What Is a Server Slug?

A server's slug is its short, unique, URL-safe identifier in Arthur MCP — lowercase letters, numbers, and hyphens only. It's auto-generated from the server's name when you create it, and it's what actually appears in the server's public URLs, instead of an internal database ID.

The slug is what makes a server's public documentation link and MCP endpoint URL readable — for example .../mcp-swagger/my-billing-api instead of a UUID. It has to be unique across every server on the instance.

Learn more: How to Manage Your Server Slug.