messages/aider-api-key-info.txt

Aider requires API key configuration (no login command available).
 
Configuration options:
1. Command line flag: aider --model sonnet --api-key anthropic=YOUR_KEY
2. Environment variable (examples below)
3. Create .env file in ~/.aider/.env or project root
 
Environment variables you can set:
- ANTHROPIC_API_KEY (for Claude models)
- OPENAI_API_KEY (for OpenAI models)
- GEMINI_API_KEY (for Gemini models)
 
Example (Windows PowerShell):
$env:ANTHROPIC_API_KEY = "your-api-key-here"
[System.Environment]::SetEnvironmentVariable("ANTHROPIC_API_KEY", "your-api-key-here", "User")
 
Example (Linux/Mac):
export ANTHROPIC_API_KEY="your-api-key-here"
 
Example (.env file in ~/.aider/.env or project root):
ANTHROPIC_API_KEY=your-api-key-here
 
For more information, visit: https://aider.chat/docs/config/api-keys.html