Synapse (SYN) is an interoperability protocol crafted to facilitate the secure transmission of arbitrary data between blockchains. Its users possess the capability to transfer and exchange assets across various chains, spanning layer 1, layer 2, and sidechain ecosystems. The project’s objective is to enhance inter-blockchain compatibility by streamlining the movement of assets between different networks for its users. To ensure the secure transfer of users' assets across ecosystems while upholding slippage, liquidity pool balances, and transaction prices, Synapse employs a stableswap algorithm. The Synapse ecosystem comprises six components: Synapse Bridge technology, cross-chain AMM, aggregative cross-chain communication, the SYN token, Synapse Chain, and optimistic security approaches. With Synapse’s generalized messaging system, any form of data can be securely and seamlessly transmitted across chains. This eliminates the need to deploy applications separately across multiple blockchains, as they can be deployed on a single chain and communicate with others to offer the same user experience from a centralized application layer. Generic message passing also encompasses smart contract calls, enabling easy interoperability between smart contracts on different chains. Synapse Bridge enables users to seamlessly swap on-chain assets across 15+ EVM and non-EVM blockchains in a secure manner. The bridge supports two types of bridging: Canonical Token Bridging, involving the bridging of wrapped assets across chains, and Liquidity-based Bridging, enabling the bridging of native assets across cross-chain stableswap pools. Synapse Chain, an Ethereum-based optimistic rollup, serves as a sovereign execution environment for cross-chain use cases. It furnishes developers with a generalized smart contract interface to construct natively cross-chain use cases by leveraging Synapse’s cross-chain messaging system. Applications developed on Synapse Chain can execute their business logic across any blockchain. Synapse supports multiple EVM-compatible blockchains and is integrated with nearly 18 layer-1 and layer-2 chains, including Ethereum, Optimism, Arbitrum, Harmony, Avalanche, Polygon, Moonbeam, Fantom, and BNB Chain.