How to Use the Caddy Server MCP in Claude

Q: How do I configure Caddy Server routing rules using Claude Desktop?

You ask your agent to write a new rule, and it uses adaptconfig to convert your Caddyfile syntax into JSON. Once validated, the agent runs loadconfig to apply the routing changes to your running server instantly.

Q: Can Claude Desktop monitor Caddy Server upstream backends in real time?

Yes, Claude Desktop queries getupstreams to check which backend targets are active, failing, or slow. Your agent can read this raw status data to help you troubleshoot load balancing issues during your chat session.

Q: How does this MCP Server handle Caddy Server certificate errors in Claude Desktop?

The server exposes getpkicacerts so Claude Desktop can fetch the active certificate chain. Your agent inspects these certificates to find expiration dates or trust issues, saving you from running manual openssl commands.

Q: Can I gracefully shut down my web server using this tool?

Yes, your agent can call stopserver to trigger a clean shutdown of the process. This is useful when you are tearing down a local development environment directly from the chat.

Control Caddy Server routing, certificates, and upstreams directly from Claude Desktop without touching a terminal.

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Setup Caddy Server with Claude Desktop

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Live Caddy Server config edits via Claude Desktop

The `load_config` tool lets your agent swap out your active Caddy Server JSON or Caddyfile configuration without restarting the process. This MCP Server runs via local stdio to pipe these changes directly to your running Caddy instance, meaning you can test routing changes instantly inside Claude Desktop. If you want to make surgical updates instead of full rewrites, your Claude Desktop agent can call `replace_config` or `insert_config` to modify specific JSON paths in your Caddy config. You get immediate feedback in the chat window, letting you debug Caddyfile syntax errors before they hit your live Caddy Server.

Inspect upstream health in Claude Desktop

The `get_upstreams` tool exposes the real-time status of your Caddy Server proxy backends directly to Claude Desktop. When a backend service starts failing, your Claude Desktop agent can pull this data to pinpoint which upstream target is offline. Combine this with `get_metrics` to grab Prometheus-formatted performance data from Caddy Server during a debugging session. Your Claude Desktop agent analyzes the raw metrics to explain why requests are piling up or why Caddy is throwing 502 gateway errors.

Manage local PKI certs using this MCP Server

The `get_pki_ca` and `get_pki_ca_certs` tools give your Claude Desktop agent direct access to Caddy Server's internal certificate authority details. This MCP Server lets Claude Desktop inspect your Caddy TLS setup without you having to run shell commands in a separate terminal. If your local Caddy Server site throws SSL warnings, your Claude Desktop agent calls these tools to verify the active certificate chain. You can diagnose local trust issues inside Claude Desktop because the agent sees the exact CA configuration Caddy Server is presenting.

Setup guide

Set up Caddy Server MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Caddy Server MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Caddy Server MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under caddy-server-mcp.

json

{
  "mcpServers": {
    "caddy-server-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Caddy Server. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Caddy Server MCP in Claude Desktop

You ask your agent to write a new rule, and it uses `adapt_config` to convert your Caddyfile syntax into JSON. Once validated, the agent runs `load_config` to apply the routing changes to your running server instantly.

Yes, Claude Desktop queries `get_upstreams` to check which backend targets are active, failing, or slow. Your agent can read this raw status data to help you troubleshoot load balancing issues during your chat session.

The server exposes `get_pki_ca_certs` so Claude Desktop can fetch the active certificate chain. Your agent inspects these certificates to find expiration dates or trust issues, saving you from running manual openssl commands.

Yes, your agent can call `stop_server` to trigger a clean shutdown of the process. This is useful when you are tearing down a local development environment directly from the chat.

Your Caddy configurations, PKI certificates, and internal metrics never leave your local machine. This MCP Server communicates with Claude Desktop over a local stdio pipe, meaning no external third-party servers ever see your routing rules.

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