chore: sync submodule state (parent ref update)

Made-with: Cursor

services/token-aggregation/API_KEYS.md

@@ -0,0 +1,50 @@
+# API Keys Configuration
+
+## CoinMarketCap API Key
+
+**Status**: ✅ Configured
+
+The CoinMarketCap API key has been provided and configured in the `.env` file.
+
+**Key**: `your-coinmarketcap-api-key` (set in .env, never commit)
+
+## Security Notes
+
+⚠️ **Important**: 
+- The `.env` file is in `.gitignore` and will NOT be committed to version control
+- Never commit API keys to git repositories
+- Rotate keys if they are accidentally exposed
+- Use environment variables or secrets management in production
+
+## Usage
+
+The CoinMarketCap adapter will automatically use this key when making API requests. The adapter will:
+
+1. Check if the API key is configured
+2. Use it for all CMC API calls
+3. Gracefully handle errors if the key is invalid or rate-limited
+
+## Testing the API Key
+
+You can verify the API key works by:
+
+1. Starting the service: `npm start`
+2. Making a request that uses CMC adapter
+3. Checking logs for any API errors
+
+## Optional: Other API Keys
+
+For full functionality, you may also want to configure:
+
+- **CoinGecko API Key**: Free tier available at https://www.coingecko.com/en/api/pricing
+- **DexScreener API Key**: Optional, service works without it
+
+## Production Deployment
+
+For production, use:
+- Environment variables
+- Kubernetes secrets
+- AWS Secrets Manager / Azure Key Vault
+- Docker secrets
+
+Never hardcode API keys in source code or commit them to version control.