Bridge Dependencies

Circle's Cross-Chain Transfer Protocol moves native USDC by burning on the source chain and minting on the destination, gated by Circle's off-chain attestation service. Using canonical CCTP removes third-party lock-and-mint bridge risk; the trust assumption reduces to Circle's availability and attestation finality.

	Protocol / Token	Type	Integration	Details
	Gauntlet gtUSDa	direct	Circle CCTP V2 (native burn/mint)	Bridges USDC across Base/Arbitrum/Optimism to Morpho
	Origin OUSD	direct	Circle CCTP V2	Cross-chain strategies bridge ~42% of TVL to Base and HyperEVM
	Yearn yvUSD	direct	Circle CCTP V2 (CCTPStrategy)	Bridges USDC to Arbitrum (funded, ~3.5%) and Base (added, 0 debt); Katana uses AggLayer separately
	Flex	indirect	Collateral is yvUSD (which bridges via CCTP)

Chainlink's cross-chain interoperability protocol. Messages are validated by the Chainlink DON with a Risk Management Network; tokens move via burn/mint or lock/mint token pools.

	Protocol / Token	Type	Integration	Details
	Apyx apxUSD	direct	Chainlink CCIP	Uses CCIP for cross-chain transfers (no LayerZero dependency)
	Centrifuge JAAA	direct	Chainlink CCIP (2-of-2 MultiAdapter)	Second half of the 2-of-2 quorum alongside LayerZero V2
	InfiniFi	direct	Chainlink CCIP + LayerZero	Cross-chain support added in PR 224
	Maple (syrupUSDC)	direct	Chainlink CCIP (LockReleaseTokenPool)

Generic cross-chain messaging. Tokens bridge via the OFT / OFT-Adapter standard; security depends on the configured DVN (Decentralized Verifier Network) set and the token's mint/burn authority on each chain.

	Protocol / Token	Type	Integration	Details
	Across Protocol	direct	LayerZero OFT	Standard cross-chain transfers
	Cap stcUSD	direct	LayerZero vault component
	Centrifuge JAAA	direct	LayerZero V2 (2-of-2 MultiAdapter)	2-of-2 quorum with Chainlink CCIP; 5 DVNs on the LZ side
	fxUSD	direct	LayerZero OFT	Omnichain bridging
	InfiniFi	direct	LayerZero + Chainlink CCIP	Cross-chain support added in PR 224
	Midas mGLOBAL	direct	LayerZero / Axelar	Shares bridge infrastructure with mHYPER
	Midas mHYPER	direct	LayerZero OFT Adapter	Adapter holds MINTER and BURNER roles
	Paxos USDG	direct	LayerZero V2 OFT	Cross-chain bridging (Ethereum↔Solana, X Layer, Ink); 45M USDG capacity
	Re (reUSD)	direct	LayerZero OFT	ReMintBurnAdapter pattern; live on Avalanche, Arbitrum, Base, BNB; 2.5M/24h rate limit
	Resolv RLP	direct	LayerZero OFT	Standard cross-chain transfers via Stargate
	Resolv wstUSR	direct	LayerZero OFT	Available on Ethereum, Arbitrum, Base, Plasma
	Sky USDS	direct	LayerZero V2 OFT Adapters	Bridging to Solana + Avalanche (~$48.7M locked); 2-of-2 DVN config
	Fluid	indirect	rsETH market exposure
	KernelDAO hgETH	indirect	Wraps rsETH (Kelp DAO)