The era of chain abstraction is beginning, and Particle has released its Universal SDKs for free. In the first phase, @ParticleNtwrk formed the Solana chain + EVM chain (including the Bitcoin ecosystem) chain abstraction alliance. In the second phase, Particle developed the Universal Account, the core infrastructure for chain abstraction. Users use a universal account, with universal balances and gas usage. Users are completely unaware of the different blockchains. In the third phase, Particle launched UniversalX, a DEX product based on Universal Accounts. Users can trade here just like they would on a CEX. In the fourth phase, Particle gradually released its Universal SDKs. These Universal Account development toolkits make it easy for developers to develop DAPPs based on Universal Accounts, eliminating the need to learn or understand the underlying technology behind Universal Accounts. In fact, before the official release of the Universal SDKs, the derivative DEX product MYX had already integrated with Particle's Universal Accounts. Users can use funds in their Universal Accounts to trade perpetual futures on MYX. More DAPPs and various types of DAPPs will gradually be implemented in the Particle ecosystem, not limited to DEX products. This could also include other types of DeFi, such as connecting to Uniswap and using universal accounts to add limited partners. This could also be AI applications, using universal accounts to conduct intelligent financial management across multiple blockchain ecosystems by requesting AI models or connecting to AI financial agent products. This could also include games, social networking, and more. In short, the free and open availability of Universal SDKs marks the beginning of the era of chain abstraction.