cyon MCP Server

by cyon Your server? Claim it

answering

cyon is answering right now. Last checked 13 min ago. Last commit 14 Oct 2026.

Build and publish websites on cyon hosting: sites, domains, databases, HTTPS and deployment.

Uptime history 4 days of history · worst day 98%

4 days agonow

100.0%

Uptime 24h

91 of 91 checks

—

Tools

hidden behind auth

152 ms

Response time

average over 24h

Stars

last commit 14 Oct 2026

cyon does not always answer

Over the last week it answered 99.4% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://mcp.cyon.ch/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.cyon.ch/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://mcp.cyon.ch/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.cyon.ch/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.cyon.ch/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.cyon.ch/mcp	streamable-http	sign-in	153 ms	13 min ago

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cyon — questions

Answers built from our own checks of this server.

Why is there no tool list for cyon?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is cyon working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 152 ms. The bar chart above shows every period we have measured.

How do I connect cyon?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.

How do you sign in to cyon?

No API key is involved. cyon answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.

How fast is cyon?

It answers our handshake in 152 ms on average, which is faster than 74% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is cyon open source?

Yes — it is published under the MIT licence and 2 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.