Move USDC to and from Stellar with CCTP

CCTP is now supported on Stellar.

In this Release Notes episode, @Hui Jing from Circle DevRel explains what changed, how Stellar fits into CCTP, and what developers should know when building USDC flows to or from Stellar.

CCTP, or Cross-Chain Transfer Protocol, is Circle’s burn-and-mint protocol for moving USDC across supported blockchains. With Stellar support, builders can include Stellar in CCTP-powered USDC transfer flows.

This episode covers:

• Stellar’s CCTP domain ID: 27
• How CCTP message address handling differs on Stellar
• When to use the CctpForwarder contract
• Why user and muxed accounts need a USDC trustline
• How Stellar’s seven-decimal USDC precision maps to CCTP’s six-decimal message amounts

Resources:

• Supported domains table: [https://developers.circle.com/cctp/concepts/supported-chains-and-domains]
• Stellar contract addresses: [https://developers.circle.com/cctp/references/stellar-contracts]
• Stellar technical overview: [ https://developers.circle.com/cctp/references/stellar ]
• Quickstart: transfer USDC to and from Stellar: [https://developers.circle.com/cctp/quickstarts/transfer-usdc-stellar-arc ]