CCTP API - Circle Docs

CCTP is permissionless and open to any wallet. It natively transfers USDC and EURC through burn-and-mint, and supports permissionless wrapping of third-party assets through lock-and-mint. All transfers use Circle’s production attestation infrastructure. No API key required.

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CCTP documentation

Learn how Cross-Chain Transfer Protocol works.

Supported chains and domains

See which blockchains CCTP supports and the domain IDs you’ll need.

Endpoint categories

CCTP

Current endpoints for messages, attestations, and burn fees.

CCTP V1 (Legacy)

Legacy endpoints for existing V1 integrations.