Interchain communication is a critical feature for blockchain networks aiming to support a wide range of applications and services. Polkadot’s design inherently supports interchain communication through its Relay Chain and parachains, enabling seamless data and asset transfers across different blockchains within its ecosystem. This capability is facilitated by the Cross-Chain Message Passing (XCMP) protocol, ensuring secure and efficient communication. NEAR, while primarily focused on optimizing its single-chain performance, also recognizes the importance of cross-chain interactions. The Rainbow Bridge connects NEAR to Ethereum, allowing for interoperability between the two networks and enabling assets and smart contracts to move freely. While Polkadot’s architecture is built around native interchain communication, NEAR’s strategic bridges