- Trustless BTCVaults aim to use Bitcoin as on-chain collateral without wrappers or custodians.
- Babylon’s staking previously reached over $2 billion in total value locked.
- An integration with Aave V4 is planned by April 2026 to bring native Bitcoin collateral into DeFi.
Babylon is working to expand Bitcoin’s role within on-chain finance after receiving new backing from venture firm a16z Crypto.
The funding supports Babylon’s transition from a single-purpose staking platform into broader financial infrastructure built directly on Bitcoin.
Rather than focusing solely on yield, the project positions BTC as usable collateral across lending and other decentralized applications without relying on wrapped tokens or custodial bridges.
This shift reflects a growing effort in crypto markets to unlock capital efficiency from Bitcoin’s large but largely inactive supply while keeping security anchored to the Bitcoin network itself.
a16z Crypto Investment
On December 7, a16z Crypto announced a $15 million investment in Babylon via the purchase of BABY tokens.
Babylon originally launched as a Bitcoin staking protocol that allows BTC holders to earn yield without transferring assets off the Bitcoin network.
The company said the investment signals confidence in Babylon’s approach to expand Bitcoin’s functionality beyond staking while preserving the network’s core security assumptions.
a16z framed the project as a potential neutral alternative to wrapped-BTC models that currently dominate decentralized finance but introduce dependence on issuers, custodians, or multisig arrangements.
Explaining Trustless BTCVaults
Babylon is now expanding into lending infrastructure through what it calls Trustless BTCVaults.
These vaults are designed to let Bitcoin serve as verifiable on-chain collateral without bridges, wrappers, or custodians.
The architecture relies on cryptographic tools such as witness encryption and specialized circuit constructions to enable conditional execution directly tied to Bitcoin transactions.
The goal is to enable interactions between Bitcoin and decentralized applications while keeping assets native to the Bitcoin network.
According to a16z, this design could reduce counterparty and settlement risks that arise when BTC is represented on other chains as synthetic tokens.
Babylon’s approach targets the vast pool of dormant Bitcoin capital—estimated at over $1.4 trillion—by making it available for lending, loans, and other capital-efficient use cases.
Founders and Technical Roots
Babylon was founded by David Tse and Fisher Yu.
Tse is a Stanford professor known for his academic work in information theory and blockchain research.
a16z highlighted Tse’s long history mentoring crypto founders and researchers as part of its rationale for backing the project.
The firm presented the investment as support for technically driven infrastructure that could change how Bitcoin is integrated into decentralized finance, rather than incremental improvements to existing staking models.
From Staking to DeFi Integration
Babylon’s staking protocol previously attracted significant demand.
Earlier staking caps recorded more than $2 billion in total value locked, with institutional custodians such as BitGo and exchange partners like Kraken participating.
Recently, development has shifted toward BTCVaults and native Bitcoin lending.
In early December 2025, Babylon and Aave announced plans for native Bitcoin to be accepted as collateral in Aave V4.
The proposed integration includes Aave’s first Bitcoin-supported “spoke,” enabling lending and borrowing against BTC without converting it into ERC-20 tokens.
The launch is expected around April 2026.
If successful, the effort could open new decentralized financial markets built directly on Bitcoin, with potential extensions into perpetual futures, stablecoins, and other financial primitives.