.env.example

# Paper Reader Agent - Environment Configuration
# Copy this file to .env and fill in your API keys

# ============= API Keys =============
# DeepSeek API (default provider)
DEEPSEEK_API_KEY=your_deepseek_api_key_here

# OpenAI API (alternative provider)
OPENAI_API_KEY=your_openai_api_key_here

# Siliconflow API
SILICONFLOW_API_KEY=your_siliconflow_api_key_here

# ============= LLM Configuration (Optional) =============
# Request timeout in seconds (default: 60.0)
LLM_TIMEOUT_S=60.0

# Maximum retry attempts for failed API calls (default: 3)
LLM_MAX_RETRIES=3

# Global concurrency limit for LLM API calls across all sessions (default: 0 = disabled)
# Set to a positive number to limit concurrent LLM requests (e.g., 10)
# This helps prevent API rate limiting when multiple users analyze papers simultaneously
LLM_MAX_CONCURRENCY=0

# ============= Web Search Configuration (Optional) =============
# Enable web search for reproduction resources (default: false)
ENABLE_WEB_SEARCH=false

# GitHub Personal Access Token (for higher rate limits: 5000 req/hour vs 60)
# Create at: https://github.com/settings/tokens (no special scopes needed)
GITHUB_TOKEN=your_github_token_here

# HuggingFace API Token (for accessing private models/datasets)
# Create at: https://huggingface.co/settings/tokens
HUGGINGFACE_TOKEN=your_huggingface_token_here

# Serper API Key (optional, for Google search integration)
# Get at: https://serper.dev/
SERPER_API_KEY=your_serper_api_key_here

# ============= Tavily Deep Research (Optional) =============
# Tavily API Key for Deep Research feature (Tavily Research API)
# Get at: https://app.tavily.com
# Without this key, the Deep Research sidebar feature will show an error when used
TAVILY_API_KEY=tvly-your_api_key_here

# Tavily Project ID (optional, for usage tracking)
# TAVILY_PROJECT=optional-project-id

# ============= Valyu Deep Research (Optional) =============
# Valyu API Key for Deep Research feature (alternative to Tavily)
# Get at: https://platform.valyu.ai
# Without this key, the Valyu provider option will show an error when used
VALYU_API_KEY=your_valyu_api_key_here

# Default Deep Research Provider (tavily or valyu)
# DEFAULT_RESEARCH_PROVIDER=tavily