasukadon.workers.dev |
| io.github.nexus-api-lab/ident-mcp
https://ident-mcp.dokasukadon.workers.dev/mcp |
404 | not listed | ident-mcp.dokasukadon.workers.dev |
| io.github.nexus-api-lab/nexus-mcp
https://mcp.nexus-api-lab.com/ |
unreachable | not listed | mcp.nexus-api-lab.com |
| io.github.nexus-api-lab/textops-mcp
https://textops-mcp.dokasukadon.workers.dev/mcp |
404 | not listed | textops-mcp.dokasukadon.workers.dev |
| io.github.nexus-mcp-infra/erc8004-agent-liveness
https://erc8004-agent-liveness-325572559480.us-central1.run.app/mcp |
answered, not MCP | not listed | erc8004-agent-liveness-325572559480.us-central1.run.app |
| io.github.nexus-mcp-infra/new-x402-listings-feed
https://new-x402-listings-feed-325572559480.us-central1.run.app/mcp |
answered, not MCP | not listed | new-x402-listings-feed-325572559480.us-central1.run.app |
| io.github.nexus-mcp-infra/onchain-activity-index
https://onchain-activity-index-325572559480.us-central1.run.app/mcp |
answered, not MCP | not listed | onchain-activity-index-325572559480.us-central1.run.app |
| io.github.nexus-mcp-infra/public-tenders-es-eu
https://public-tenders-es-eu-325572559480.us-central1.run.app/mcp |
answered, not MCP | not listed | public-tenders-es-eu-325572559480.us-central1.run.app |
| io.github.nexus-mcp-infra/transfer-entropy-api-sdk
https://test.railway.app |
404 | not listed | test.railway.app |
| io.github.nexus-mcp-infra/x402-receipt-verifier
https://x402-receipt-verifier-325572559480.us-central1.run.app/mcp |
answered, not MCP | not listed | x402-receipt-verifier-325572559480.us-central1.run.app |
| io.github.nexusforge-tools/mcp-eu-finance
https://api.nexusforge.tools/sse |
answered, not MCP | not listed | api.nexusforge.tools |
| io.github.nexusforge-tools/mcp-eu-finance
https://api.nexusforge.tools/mcp/eu-finance/sse |
404 | not listed | api.nexusforge.tools |
| io.github.nexusrun/nexus-ai
https://api.zollo.live/mcp |
unreachable | not listed | api.zollo.live |
| io.github.nicholasoxford/bible-glide
https://api.bibleglide.com/mcp |
gated, needs a credential | not listed | api.bibleglide.com |
| io.github.nicofains1/agentic-ads
https://agentic-ads.onrender.com/mcp |
server error | not listed | agentic-ads.onrender.com |
| io.github.nicofains1/agentic-ads
https://agentic-ads-production.up.railway.app/mcp |
404 | not listed | agentic-ads-production.up.railway.app |
| io.github.nicolanegro02nn-sketch/trustrail
https://trustrail-ebon.vercel.app/mcp |
gated, needs a credential | not listed | trustrail-ebon.vercel.app |
| io.github.nicolascoutureau/kinopipe
https://kinopipe.com/mcp |
gated, needs a credential | not listed | kinopipe.com |
| io.github.nigelcox98/breaking-changes
https://agentdataapi.onrender.com/mcp |
answered, not MCP | not listed | agentdataapi.onrender.com |
| io.github.nikhilbhima/tabula
https://www.tabula360.com/api/mcp/mcp |
gated, needs a credential | not listed | www.tabula360.com |
| io.github.nikhilgogulwar/universalbench
https://universalbench-mcp.penantiaglobal.workers.dev/u/{api_key} |
gated, needs a credential | not listed | universalbench-mcp.penantiaglobal.workers.dev |
| io.github.ninefiveonefive/autobus
https://witness.holoweave.org/mcp |
bad request | not listed | witness.holoweave.org |
| io.github.ninefiveonefive/citation-check
https://check.holoweave.org/mcp |
bad request | not listed | check.holoweave.org |
| io.github.nirholas/ibm-x402-mcp-remote
https://three.ws/api/ibm-mcp |
gated, needs a credential | not listed | three.ws |
| io.github.nirholas/three.ws
https://three.ws/api/mcp |
gated, needs a credential | not listed | three.ws |
| io.github.nirholas/threews-3d-studio
https://three.ws/api/mcp-3d |
gated, needs a credential | not listed | three.ws |
| io.github.nirholas/threews-agent
https://three.ws/api/mcp-agent |
gated, needs a credential | not listed | three.ws |
| io.github.nirholas/threews-x402-bazaar
https://three.ws/api/mcp-bazaar |
gated, needs a credential | not listed | three.ws |
| io.github.nish3451/site-rep
https://siterep.net/api/mcp |
gated, needs a credential | not listed | siterep.net |