Exotool Help Center
Everything there is to read about building apps with Exotool, in one place: the editor's own documentation, the reference documents, and how Exotool works with Claude.
Using Exotool with Claude
Exotool has an MCP server: connect it to Claude and ask Claude to build and change your apps for you, in your own account, with every design still open to you in the editor.
- The Exotool MCP server for Claude — what it does, how to connect, how sign-in works, what is kept safe, the limits.
- Uploading files through Claude — icons, backgrounds, images, files and library files.
- The tool reference — every tool the server offers, with its parameters.
Reference documents
The same six documents that Claude reads when it works on an app, for people.
- System overview — what Exotool is and how a design becomes a running app.
- Using the editor — screens, sheets, placeholders, connectors, symlinks, best practices.
- The Exotool language — what you write inside an activity, and the built-in functions.
- HTML templates — dynamic content with
{{ }}placeholders and parameters. - The diagram — the JSON document behind every app, as Claude loads and saves it.
- The element catalogue — every element type and its fields.
The editor's documentation
The documentation built into the editor, with the Exotool language, the element types and the generated function reference.
Getting help
- Contact us through the site, or write to info@exotool.com.
- Frequently asked questions
- Terms of service and privacy policy