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.TranThienTrong/asset-auto-generator
https://TranThienTrong.github.io/mcp/asset-auto-generator
answered, not MCP not listed TranThienTrong.github.io
io.github.Tsubaki414/toolfi
https://web-ten-alpha-81.vercel.app/api/mcp
server error not listed web-ten-alpha-81.vercel.app
io.github.Tuurio/tuurio-id
https://{tenant}.id.tuurio.com/mcp
unreachable not listed {tenant}.id.tuurio.com
io.github.Un3x/ai-success-story
https://ai-success-story-20f19ed7769b.herokuapp.com/mcp
server error not listed ai-success-story-20f19ed7769b.herokuapp.com
io.github.UnMarkdown/mcp-server
https://unmarkdown.com/api/mcp
gated, needs a credential not listed unmarkdown.com
io.github.UnbearableDev/docker-compose-audit
https://unbearable-dev--docker-compose-audit.apify.actor/mcp
gated, needs a credential not listed unbearable-dev--docker-compose-audit.apify.actor
io.github.UnbearableDev/dockerfile-audit
https://unbearable-dev--dockerfile-audit.apify.actor/mcp
gated, needs a credential not listed unbearable-dev--dockerfile-audit.apify.actor
io.github.UnbearableDev/github-actions-audit
https://unbearable-dev--github-actions-audit.apify.actor/mcp
gated, needs a credential not listed unbearable-dev--github-actions-audit.apify.actor
io.github.UnbearableDev/hu-postcode-validator
https://unbearable-dev--hu-postcode-validator.apify.actor/mcp
gated, needs a credential not listed unbearable-dev--hu-postcode-validator.apify.actor
io.github.UnbearableDev/iac-audit-pack
https://unbearable-dev--iac-audit-pack.apify.actor/mcp
gated, needs a credential not listed unbearable-dev--iac-audit-pack.apify.actor
io.github.UnbearableDev/k8s-manifest-audit
https://unbearable-dev--k8s-manifest-audit.apify.actor/mcp
gated, needs a credential not listed unbearable-dev--k8s-manifest-audit.apify.actor
io.github.VAAS-X/vaasxmcp
https://mcp.vaasx.com/mcp
gated, needs a credential not listed mcp.vaasx.com
io.github.VCoder25/vugola-mcp
https://www.vugolaai.com/api/mcp
gated, needs a credential not listed www.vugolaai.com
io.github.VZezelin/signal-lab-apify-tools
https://mcp.apify.com?tools=signal_lab/amazon-price-tracker,signal_lab/google-autocomplete-keywords,signal_lab/website-to-markdown-crawler,signal_lab/youtube-transcript-scraper,signal_lab/reddit-search-comments,signal_lab/job-vacancy-scraper,signal_lab/restaurant-menu-extractor
gated, needs a credential not listed mcp.apify.com
io.github.Vaquill-AI/canlii-mcp
https://canlii-mcp.vaquill.ai/mcp
gated, needs a credential not listed canlii-mcp.vaquill.ai
io.github.Vektoris-AI/proofetch
https://proofetch-vektoris-ai-workflows.vercel.app/mcp
gated, needs a credential not listed proofetch-vektoris-ai-workflows.vercel.app
io.github.Velaris-CSM/velaris-intelligence
https://gx7rt55cmrb2ilws3nrl5hpvli0lvzxg.lambda-url.eu-west-2.on.aws/
gated, needs a credential not listed gx7rt55cmrb2ilws3nrl5hpvli0lvzxg.lambda-url.eu-west-2.on.aws
io.github.VeloGerber/AiEGIS
https://aiegis.ie/mcp
404 not listed aiegis.ie
io.github.VeloGerber/Grid
https://aiegis.ie/grid/mcp
404 not listed aiegis.ie
io.github.Verifa-Solutions/verifa
https://api.withverifa.com/mcp
answered, not MCP not listed api.withverifa.com
io.github.VerifiedDR/verifieddr
https://verifieddr.com/api/mcp
gated, needs a credential not listed verifieddr.com
io.github.Vessark/business-days-mcp
https://vessark.com/mcp
