> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.vapi.ai/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.vapi.ai/_mcp/server.

1. **XAi Model Support**: You can now use xAI's `grok-beta` model when creating or updating an assistant, and specify your API credentials from the [xAI console](https://console.x.ai/) in the [updated Provider Credentials page](https://dashboard.vapi.ai/keys). The list of call ended reasons has been updated to include xAI-specific errors.

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