About cyon
cyon is a Claude Code and Codex plugin for managing cyon-hosted websites. Its skills connect the assistant to hosting tools for setting up sites and related services, then publishing them.
Key features
- 01Create subdomains, databases, and certificates
- 02Publish websites
- 03Select which hostings the assistant can access
- 04Skills for cyon hosting workflows
Use cases
- 01Set up a subdomain for a site
- 02Create a database or HTTPS certificate
- 03Publish a site on cyon hosting
MCP support
The plugin connects Claude Code and Codex to the cyon MCP server. The assistant can inspect hostings and create subdomains, databases, certificates, and publish sites.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://mcp.cyon.ch/mcpclaude mcp add --transport http ch-cyon https://mcp.cyon.ch/mcp{"mcpServers":{"ch-cyon":{"type":"http","url":"https://mcp.cyon.ch/mcp"}}}Open in Cursor{"servers":{"ch-cyon":{"type":"http","url":"https://mcp.cyon.ch/mcp"}}}Open in VS Code{"mcpServers":{"ch-cyon":{"type":"http","url":"https://mcp.cyon.ch/mcp"}}}{"mcpServers":{"ch-cyon":{"serverUrl":"https://mcp.cyon.ch/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
Details
From the project READMEcyon plugin for Claude Code and Codex
Skills that know what cyon hosting runs, and the connection to the cyon MCP server, through which the assistant reads your hostings and creates subdomains, databases and certificates and publishes a site.
Installing
Claude Code:
claude plugin marketplace add cyon/cyon-plugin
claude plugin install cyon@cyon
Codex:
codex plugin marketplace add cyon/cyon-plugin
codex plugin add cyon@cyon
codex mcp login cyon
At the first tool call, or at codex mcp login, your browser opens my.cyon. Log in and approve
the connection, and the tools appear. You choose there which hostings the assistant may reach.
Contents
The skills are in plugin/skills/, what changed in each version is in plugin/CHANGELOG.md.
This repository is published from cyon's own repository, so pull requests are not merged here. Questions and problems go to cyon support.
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.