circle-cctp
Installation
SKILL.md
Circle Cross-Chain Transfer Protocol (CCTP)
CCTP is a permissionless onchain utility that securely transfers USDC between supported blockchains by burning tokens on the source chain and minting them on the destination chain. Circle created CCTP to improve capital efficiency and reduce trust assumptions compared to traditional lock-and-mint bridges.
When to Use This Skill
Use this skill when:
- Implementing USDC crosschain transfers with burn-and-mint
- Working with Circle's Attestation Service (Iris API)
- Understanding CCTP domains and chain mappings
- Choosing between Fast Transfer and Standard Transfer
- Calculating fees for crosschain transfers
- Implementing hooks for post-transfer automation
- Debugging attestation or finality issues
- Integrating with Bridge Kit SDK