> ## Documentation Index
> Fetch the complete documentation index at: https://docs.userintuition.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Authentication

> How the User Intuition MCP server authenticates: ui_sk_ API keys for stdio, OAuth for HTTP.

The server has two transports with two auth methods.

## stdio (Claude Desktop, Cursor, Claude Code, VS Code)

Set `USERINTUITION_API_KEY` to a `ui_sk_...` key from **Settings → API Keys**. The key
is passed per request to the User Intuition backend. There are no scopes — a key has
the full access of the account that created it.

## Streamable HTTP (ChatGPT)

The hosted server at `https://mcp.userintuition.ai/mcp` uses OAuth, auto-discovered by
the client. No key handling required.

## Not supported

Webhooks and OAuth credential-exchange callbacks are not part of the MCP surface.