Design editor for agents
The design editor where every design is code.
Designs are TSX and Tailwind. They save to your Knighn account, and AI agents reach them through one MCP address. Knighn also opens Figma .fig and Pencil .pen files.
Version 0.0.1-97 for macOS on Apple Silicon. The iOS app is coming soon to the App Store.
Looking for Knighn 1? Download Knighn OG.
One editor for your files, your cloud and your agents.
Designs are code
Each design is TSX and Tailwind in one .html file. Edit it on the canvas, keep it in git, and copy a frame as React. Knighn also opens Figma .fig and Pencil .pen files.
Personal cloud
Your designs save to your Knighn account. Open the same files in the web editor, the macOS app and the iOS app. Start as a guest. Create an account when you want your work on every device.
Agent ready MCP
Connect Claude Code, Cursor or any MCP client to mcp.knighn.com. Sign in once, and an agent can find, read and edit your stored designs with one address.
Remote MCP
One address. Sign in once. Your designs, open to your agents.
- 01
Add the Knighn MCP
Add https://mcp.knighn.com/mcp to Claude Code, Codex, Cursor or any MCP client. The Home tab in Knighn shows the same address.
- 02
Sign in once
The first time, your agent opens a Knighn page. Sign in and choose what it may do. Revoke it at any time in Settings > Connections. A client that cannot sign in can use an API key link instead.
- 03
Let the agent work
The agent gets two tools: search and execute. It can find, read and edit your stored designs. Open a file in Knighn to see the result.
claude mcp add knighn --transport http https://mcp.knighn.com/mcp{
"mcpServers": {
"knighn": {
"type": "http",
"url": "https://mcp.knighn.com/mcp"
}
}
}Pricing
Free to start. Pro when you need more room.
Everything you need to open, edit and save design files. A limited number of files.
- Web editor, macOS app and iOS app
- Figma .fig and Pencil .pen files
- Designs save to your Knighn account
- Remote MCP endpoint for agents
- Limited files and storage
For people who keep a lot of design work in Knighn.
- Everything in Free
- More files
- More storage
- Upgrade from Settings in the app
Open a design file now.
No sign up is needed. The editor starts you as a guest. Create an account when you want to keep your designs on every device.