Introducing VaultBridge Protocol: Expanding Agglayer optionality by enabling EVM chains to earn revenue from their TVL

With CDK OP Stack, it's possible for new and existing OP Stack Chains to connect to the Agglayer.

Following the release of the CDK OP Stack configuration comes VaultBridge Protocol.

While we’re still busy deploying the Agglayer to new and existing OP Stack Chains, we wanted to highlight a new initiative that expands the Agglayer's optionality: enabling EVM chains to earn revenue from their TVL.

The Agglayer’s VaultBridge is a customizable yield-generating mechanism for providing L2s with a native revenue stream. It’s designed to help EVM chains move toward a more durable, less extractive economic model for funding ecosystem growth.

VaultBridge transforms idle bridged assets into productive capital—generating sustainable, protocol-native revenue for Layer 2s (L2s). For Agglayer-connected chains, there are no fees. By design, all the assets of chains using VaultBridge are segregated from assets on Agglayer that do not use VaultBridge.

VaultBridge is powered by Morpho, the immutable lending protocol built on Ethereum’s ERC-4626 vault standard, with Gauntlet and Steakhouse Financial providing best-in-class risk management. With no changes to existing bridge flows, chains can generate revenue on bridge deposits of ETH, USDC, USDT, and WBTC out-of-the-box. VaultBridge can also support additional tokens—like your chain’s native gas token, for example.

No bespoke integrations required; VaultBridge is compatible with any EVM chain, designed primarily for new L2s, but compatible with existing chains and bridges, too. NOTE: for existing EVM chains, VaultBridge doesn’t replace the canonical bridge—only net-new bridged assets earn yield, rather than moving existing bridge deposits. Chains can configure VaultBridge to give users the option to participate or opt-out.

And once Agglayer supports integration with non-EVM chains, VaultBridge will be compatible with blockchain architectures outside the Ethereum ecosystem.

Purpose-built for the next generation of rollups, VaultBridge is a better-in-every-way alternative to value-extractive revenue models.

Revenue generated by VaultBridge grows alongside a chain’s TVL, and can be distributed pursuant to the chain’s governance. This means that revenue scales with adoption—not inflation.

How VaultBridge works

Vaults are managed by Gauntlet and Steakhouse Financial, with strategy weights selected based on a chain’s risk profile and vault exposure preference. This ensures yield is produced with institution-grade diligence.

The four-step process is simple:

1. User bridges assets: When users bridge ETH, USDC, USDT, or WBTC, they receive a 1:1 representation of the asset on the chain.

2. Assets are routed to Morpho vaults: The original tokens remain in VaultBridge and are deposited into the corresponding Morpho vaults.

3. Strategies are professionally managed: Vault capital is deployed into yield-generating strategies. That strategy is pre-selected and maintained by independent, best-in-class risk curators according to that chain’s goals.

4. Revenue flows back to the chain (and its ecosystem): Yield generated from VaultBridge is streamed back via native VaultBridge contracts to the chain to be distributed according to how it sees fit. Agglayer-connected chains receive 100% of the revenue, while non-Agglayer chains will be subject to a fee.

For users, once deposited, they receive a 1: