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Overview

Google Stitch is a generative UI tool that lets you create, edit, and iterate on web UI designs (screens) from natural language prompts. It outputs screenshots and production-ready HTML/CSS code.

How to Add Google Stitch

1

Get Your Stitch API Key

  1. Go to stitch.withgoogle.com/settings
  2. Copy your API key
2

Add to Civic

Add the Google Stitch server to your Civic environment through the server directory. You will be prompted to provide your API key.
3

Test Connection

Start with "Create a new Stitch project called 'My App'" to set up a container for your screens, then try generating a screen to verify everything works.

What You Can Do

Screen Generation

Generate new UI screens from text prompts with automatic design system creation

Screen Editing

Make targeted changes to existing screens — colors, layouts, components, content

Design Variants

Generate layout, color scheme, typography, and content variants of existing screens

Project Management

Create and manage projects, list and retrieve screens with screenshots and HTML

Use Cases

Creating & Managing Projects

  • New Project: "Create a new Stitch project called 'My App'"
  • List Projects: "List all my Stitch projects"
  • Project Details: "Get the details of project ID 10337927055765204329"

Generating Screens

  • Dashboard: "Generate a dark-themed dashboard for a SaaS product with recent activity, connected integrations, and quick action buttons"
  • Login Screen: "Create a mobile login screen with email/password fields and a Google sign-in button"
  • Settings Page: "Generate a settings page with profile info, notification preferences, and a danger zone"

Editing Screens

  • Add Elements: "Add a notifications bell icon to the header and rename the primary button to 'Add Tool'"
  • Theme Changes: "Change the color scheme to light mode and increase heading font size"
  • Navigation: "Add a sidebar navigation with Home, Tools, Settings, and Help items"

Generating Variants

  • Layout Variants: "Generate 2 layout and color scheme variants of this screen"
  • Style Exploration: "Create 3 variants — one minimalist, one data-dense, one mobile-optimized"
  • Reimagine: "Reimagine this screen with a completely different visual style"

Available Tools (8)

Project Management

create_project — Create a new Stitch project (container for screens). Projects are private by default.
get_project — Retrieve metadata and design theme for a project
list_projects — List all owned or shared projects

Screen Operations

list_screens — List all screens in a project
get_screen — Retrieve a specific screen including screenshot and HTML download URLs
generate_screen_from_text — Generate a new screen from a text prompt. Supports device types: DESKTOP, MOBILE, TABLET, AGNOSTIC.
edit_screens — Edit one or more existing screens via a targeted prompt
generate_variants — Generate design variants scoped to: LAYOUT, COLOR_SCHEME, IMAGES, TEXT_FONT, TEXT_CONTENT. Creative range: REFINE (subtle), EXPLORE (noticeable), REIMAGINE (fundamentally different).

Generation time — Screen generation takes 1–3 minutes. Do not retry if slow; the job continues server-side.Screen output — Each generated screen includes a screenshot.downloadUrl (image) and htmlCode.downloadUrl (HTML/CSS file). Both are signed Google URLs with a limited lifetime — fetch promptly.Design system is auto-generated — On first screen creation, Stitch generates a custom design system (colors, typography, component rules) tailored to the prompt. Subsequent edits reuse it for consistency.Device types — Supported: DESKTOP, MOBILE, TABLET, AGNOSTIC. Matching the device type to your use case improves layout quality.Edit vs. Variants — Use edit_screens for targeted, instructed changes. Use generate_variants when you want autonomous exploration.Model selection — Optional modelId accepts GEMINI_3_PRO, GEMINI_3_FLASH, or GEMINI_3_1_PRO.list_screens caveat — May return empty even when screens exist. Use get_screen directly with a known screen ID from generation responses.

Guardrails

This server is covered by the 14 universal guardrails. Server-specific guardrails are coming soon.
Configure guardrails via the Civic UI or ask the Configurator Agent: “Add guardrails to my Google Stitch server.”