NeonCodex AI

Claude Sonnet 5 · GPT-5.5 · Gemini 3.6 Flash · DeepSeek — all inside VS Code.

NeonCodex AI brings frontier AI models directly into your editor. Ask questions about your code, get instant fixes, generate tests, scan for security issues, and chat with AI — without leaving VS Code.

✨ Features

💬 AI Chat Panel

Open the NeonCodex chat sidebar and ask anything. Supports multi-turn conversations, file context, and streaming responses.

Chat panel in action

🔍 Ask About Selection

Select any code, right-click → NeonCodex: Ask about selection. The AI explains, improves, or answers your question about the highlighted code.

🔧 Fix This Code

Select buggy code → NeonCodex: Fix this code. The AI identifies the bug and returns the corrected version, ready to insert.

📖 Explain Code

Highlight complex logic and get a plain-English explanation with examples. Great for onboarding or understanding unfamiliar codebases.

🧪 Generate Tests

Select a function → NeonCodex: Generate tests. Instantly get comprehensive unit tests using your project's test framework.

🛡️ Security Scan

Select a code block → NeonCodex: Security scan. Detects SQL injection, XSS, hardcoded secrets, insecure patterns, and more.

⚡ Keyboard Shortcuts

Action	Windows/Linux	macOS
Open Chat	`Ctrl+Shift+A`	`Cmd+Shift+A`
Ask About Selection	`Ctrl+Shift+Q`	`Cmd+Shift+Q`
Fix Code	`Ctrl+Shift+F`	`Cmd+Shift+F`

🚀 Getting Started

1. Get a free API key

2. Set your API key

Open the Command Palette (Ctrl+Shift+P) → NeonCodex: Set API Key → paste your nck_live_... key.

Or set it in Settings (Ctrl+,) → search neoncodex → paste your key.

3. Start using

Click the ✦ NeonCodex icon in the Activity Bar to open the chat panel
Select any code and right-click to see NeonCodex actions
Use Ctrl+Shift+A to open chat anytime

🤖 Supported AI Models

Model	Plan	Best for
✦ Auto routing	Free & Pro	Picks best model per task
Qwen3 Coder 480B	Free	Code generation
Gemma 4 31B	Free	General tasks
Claude Haiku 4.5	Pro	Fast, simple tasks
Claude Sonnet 4.6 / 5	Pro	Complex reasoning + code
Claude Opus 4.6/4.7/4.8/5	Pro	Deep analysis + writing
Claude Fable 5	Pro	Top-tier, premium reasoning
GPT-5.5 · GPT-5.6 Luna Pro	Pro	Multimodal + reasoning
Gemini 3.6 Flash	Pro	Fast, multilingual
DeepSeek V4 Pro	Pro	Math + algorithms, ultra affordable
GLM-5.2 / 5.3	Pro	1M context, long-horizon coding
Qwen 3.7 Plus / 3.8 27B	Pro	Vision + video, research
Kimi K2.7 Code	Pro	Long-horizon coding
MiniMax M3	Pro	1M context, multimodal
Grok 4.6	Pro	Frontier agentic coding

⚙️ Configuration

Search neoncodex in VS Code Settings (Ctrl+,):

Setting	Default	Description
`neoncodex.apiKey`	—	Your API key (`nck_live_...`)
`neoncodex.model`	`auto`	Default AI model
`neoncodex.apiUrl`	`https://neoncodex.io/api`	API base URL
`neoncodex.autoApply`	`false`	Auto-apply safe fixes without confirmation
`neoncodex.inlineHints`	`true`	Show inline AI hints in editor

💡 Tips & Tricks

Include file context: Mention filenames in your prompt — "In auth.ts, why does the token expire early?" — the AI understands your project structure.

Chain fixes: After a fix, say "also add error handling" to continue improving without re-selecting code.

Paste errors: Copy a stack trace directly into the chat — the AI will explain and suggest a fix.

Use with tasks: All chat history and code analysis syncs with your NeonCodex dashboard for reference later.

🔐 Privacy & Security

Your code is sent to NeonCodex AI servers only when you explicitly trigger a command
No background scanning or telemetry of your files
API keys are stored in VS Code's secure secret storage (never in settings files)
All requests are encrypted in transit (TLS 1.3)
Read our Privacy Policy

🆚 Free vs Pro

Feature	Free	Pro
Monthly tokens	Free models only	3.39M tokens/month
Free models (Qwen3, Gemma)	✅	✅
Claude Sonnet 4.6 / 5	❌	✅
GPT-5.5	❌	✅
Gemini 3.6 Flash	❌	✅
Memory across sessions	❌	✅
File attachments	❌	✅

Upgrade to Pro →

🐛 Issues & Feedback

GitHub: github.com/neoncodex/vscode-extension
Support: support@neoncodex.io
Website: neoncodex.io

If you find a bug or have a feature request, please open an issue.

📄 License

MIT License — see LICENSE

Built by Nero Softwares & IT Services Pvt. Ltd.

NeonCodex AI — Claude, GPT-5.5, DeepSeek, Grok & 15+ Models

Nero Softwares & IT Services Pvt. Ltd.