Authentication Setup

Qwen Code supports two main authentication methods to access AI models. Choose the method that best fits your use case:

Qwen OAuth (Recommended):
- Use this option to log in with your qwen.ai account.
- During initial startup, Qwen Code will direct you to the qwen.ai authentication page. Once authenticated, your credentials will be cached locally so the web login can be skipped on subsequent runs.
- Requirements:
  - Valid qwen.ai account
  - Internet connection for initial authentication
- Benefits:
  - Seamless access to Qwen models
  - Automatic credential refresh
  - No manual API key management required
Getting Started:
```
# Start Qwen Code and follow the OAuth flow
qwen
```
The CLI will automatically open your browser and guide you through the authentication process.

For users who authenticate using their qwen.ai account:

Quota:
- 60 requests per minute
- 2,000 requests per day
- Token usage is not applicable
Cost: Free

Notes: A specific quota for different models is not specified; model fallback may occur to preserve shared experience quality.
OpenAI-Compatible API:
- Use API keys for OpenAI or other compatible providers.
- This method allows you to use various AI models through API keys.
Configuration Methods:

a) Environment Variables:
```
export OPENAI_API_KEY="your_api_key_here"
export OPENAI_BASE_URL="your_api_endpoint"  # Optional
export OPENAI_MODEL="your_model_choice"     # Optional
```
b) Project .env File: Create a .env file in your project root:
```
OPENAI_API_KEY=your_api_key_here
OPENAI_BASE_URL=your_api_endpoint
OPENAI_MODEL=your_model_choice
```
Supported Providers:
- OpenAI (https://platform.openai.com/api-keys)
- Alibaba Cloud Bailian
- ModelScope
- OpenRouter
- Azure OpenAI
- Any OpenAI-compatible API

Switching Authentication Methods

To switch between authentication methods during a session, use the /auth command in the CLI interface:

# Within the CLI, type:
/auth

This will allow you to reconfigure your authentication method without restarting the application.

Persisting Environment Variables with `.env` Files

You can create a .qwen/.env file in your project directory or in your home directory. Creating a plain .env file also works, but .qwen/.env is recommended to keep Qwen Code variables isolated from other tools.

Important: Some environment variables (like DEBUG and DEBUG_MODE) are automatically excluded from project .env files to prevent interference with qwen-code behavior. Use .qwen/.env files for qwen-code specific variables.

Qwen Code automatically loads environment variables from the first .env file it finds, using the following search order:

Starting in the current directory and moving upward toward /, for each directory it checks:
1. .qwen/.env
2. .env
If no file is found, it falls back to your home directory:
- ~/.qwen/.env
- ~/.env

Important: The search stops at the first file encountered—variables are not merged across multiple files.

Examples

Project-specific overrides (take precedence when you are inside the project):

mkdir -p .qwen
cat >> .qwen/.env <<'EOF'
OPENAI_API_KEY="your-api-key"
OPENAI_BASE_URL="https://api-inference.modelscope.cn/v1"
OPENAI_MODEL="Qwen/Qwen3-Coder-480B-A35B-Instruct"
EOF

User-wide settings (available in every directory):

mkdir -p ~/.qwen
cat >> ~/.qwen/.env <<'EOF'
OPENAI_API_KEY="your-api-key"
OPENAI_BASE_URL="https://dashscope.aliyuncs.com/compatible-mode/v1"
OPENAI_MODEL="qwen3-coder-plus"
EOF

Non-Interactive Mode / Headless Environments

When running Qwen Code in a non-interactive environment, you cannot use the OAuth login flow. Instead, you must configure authentication using environment variables.

The CLI will automatically detect if it is running in a non-interactive terminal and will use the OpenAI-compatible API method if configured:

OpenAI-Compatible API:
- Set the OPENAI_API_KEY environment variable.
- Optionally set OPENAI_BASE_URL and OPENAI_MODEL for custom endpoints.
- The CLI will use these credentials to authenticate with the API provider.

Example for headless environments:

export OPENAI_API_KEY="your-api-key"
export OPENAI_BASE_URL="https://api-inference.modelscope.cn/v1"
export OPENAI_MODEL="Qwen/Qwen3-Coder-480B-A35B-Instruct"

# Run Qwen Code
qwen

If no API key is set in a non-interactive session, the CLI will exit with an error prompting you to configure authentication.

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