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 |
|---|---|---|---|
| pipeworx-gateway
https://gateway.pipeworx.io/outlook-calendar/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/outlook-mail/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/pangaea/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/paypal/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/pipedrive/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/pypi-stats/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/quickbooks/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/rdap/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/reactome/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/regulations-gov/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/repology/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/rick-and-morty/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/rubygems/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/samgov/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/sarb-za/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/sbir/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/seo-backlinks/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/septa/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/shopify/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/slack_connect/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/solscan/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/stackexchange/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/stat-ee/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/string-db/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/the-guardian/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/uk-contracts/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/uk-gazette/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/ukri-gtr/mcp |
answers a handshake | 36 | gateway.pipeworx.io |
| Pa1m SEO
https://seo.hypa1m.xyz/mcp |
answers a handshake | 36 | seo.hypa1m.xyz |
| kolmo-construction
https://www.kolmo.io/mcp |
answers a handshake | 36 | www.kolmo.io |
| firmaradar-mcp
https://mcp.firmaradar.no/mcp |
answers a handshake | 36 | mcp.firmaradar.no |
| calculate-nz
https://mcp.calculate.co.nz/mcp |
answers a handshake | 36 | mcp.calculate.co.nz |
| Nullary
https://mcp.nullary.ai/mcp |
answers a handshake | 35 | mcp.nullary.ai |
| mart402
https://mart402.com/mcp |
answers a handshake | 35 | mart402.com |
| com.sssnack/sssnack
https://sssnack.com/api/mcp |
answers a handshake | 35 | sssnack.com |
| seneschal-data
https://mcp.seneschal.space/ |
answers a handshake | 35 | mcp.seneschal.space |
| arcadia-finance
https://mcp.arcadia.finance/mcp |
answers a handshake | 35 | mcp.arcadia.finance |
| caelus
https://www.ephemengine.com/api/mcp |
answers a handshake | 35 | www.ephemengine.com |
| mcp-ai
https://api.mcp.ai/p_google_ads |
answers a handshake | 35 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_supabase |
answers a handshake | 35 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_youtube |
answers a handshake | 35 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_zapsign |
answers a handshake | 35 | api.mcp.ai |
| openFlowAPI
https://openflowmcp.com/mcp |
answers a handshake | 35 | openflowmcp.com |
| uk-legal-mcp
https://uk-legal-mcp.fly.dev/mcp |
answers a handshake | 35 | uk-legal-mcp.fly.dev |
| pipeworx-gateway
https://gateway.pipeworx.io/abgeordnetenwatch/mcp |
answers a handshake | 35 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/adsb/mcp |
answers a handshake | 35 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/ai-incident-db/mcp |
answers a handshake | 35 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/airnow/mcp |
answers a handshake | 35 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/alphafold/mcp |
answers a handshake | 35 | gateway.pipeworx.io |
| pipeworx-gateway
https://gateway.pipeworx.io/amtrak/mcp |
answers a handshake | 35 | gateway.pipeworx.io |