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

# Interface Package

The `data-designer` package provides the top-level user-facing package surface. This section covers `data_designer.interface`, which contains `DataDesigner`, persisted dataset creation results, and interface-level errors.

This package sits above engine and config. `DataDesigner` accepts Data Designer configs, calls the runtime layer, and returns preview or persisted creation results.

Start with [data\_designer](data-designer) for previewing, creating, and inspecting datasets from a config. Use [results](results) for the object returned by persisted dataset creation, and [errors](errors) for exceptions surfaced at the public API boundary.