Hosting

Google-managed remote

Transport

Streamable HTTP

Endpoint

https://stitch.googleapis.com/mcp

Authentication

Google-managed remote MCP. Authentication and required OAuth scopes are product-specific; consult the linked product MCP reference before connecting.

Requirements

• A compatible MCP client supporting the listed transport.
• A Google account or project with access to the product.
• Any product-specific API enablement, OAuth scopes, IAM roles, or preview eligibility stated in the linked product reference.

Setup steps

1. Open the linked product MCP reference and confirm current access/preview prerequisites and authentication method.
2. Enable the product API/service and grant the minimum required roles/scopes.
3. Add https://stitch.googleapis.com/mcp to an MCP client using Streamable HTTP.
4. Authenticate with the intended Google identity and inspect the client’s live tool list; this catalog does not infer undisclosed tools.

Added download_file, reported as a newly observed hosted tool on 2026-10-26; account-specific tools may vary.

• create_project

  Creates a new Stitch project. A project is a container for UI designs and frontend code.

  Parameters: title
  01
• get_project

  Retrieves the details of a specific Stitch project using its project name.

  Parameters: name
  02
• delete_project

  Deletes a specific Stitch project using its project name. **Instructions for Tool Call:** * This action cannot be undone. Please confirm with "yes" or "no" to proceed.

  Parameters: name
  03
• list_projects

  Lists all Stitch projects accessible to the user. By default, it lists projects owned by the user.

  Parameters: filter
  04
• list_screens

  Lists all screens within a given Stitch project.

  Parameters: projectId
  05
• get_screen

  Retrieves the details of a specific screen within a project.

  Parameters: name
  06
• generate_screen_from_text

  Generates a new screen within a project from a text prompt. **Instructions for Tool Call:** * This action can take a few minutes to complete. Please be patient. DO NOT RETRY. * If the tool fails with a timeout, don't retry. Instead, try to get the screen with `get_screen` method every 30 seconds for up to 10 times before giving up. * If the tool call fails due to connection error, the generation process may still succeed. Please try to get the screen with `get_screen` method later. **Output:** * **`output_components`**: If `output_components` contains text, return it to the user. If `output_components` contains suggestions (e.g. "Yes, make them all"), present these suggestions to the user. If the user accepts one of the suggestions, call `generate_screen_from_text` again with `prompt` set to the accepted suggestion.

  Parameters: designSystem, deviceType, modelId, projectId, prompt
  07
• edit_screens

  Edits existing screens within a project using a text prompt. **Instructions for Tool Call:** * This action can take a few minutes to complete. Please be patient. DO NOT RETRY. * If the tool call fails due to connection error, the process may still succeed.

  Parameters: deviceType, modelId, projectId, prompt, selectedScreenIds
  08
• generate_variants

  Generates variants of existing screens within a project using a text prompt. **Instructions for Tool Call:** * If the tool fails with a timeout, don't retry. Instead, try to get the screen with `get_screen` method every 30 seconds for up to 10 times before giving up.

  Parameters: deviceType, modelId, projectId, prompt, selectedScreenIds, variantOptions
  09
• upload_design_md

  Uploads DESIGN.md to a Stitch project. Use this tool when the user wants to create a design system from a DESIGN.md file. **Instructions for Tool Call:** * Call `create_design_system_from_design_md` tool immediately after this tool to create the design system from the uploaded DESIGN.md, and display the design system in the UI.

  Parameters: designMdBase64, projectId
  10
• create_design_system

  Creates a new design system for a project. Use this tool when the user wants to set or update the overall visual theme, style, or branding of the application. This includes configuring: - Color Palette: Presets, custom primary colors, and saturation levels. - Typography: Font families (e.g., Inter, Roboto, etc.). - Shape: Corner roundness for UI elements. - Appearance: Light and dark mode background colors. - Design MD: Free-form design instructions in markdown. This tool establishes the foundational design tokens that apply across all screens in the project. **Instructions for Tool Call:** * Call `update_design_system` tool immediately after this tool to apply the design system to the project, and display the design system in the UI.

  Parameters: designSystem, projectId
  11
• create_design_system_from_design_md

  Creates a design system for a project, with user uploaded DESIGN.md file, and displays the design system in the UI. **Instructions for Tool Call:** * Should call `upload_design_md` tool first to upload DESIGN.md to a Stitch project.

  Parameters: deviceType, projectId, selectedScreenInstance
  12
• update_design_system

  Updates a design system for a project. Use this tool when the user wants to change the overall visual theme, style, or branding of the application. This includes configuring: - Color Palette: Presets, custom primary colors, and saturation levels. - Typography: Font families (e.g., Inter, Roboto, etc.). - Shape: Corner roundness for UI elements. - Appearance: Light and dark mode background colors. - Design MD: Free-form design instructions in markdown. This tool establishes the foundational design tokens that apply across all screens in the project.

  Parameters: designSystem, name, projectId
  13
• list_design_systems

  Lists all design systems for a given project.

  Parameters: projectId
  14
• apply_design_system

  Applies a design system to a list of screens. Use this tool when the user wants to update one or more screens to match the style of a design system. This tool applies the selected design system's foundational design tokens (colors, fonts, shapes, etc.) to the chosen screens, modifying their appearance to align with the design system.

  Parameters: assetId, projectId, selectedScreenInstances
  15
• download_file

  Download a file from a Stitch project.

  16

This server’s available tools can vary by account, permissions, or configuration. The list shown is not its full runtime catalog.

• Beta; tools can create, edit, apply, and delete design projects or systems.

• official tool reference

  Google lists Stitch (Beta) as an available remote MCP server.

• official server catalog

  Official supported-products catalog provides the MCP endpoint.

• live runtime tools list

  Unauthenticated JSON-RPC tools/list response; 15 tool names returned with descriptions.

Documentation checked 2026-10-28T00:00:00Z. Connection has not been runtime tested.