CCIP contracts and interfaces reference

Chainlink Cross-Chain Interoperability Protocol (CCIP) provides secure cross-chain messaging and token transfers between blockchain networks.

This section is for on-chain integration (contracts, interfaces, and program modules). CCIP also exposes HTTP APIs for different jobs:

• Directory and configuration REST API (v1) — JSON for supported chains, tokens, and lanes served from docs.chain.link. Planned for deprecation soon; timelines and migration steps will be published with the CCIP Tools documentation. Until then: interactive reference /api/ccip/v1/docs; machine-readable spec /api/ccip/v1/openapi.json. Prefer the CCIP Tools REST API (v2) for new integrations where it meets your needs.
• CCIP Tools REST API (v2) — messages, lane latency, intents, and related tooling. See the CCIP Tools API documentation and CCIP Tools overview.

Platform-specific contracts and interfaces on this site:

• EVM-based blockchains: Solidity interfaces and contracts for CCIP on Ethereum Virtual Machine (EVM) compatible chains.
• Solana: SVM program interfaces for CCIP on Solana.
• Aptos: Move module interfaces for CCIP on Aptos.
• TON: TON contract interfaces for CCIP on TON.