In this blog post, we explore how to fetch the current network gas fee using Node.js, providing a comprehensive guide for developers working with various cryptocurrencies such as Ethereum, Bitcoin, Dogecoin, XRP, and Solana. Learn how to integrate real-time gas fee fetching into your existing cryptocurrency transaction API, enhancing the efficiency and usability of your blockchain applications. Whether you are a seasoned developer or just starting out, this tutorial will help you seamlessly retrieve gas fees and optimize your blockchain interactions.