unreachable not listed vessark.com
io.github.VessellTech/cdf.mcp
https://mcp.cdf.finance/mcp
gated, needs a credential not listed mcp.cdf.finance
io.github.VestOSAI/vest-mcp
https://mcp.getvest.ai/mcp
JSON-RPC error not listed mcp.getvest.ai
io.github.VibeTechnologies/vibe-mcp
https://relay.api.vibebrowser.app/mcp/{session_id}
gated, needs a credential not listed relay.api.vibebrowser.app
io.github.Vist233/firstdata
https://firstdata.deepminer.com.cn/mcp
gated, needs a credential not listed firstdata.deepminer.com.cn
io.github.Vohlsyr/chainscope
https://chainsscope.duckdns.org/mcp/
answered, not MCP not listed chainsscope.duckdns.org
io.github.Vohlsyr/concordance
https://concordancehq.duckdns.org/mcp/
answered, not MCP not listed concordancehq.duckdns.org
io.github.Vohlsyr/trading-strategy-data
https://strategysignals.duckdns.org/mcp/
answered, not MCP not listed strategysignals.duckdns.org
io.github.Vohlsyr/trustfetch
https://trustfetch.duckdns.org/mcp/
answered, not MCP not listed trustfetch.duckdns.org
Vonage Documentation MCP Server
https://documentation-mcp.vonage.dev/mcp
answers a handshake not listed documentation-mcp.vonage.dev
io.github.WCAG-Compliance/mcp
https://mcp.wcagc.com/mcp
gated, needs a credential not listed mcp.wcagc.com
io.github.Wandersonjack/avocado
https://www.avocadoai.co/api/mcp
gated, needs a credential not listed www.avocadoai.co
io.github.Wandersonjack/avocado
https://mcp.avocadoai.co
answered, not MCP not listed mcp.avocadoai.co
io.github.WattCoin-Org/wattcoin-mcp-server
https://wattcoin-mcp-server.wattcoin.workers.dev/mcp
server error not listed wattcoin-mcp-server.wattcoin.workers.dev
io.github.WattCoin-Org/wattcoin-mcp-server
https://wattcoin-mcp-server.wattcoin.workers.dev/sse
404 not listed wattcoin-mcp-server.wattcoin.workers.dev
io.github.WeeCi/mektup-mcp
https://mcp.usemektup.com/mcp
gated, needs a credential not listed mcp.usemektup.com
io.github.WellApp-ai/well-mcp
https://api.well.app/v1/mcp/sse
404 not listed api.well.app
io.github.WellApp-ai/well-mcp
https://api.well.app/v1/mcp
404 not listed api.well.app
io.github.Wenyveo/escrow
https://pactlayer.io/mcp
unreachable not listed pactlayer.io
io.github.Whawi/oracle
https://oracle.whaber.ai/mcp/v1
unreachable not listed oracle.whaber.ai
io.github.Which-Model/whichmodel
https://whichmodel.dev/mcp
answered, not MCP not listed whichmodel.dev
io.github.WillNigri/crowterminal
https://api.crowterminal.com/api/agent
404 not listed api.crowterminal.com
io.github.WingedGuardian/agent-tools
https://tools.beethoven2024.com/mcp
server error not listed tools.beethoven2024.com
io.github.WizzyDev/trenchfu-mcp
https://mcp.trenchfu.com
unreachable not listed mcp.trenchfu.com
io.github.Wokelo-AI/wokelo-mcp-server
https://mcp.wokelo.ai/mcp
unreachable not listed mcp.wokelo.ai
io.github.Wolfe-Jam/claude-faf-mcp
https://claude-faf-mcp.vercel.app/sse
answered, not MCP not listed claude-faf-mcp.vercel.app
io.github.Wolfe-Jam/grok-faf-mcp
https://grok-faf-mcp.vercel.app/sse
answered, not MCP not listed grok-faf-mcp.vercel.app
io.github.Wolflangis/video-loom
https://app.videoloom.studio/mcp
gated, needs a credential not listed app.videoloom.studio
io.github.Workofarttattoo/qulab-infinite-mcp
https://workofarttattoo-qulab-mcp.azurewebsites.net/mcp
unreachable not listed workofarttattoo-qulab-mcp.azurewebsites.net
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