Babylon Labs' temperature-check proposal for Aave V4 integration has gained significant momentum, with Aave founder Stani Kulechov publicly endorsing the initiative and outlining a comprehensive 12-month strategic plan. As reported by AMBCrypto, the proposal introduces two custom Aave V4 'Spokes' that would onboard Bitcoin through Babylon's Trustless Bitcoin Vaults (TBV) system, enabling users to borrow against native Bitcoin collateral without relying on wrapped BTC, bridges, or custodians. The system uses Taproot-based vault scripts and introduces a non-transferable asset called vaultBTC to represent BTC locked in Babylon vaults as collateral in Aave V4. Kulechov's endorsement highlights the proposal's potential to bring billions of BTC liquidity into Ethereum DeFi markets, representing the first novel Spoke implementation for Aave V4.
The proposed system operates without traditional wrapped Bitcoin designs by keeping the underlying BTC on Bitcoin itself through cryptographic proofs. As reported by AMBCrypto, Babylon's proposal introduces a non-transferable accounting asset called vaultBTC that represents BTC locked in Babylon vaults as collateral in Aave V4. The vaultBTC token would not function as a traditional wrapped Bitcoin token and could only interact with approved Aave contracts. The system relies on Taproot scripts, challenge windows, and zero-knowledge proofs to validate collateral redemption conditions across chains. According to the latest reports, the collateral remains on Bitcoin with cryptographic proofs feeding the Spoke, ensuring no custodian holds the BTC, no multisig signs withdrawals, and no bridge contract can be exploited. This trustless approach addresses the concerns that have stalled the wrapped BTC market, which has peaked above $10 billion in supply but stalled as users grew uncomfortable with custodian risk after several bridge failures across 2022 and 2023.
According to the proposal highlighted by AMBCrypto, Aave V4's Hub-and-Spoke architecture could support isolated custom lending systems without affecting the broader protocol. The proposal includes a separate BTC Vault Swap Spoke designed to handle liquidations and delayed Bitcoin settlement flows. Aave founder Stani Kulechov confirmed on May 25, 2026 that the Babylon team has submitted the first novel Spoke implementation proposal for Aave V4, bringing native BTC as collateral without BTC ever leaving the Bitcoin network. The proposal represents the first time an outside team has proposed a novel Spoke rather than a copy of an existing pattern, making the technical review for governance more involved than a typical asset listing. If accepted by governance, the Babylon Spoke would give Aave a trustless BTCFi product that the wrapped-BTC market has not delivered, and changes which Bitcoin holders can become DeFi borrowers without compromising on custody.
The proposal arrives in a market where Bitcoin is trading at $77,629 as of May 25, 2026, up 1.4% on the day per CoinMarketCap data. The wrapped BTC market has peaked above $10 billion in supply but stalled as users grew uncomfortable with custodian risk after several bridge failures across 2022 and 2023. As noted by AMBCrypto, if accepted by governance, the Babylon Spoke would give Aave a trustless BTCFi product that the wrapped-BTC market has not delivered. The proposal is currently at the discussion stage with Aave governance requiring an ARFC, Snapshot vote, and on-chain AIP before deployment, each stage historically taking weeks. Meanwhile, Aave has generated $141 million in revenue recently, driven by its diversified revenue streams and expanding GHO stablecoin adoption.
