Definition ∞ A multi-chain DEX, or decentralized exchange, is a platform that permits the trading of digital assets across multiple distinct blockchain networks. Unlike single-chain exchanges, it facilitates swaps between tokens residing on different ledgers without requiring centralized intermediaries. This functionality significantly enhances interoperability and expands the range of tradable assets. It aims to overcome the limitations of isolated blockchain ecosystems.
Context ∞ Multi-chain DEXs are becoming increasingly important as the digital asset landscape diversifies across numerous blockchain networks. They address the liquidity fragmentation problem by allowing users to access assets and trading pairs from various chains within a single interface. The primary challenges involve maintaining robust security across different protocols and ensuring efficient cross-chain transaction finality. The ongoing development of secure and scalable multi-chain solutions is central to a more interconnected Web3 future.
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