The LEVEL11 desktop app includes, or works together with, the open-source software below. Each component is governed by its own license, and under Article 15(3) of the Terms of Service that license prevails to the extent it conflicts with the Terms. The full license texts are in each repository.
Components included in the app
| Component | License | Repository |
|---|---|---|
| Electron | MIT | electron/electron |
| Monaco Editor | MIT | microsoft/monaco-editor |
| xterm.js (@xterm/xterm, addon-fit, addon-web-links) | MIT | xtermjs/xterm.js |
| node-pty | MIT | microsoft/node-pty |
| ripgrep (@vscode/ripgrep) | MIT | microsoft/vscode-ripgrep |
| React, React DOM | MIT | facebook/react |
| Zustand | MIT | pmndrs/zustand |
| jsdiff (diff) | BSD-3-Clause | kpdecker/jsdiff |
| node-qrcode | MIT | soldair/node-qrcode |
| ws | MIT | websockets/ws |
| Zod | MIT | colinhacks/zod |
| font-list | MIT | oldj/node-font-list |
| electron-updater | MIT | electron-userland/electron-builder |
| Model Context Protocol TypeScript SDK | MIT | modelcontextprotocol/typescript-sdk |
| Anthropic TypeScript SDK | Apache-2.0 | anthropics/anthropic-sdk-typescript |
| OpenAI Node SDK | Apache-2.0 | openai/openai-node |
| Google Gen AI SDK (@google/genai) | Apache-2.0 | googleapis/js-genai |
| Codex SDK (@openai/codex-sdk) | Apache-2.0 | openai/codex |
| Pretendard | SIL Open Font License 1.1 | orioncactus/pretendard |
| D2Coding | SIL Open Font License 1.1 | naver/d2codingfont |
The Claude Agent SDK (@anthropic-ai/claude-agent-sdk) is governed by Anthropic's terms.
External tools LEVEL11 works with
These work with LEVEL11 only when the user installs them; they are not distributed with LEVEL11.
| Component | License | Repository |
|---|---|---|
| BrowserSkill (Tencent) | MIT, Copyright (c) 2026 Tencent | Tencent/BrowserSkill |
| Claude Code | Anthropic terms | anthropics/claude-code |
| Codex CLI | Apache-2.0 | openai/codex |
When LEVEL11 copies BrowserSkill's skill document to the user's computer, the MIT license notice goes with it.
If a component is missing or listed wrongly, please tell us through Support.