Get current cryptocurrency prices by CoinGecko coin IDs (e.g., 'bitcoin', 'ethereum'). Returns real-time prices in multiple currencies (USD, EUR, BTC, ETH). Optionally includes market cap, 24h volume, 24h price change, and last updated timestamp. Supports up to 100 coins per request. Ideal for: multi-coin price lookups, portfolio valuations, price monitoring dashboards, trading signal triggers.
