Jupiter, within the Solana world, isn't exactly a single cryptocurrency you can buy and trade. Instead, it's a decentralized exchange aggregator. Think of it as a comparison tool for swapping cryptocurrencies. Jupiter searches all the different Solana-based DEXs (decentralized exchanges) to find the absolute best price for your trade. This helps you avoid slippage, where you end up paying more than you expected, and keeps transaction fees low. Jupiter itself doesn't charge fees, but it does have its own token, JUP. Launched in early 2024, JUP grants holders voting rights on how the Jupiter platform develops in the future. So, while Jupiter itself isn't a traditional cryptocurrency, its JUP token lets you participate in the growth of this important swapping service within the Solana ecosystem.