stitch-mcp-generate-variants

To generate design variants, you need a valid Stitch project ID and a source screen ID. These identifiers allow the variant API to locate your existing UI and apply configurable variation parameters to produce alternative layouts.

Yes, you can customize exactly which design aspects to modify, including layout, color scheme, images, typography, and content. You can also configure the creative range to control how much new variants deviate from the original design.

You can generate up to 5 alternative screen designs in a single request. The variant count is capped at 5 to ensure consistent, high-quality design outputs while eliminating manual iteration work for your team.

Generating Stitch UI variants through the dedicated API saves time by using 1 API call instead of 3 required for text-prompt generation. This native variant generation produces faster, more consistent results for A/B testing and design exploration.

Before creating alternative layouts for A/B testing, you need an existing Stitch-generated screen and its corresponding source screen ID. You must also define your targeted design aspects and variation parameters to execute the API call successfully.