What is Cursor AI Chat?

Cursor AI Chat adds an AI assistant panel to your editor. Ask questions about your code, attach files with @, switch between chat modes, generate code with a shortcut, and — new in 0.4.0 — document your code in place, preview changes before accepting them, and use the interface in 13 languages.

You bring your own Cursor API key from cursor.com. The extension connects to Cursor models (Auto, Composer, Claude, GPT, and more).

Unofficial extension — not affiliated with Cursor.

🆕 What's new in 0.4.0

• 13 languages — full UI in English, Czech, Korean, Chinese, Japanese, German, French, Spanish, Portuguese, Italian, Polish, Russian, and Ukrainian. Set in ⚙ → Settings → Language.
• Documentation CodeLens — click Add documentation or Add functional comment above any function, class, interface, or enum. For types with nested members, choose whether to document just the declaration or everything inside.
• Code generation preview — see a live diff in the editor before accepting generated code. Accept all, discard, or insert selected parts.
• Chat history — past conversations are saved. Open history, rename threads, or delete old chats.
• Settings panel — API key, subscription, models, agents, and tools — all in one place inside the chat sidebar.
• Agent review — when the agent edits files, review diffs and undo or commit from a dedicated panel.
• Clarifying questions — the agent can ask structured follow-up questions right in chat.

Note: Inline ghost-text suggestions are temporarily disabled while reliability is improved. Code generation and chat work as usual.

📥 Install

1. Open Extensions (Ctrl+Shift+X / ⌘⇧X)
2. Search Cursor AI Chat
3. Click Install

Or from Quick Open (Ctrl+P / ⌘P):

ext install CoffeeRequired.cursor-ai-assistant

Also available on the Visual Studio Marketplace.

🚀 Get started in 3 steps

1. Open the chat

Click the ✨ Cursor AI icon in the left sidebar, or press Ctrl+Shift+I (⌘⇧I on Mac).

2. Activate your subscription

On first use, sign in or subscribe at cursoraichat.com — a free trial is available.

In the chat panel: ⚙ → Subscription, or follow the prompt when the extension asks.

3. Add your Cursor API key

• ⚙ → API Key in the chat panel, or
• Command Palette → Cursor AI: Set API Key

Get your key at cursor.com/dashboard/integrations — it starts with cursor_.

That's it. Start typing in the chat, or try the shortcuts below.

✨ What you can do

💬 Chat about your code

Open the sidebar and ask anything — explain a function, find bugs, plan a refactor. The assistant sees your open file and selection when relevant.

Quick ways to add context:

• Select code → Ctrl+Shift+L (⌘⇧L) — ask about the selection
• Right-click → Ask About Selection or Ask About Current File
• Type @ in chat to attach a file or folder
• Drag up to 4 images into the chat (PNG, JPEG, GIF, WebP)

📝 Document your code (new)

Above functions, classes, interfaces, and enums you'll see CodeLens links:

• Add documentation — JSDoc, TSDoc, or language-appropriate doc comments
• Add functional comment — a short comment explaining what the code does

For classes and interfaces with nested members, a dialog lets you document just the type or include all nested items.

⚡ Generate code

Need a function, test, or refactor?

1. Place the cursor where code should go (or select code to replace)
2. Press Ctrl+Shift+G (⌘⇧G)
3. Describe what you want — e.g. "Add input validation" or "Convert to async/await"
4. Review the diff preview, then accept, discard, or insert selected changes

Also available from the editor right-click menu → Generate Code.

📂 Chat history (new)

Every conversation is saved. Open History in the chat header to switch between past threads, rename them, or delete old chats.

🔍 Review agent changes (new)

When the agent edits your files, click Review to see a side-by-side diff of all changes. Undo everything or commit when you're satisfied.

🎛️ Chat modes

Switch how the assistant behaves:

Type / in chat for commands like /clear, /model, /summarize, and /help.

🌍 Language (new)

The chat panel and settings follow your VS Code language by default. To pick a specific language: ⚙ → Settings → Language, or set Cursor AI: UI Language in VS Code settings.

Supported: English, Czech, Korean, Chinese (Simplified), Japanese, German, French, Spanish, Portuguese (Brazil), Italian, Polish, Russian, Ukrainian.

⌨️ Keyboard shortcuts

Customize any shortcut in File → Preferences → Keyboard Shortcuts — search for Cursor AI.

💡 Tips

Pick the right model — click the model name in the chat header, or type /model composer (or any model name). Use Auto when you're not sure.

Start fresh — /clear or the + button in the chat header starts a new conversation.

Attach context on purpose — @src/utils.ts gives the AI exactly the file you mean, instead of relying on what's open.

Use Plan mode for big tasks — /plan How should I restructure the auth module? before asking the agent to edit files.

Copy with context — when you copy selected code (Ctrl+C), the extension can attach file path and line numbers for smarter chat replies.

Document in bulk — for a class with many methods, use Include nested members to generate comments for the whole type at once.

⚙️ Settings (the ones that matter)

Open Settings (Ctrl+, / ⌘,) and search Cursor AI, or use ⚙ Settings inside the chat panel:

More options — inline suggestion model, token limits, agent behavior, MCP tools — are available under the same Cursor AI section and in the built-in settings panel.

🔗 Links

• Subscription & account: cursoraichat.com
• Cursor API keys: cursor.com/dashboard/integrations
• Marketplace: CoffeeRequired.cursor-ai-assistant

📄 License

MIT — unofficial extension, not affiliated with Cursor.