Background FAQs
What is CCTP?
Circle’s Cross-Chain Transfer Protocol (CCTP) is a permissionless on-chain utility that facilitates USDC transfers securely between blockchains via native burning and minting of USDC.
What does CCTP solve?
Blockchain networks often operate in isolation, unable to communicate with each other. While some networks, like Cosmos, have protocols (IBC) to share data across their own blockchains, isolated networks like Ethereum and Avalanche can't directly interact. CCTP enables the transfer of vast amounts of stablecoin liquidity between networks.
Some bridging protocols may try to launch a faux USDC to act as a stand-in for native USDC. Faux USDC is not eligible for conversion to native USDC and is highly discouraged by Circle. Some inherent risks of using custom USDC include running out of bridge liquidity, not being backed 1:1 (stablecoin depeg event), and the addition of modified functions.
Why would a blockchain want CCTP?
CCTP allows both users and developers to easily source native USDC from any CCTP-supported network, vastly simplifying the process of bringing liquidity to a blockchain. With native USDC backed 1:1 by fiat, the stability and trust provided make it easy for dapps to access and utilize liquidity efficiently.
What is the process for blockchains to get CCTP?
Blockchains can gain access to CCTP by:
Paying for native USDC issuance
The typical process for a blockchain to get CCTP is by upgrading the Bridged USDC Standard contracts to native USDC. Eligibility is based on a holistic review of token holder counts, dapp integrations, distributed supply, etc. The upgrade criteria to CCTP is intentionally vague and is evaluated on a case-by-case basis.
Upgrading from the Bridged USDC Standard to Native USDC with CCTP could take over a year, depending on your blockchain's growth and adoption.
Is there a quicker and easier way for my blockchain to get CCTP?
Yes!
Proto provides a streamlined solution for blockchains that want to leverage the benefits of CCTP without the lengthy process of fully integrating Circle’s native CCTP. Essentially, blockchains get CCTP early.
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