Overview
Cursor is an AI-powered code editor. You can use LemonData as a custom API provider to access 300+ models.Configuration
- Open Cursor Settings (
Cmd/Ctrl + ,) - Navigate to Models → OpenAI API Key
- Enter your LemonData API key
- Set the Override OpenAI Base URL to:

Model Selection
After configuration, you can select any LemonData model in Cursor:Recommended Models for Coding
| Model | Best For |
|---|---|
claude-sonnet-4-20250514 | Complex coding, architecture |
claude-3-5-sonnet-20241022 | General coding, debugging |
gpt-4o | Code generation, explanations |
deepseek-r1 | Reasoning-heavy tasks |
gpt-4o-mini | Fast completions, simple tasks |
Features
Chat
Use the AI chat panel (Cmd/Ctrl + L) with any LemonData model:
- Code explanations
- Bug fixing
- Refactoring suggestions
- Documentation generation
Composer
The Composer feature (Cmd/Ctrl + I) works with LemonData models for:
- Multi-file edits
- Feature implementation
- Code migrations
Tab Completion
For tab completions, we recommend using fast models:gpt-4o-miniclaude-3-5-haiku-20241022gemini-2.0-flash
Troubleshooting
Models not showing up
Models not showing up
Cursor caches model lists. Try restarting Cursor after configuring the API.
Slow responses
Slow responses
Check your model selection. Use faster models like
gpt-4o-mini for quick tasks.Authentication errors
Authentication errors
Verify your API key is correct and has sufficient balance.
Tips
Use appropriate models
Use
gpt-4o-mini for tab completions, larger models for complex reasoning.Check your balance
Monitor usage in your LemonData dashboard.