Omnichain refers to the ability of a token or protocol to operate seamlessly across multiple blockchains while maintaining a single, unified supply and state.

Unlike multi-chain or cross-chain setups, where tokens exist as separate instances or wrapped versions on each network, omnichain architectures use cross-chain messaging and smart contract coordination to let assets move natively between chains.

Omnichain designs reduce fragmentation, improve liquidity, and enable a more connected, composable user experience, allowing assets and protocols to function as one across chains.