Nexus MCP Server

# ============================================================================== # OpenRouter Search MCP Server - Environment Configuration # ============================================================================== # # This file contains example environment variables for the OpenRouter Search # MCP server. Copy this file to .env and update the values as needed. # # IMPORTANT: Never commit your actual .env file to version control! # # ============================================================================== # ------------------------------------------------------------------------------ # Required Configuration # ------------------------------------------------------------------------------ # OpenRouter API Key (REQUIRED) # Get your API key from: https://openrouter.ai/keys # Supports multiple environment variable names: # - OPENROUTER_API_KEY (primary) # - OPENROUTER_KEY (alternative) OPENROUTER_API_KEY=sk-or-v1-your-api-key-here-at-least-20-characters # ------------------------------------------------------------------------------ # Optional Configuration # ------------------------------------------------------------------------------ # Default Perplexity Model # The default model to use for search operations # Valid values: # - perplexity/sonar (default) # - perplexity/sonar-small-chat # - perplexity/sonar-medium-chat # - perplexity/sonar-large-chat # - perplexity/sonar-small-online # - perplexity/sonar-medium-online # Default: perplexity/sonar OPENROUTER_DEFAULT_MODEL=perplexity/sonar # Request Timeout (milliseconds) # Maximum time to wait for API responses # Must be a positive integer # Default: 30000 (30 seconds) OPENROUTER_TIMEOUT_MS=30000 # Default Search Parameters # These values are used as defaults when search parameters are not specified # Default Maximum Tokens # Maximum number of tokens in the response # Valid range: 1-8000, Default: 1000 OPENROUTER_DEFAULT_MAX_TOKENS=1000 # Default Temperature # Controls randomness in response generation # Valid range: 0-2, Default: 0.7 (0 = deterministic, 2 = very random) OPENROUTER_DEFAULT_TEMPERATURE=0.7 # Default Top-P (Nucleus Sampling) # Probability cutoff for token selection # Valid range: 0-1, Default: 1.0 (0.1 = only top 10% likely tokens) OPENROUTER_DEFAULT_TOP_P=1.0 # Default Frequency Penalty # Penalty for repeated tokens based on frequency # Valid range: -2 to 2, Default: 0.0 (0 = no penalty) OPENROUTER_DEFAULT_FREQUENCY_PENALTY=0.0 # Default Presence Penalty # Penalty for tokens that already appear in the text # Valid range: -2 to 2, Default: 0.0 (0 = no penalty) OPENROUTER_DEFAULT_PRESENCE_PENALTY=0.0 # OpenRouter API Base URL # Base URL for the OpenRouter API # Must be a valid URL # Default: https://openrouter.ai/api/v1 OPENROUTER_BASE_URL=https://openrouter.ai/api/v1 # ------------------------------------------------------------------------------ # Application Configuration # ------------------------------------------------------------------------------ # Log Level # Controls the verbosity of application logging # Valid values: error, warn, info, debug, silly # Default: info LOG_LEVEL=info # ------------------------------------------------------------------------------ # Setup Instructions # ------------------------------------------------------------------------------ # # 1. Copy this file to .env: # cp .env.example .env # # 2. Edit .env and replace placeholder values with your actual configuration: # - Set OPENROUTER_API_KEY to your actual OpenRouter API key # - Adjust optional settings as needed for your environment # # 3. Ensure .env is in your .gitignore file to prevent accidental commits # # 4. Test your configuration by running: # npm run dev # # ------------------------------------------------------------------------------ # Security Notes # ------------------------------------------------------------------------------ # # - API keys are sensitive information - never share them publicly # - Use different API keys for development, staging, and production # - Regularly rotate your API keys for security # - Monitor your API usage in the OpenRouter dashboard # # ==============================================================================