pen.dev
7.8#3 in ai ui design generatorsFrom $16 a monthFree planWebAPIExtensionLinux
Visitpen.dev vs Starry
What both publish
| Fact | pen.dev | Starry |
|---|---|---|
| AI providers | The documented integrated provider options include OpenAI, Anthropic, Google Gemini, Cursor, GitHub Copilot, xAI, OpenRouter, and other API-key providers. | Users provide their own API key for supported AI providers, and Starry also supports custom OpenAI or Anthropic format endpoints. |
| AI workflow | Users can work with an integrated agent or connect external agents through MCP, and plans allow different numbers of agents to run in parallel. | The canvas AI is powered by ACP and can create and modify auto-layout designs from natural language. |
| CLI | The @pen.dev/cli package provides headless creation, editing, MCP-shell access and PNG, JPEG, WEBP and PDF export from the terminal. | A headless CLI can export documents and automate design operations, including use in CI workflows. |
| Code export | Frames can be exported in one click as HTML with CSS or Tailwind CSS, while artwork can be exported as PDF, PNG, JPEG or WEBP. | It exports React JSX, HTML, SVG, design tokens, and raster formats including PNG, JPG, and WEBP. |
| Integrations | Official documentation lists MCP integrations including Claude Code, Codex, Gemini CLI, Antigravity, OpenCode, Kiro, and Claude Desktop. | Starry provides an MCP server for connecting AI coding tools and editors such as Cursor, VS Code, Claude Code, and OpenAI Codex. |
| Privacy | The privacy policy says text-based AI inputs and outputs using a user's own provider credentials go directly from the device to that provider and do not pass through High Agency servers. | Starry says API keys are stored locally and prompts go directly to the chosen provider without passing through Starry's servers. |
| Product | pen.dev describes itself as an agentic canvas for building software and a vector design tool integrated with development environments. | Starry is an AI design editor that creates editable interface layers from natural-language prompts and exports production code. |
pen.dev plans
- FreeFree
- Pro$16 a month
- Ultra$48 a month
- EnterprisePriced on request
Starry plans
- FreeFree
- Pro$29 a month
- CustomPriced on request
Pick pen.dev if…
pen.dev suits designers and developers who want to combine vector design, code-oriented exports, and agent workflows. It may also suit teams connecting external agents or providers through MCP and the listed integrations.
Pick Starry if…
Starry suits designers, engineers, and teams who want to move from prompts and interface designs toward app code. It may also fit workflows involving Figma files, local design files, or command-line exports.