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  1. Home
  2. /Glossary
  3. /Cross-Chain Messaging
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blockchain

Cross-Chain Messaging

Protocols that enable smart contracts on different blockchains to communicate with each other.

Definition

Protocols that enable smart contracts on different blockchains to communicate with each other. Unlike bridges that just move tokens, messaging protocols send arbitrary data and function calls across chains. Chainlink CCIP, LayerZero, and Hyperlane are major cross-chain messaging systems.

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Related Terms

Cross-Chain

The ability to move assets, data, or messages between different blockchain networks.

LayerZero

An omnichain interoperability protocol that lets smart contracts communicate across blockchains.

Interoperability

The ability of different blockchains to communicate and work together.

ABI

Application Binary Interface.

Account Abstraction

A way to make crypto wallets behave more like normal apps by turning every account into a smart contract.

ERC-4337

The Ethereum standard for account abstraction without changing the core protocol.

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