crypto-data-aggregator/.env.example at main · nirholas/crypto-data-aggregator · GitHub

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# =============================================================================
# Crypto Data Aggregator - Environment Configuration
# =============================================================================
# Copy this file to .env.local and fill in your values
# Never commit .env.local to version control!
# =============================================================================

# =============================================================================
# x402 Payment Protocol Configuration
# =============================================================================

# Your wallet address that receives USDC payments
# IMPORTANT: Set this to your actual wallet address before going live!
# On testnet, you can use any Base Sepolia address
# X402_PAY_TO_ADDRESS=0x0000000000000000000000000000000000000000

# Network configuration
# Development: eip155:84532 (Base Sepolia testnet)
# Production: eip155:8453 (Base mainnet)
# X402_NETWORK=eip155:84532

# Facilitator URL for payment verification and settlement
# Default: Public Coinbase facilitator (recommended for most use cases)
# You can run your own facilitator for full control
# X402_FACILITATOR_URL=https://x402.org/facilitator

# Optional: Payment address for x402.ts (legacy, use X402_PAY_TO_ADDRESS)
# X402_PAYMENT_ADDRESS=

# =============================================================================
# API Configuration
# =============================================================================

# CoinGecko API Key (optional but recommended for higher rate limits)
# Get one at: https://www.coingecko.com/en/api/pricing
# COINGECKO_API_KEY=

# DeFiLlama API (no key required, but you can set base URL if self-hosting)
# DEFILLAMA_BASE_URL=https://api.llama.fi

# CryptoCompare API Key (optional, 250k calls/month free)
# Get one at: https://min-api.cryptocompare.com/pricing
# CRYPTOCOMPARE_API_KEY=

# Messari API Key (optional, 20 req/min free)
# Get one at: https://messari.io/api
# MESSARI_API_KEY=

# Coinglass API Key (optional, for derivatives data)
# Get one at: https://www.coinglass.com/pricing
# COINGLASS_API_KEY=

# Etherscan API Key (required for Ethereum block explorer data)
# Get one at: https://etherscan.io/apis (free: 5 calls/sec, 100k calls/day)
# ETHERSCAN_API_KEY=

# Multi-chain Explorer API Keys (all use Etherscan-compatible APIs)
# Base: https://basescan.org/apis
# BASESCAN_API_KEY=

# Arbitrum: https://arbiscan.io/apis
# ARBISCAN_API_KEY=

# Polygon: https://polygonscan.com/apis
# POLYGONSCAN_API_KEY=

# Optimism: https://optimistic.etherscan.io/apis
# OPTIMISTIC_ETHERSCAN_API_KEY=

# BSC: https://bscscan.com/apis
# BSCSCAN_API_KEY=

# Avalanche: https://snowtrace.io/apis
# SNOWTRACE_API_KEY=

# =============================================================================
# AI Features (Optional)
# =============================================================================

# Groq API key for AI-powered features
# Get one at: https://console.groq.com/
# GROQ_API_KEY=

# OpenAI API key (alternative to Groq)
# OPENAI_API_KEY=

# =============================================================================
# Vercel KV (API Key Storage)
# =============================================================================

# Required for API key system. Get these from your Vercel KV store:
# https://vercel.com/dashboard -> Storage -> KV -> Connect

# KV_REST_API_URL=
# KV_REST_API_TOKEN=
# KV_REST_API_READ_ONLY_TOKEN=

# =============================================================================
# Development Settings
# =============================================================================

# Node environment
# NODE_ENV=development

# Enable debug logging
# DEBUG=false

# =============================================================================
# Production Settings
# =============================================================================

# Your production domain (for CORS and OAuth callbacks)
# NEXT_PUBLIC_BASE_URL=https://your-domain.com

# Analytics tracking ID (optional)
# NEXT_PUBLIC_GA_ID=

# Sentry DSN for error tracking (optional)
# SENTRY_DSN=

# =============================================================================
# Authentication (OAuth)
# =============================================================================

# JWT Secret for session tokens (generate with: openssl rand -base64 32)
# AUTH_JWT_SECRET=your-secret-key-min-32-chars

# Google OAuth (https://console.cloud.google.com/)
# GOOGLE_CLIENT_ID=
# GOOGLE_CLIENT_SECRET=

# GitHub OAuth (https://github.com/settings/developers)
# GITHUB_CLIENT_ID=
# GITHUB_CLIENT_SECRET=

# Discord OAuth (https://discord.com/developers/applications)
# DISCORD_CLIENT_ID=
# DISCORD_CLIENT_SECRET=

# Twitter/X OAuth (https://developer.twitter.com/en/portal/dashboard)
# TWITTER_CLIENT_ID=
# TWITTER_CLIENT_SECRET=

# =============================================================================
# Email (Resend)
# =============================================================================

# Resend API key (https://resend.com)
# RESEND_API_KEY=re_xxxxxxxxxxxx

# Email sender address (must be verified domain on Resend)
# EMAIL_FROM=noreply@yourdomain.com

# =============================================================================
# Exchange Sync (Encrypted Credentials)
# =============================================================================

# Encryption key for exchange API credentials (generate with: openssl rand -hex 32)
# EXCHANGE_ENCRYPTION_KEY=your-64-char-hex-key

# Internal API key for server-to-server calls
# INTERNAL_API_KEY=your-internal-api-key