- Trustless BTCVaults aim to use Bitcoin as on-chain collateral without wrappers or custodians.
- Babylon’s staking pools previously exceeded $2 billion in total value locked.
- An integration with Aave V4 is expected to bring native Bitcoin collateral to DeFi by around April 2026.
Babylon is expanding Bitcoin’s role in on-chain finance after receiving new backing from venture firm a16z Crypto.
The investment supports Babylon’s evolution from a single-purpose staking platform into a broader financial infrastructure built natively on Bitcoin.
Rather than focusing solely on yield, the project positions BTC as usable collateral across lending and other decentralized applications while avoiding reliance on wrapped tokens or custodial bridges.
This shift reflects growing pressure across crypto markets to unlock capital efficiency from Bitcoin’s large but largely idle 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 through the purchase of Babylon’s native BABY tokens.
Babylon was initially developed as a Bitcoin staking protocol that enables BTC holders to earn yield without transferring assets off the Bitcoin network.
The company said the investment signals confidence in Babylon’s approach to expanding Bitcoin’s functionality beyond staking while preserving Bitcoin’s core security assumptions.
a16z described the project as a potential neutral alternative to wrapped-BTC models, which currently dominate decentralized finance but introduce dependencies on issuers, custodians or multi-signature setups.
Trustless BTCVaults explained
Babylon is now extending into lending infrastructure with a design it calls Trustless BTCVaults.
These vaults are intended to allow Bitcoin to be used as verifiable on-chain collateral without bridges, wrappers or custodians.
The architecture uses cryptographic techniques such as witness encryption and garbled circuits to enable conditional execution tied directly to Bitcoin transactions.
The goal is to let Bitcoin interact with decentralized applications while remaining native on its own network.
According to a16z, this design can reduce counterparty and settlement risks that arise when BTC is represented on other blockchains using synthetic tokens.
Babylon’s approach targets the vast pool of Bitcoin capital that is currently idle—estimated at over $1.4 trillion—by making it available for lending, credit and other capital-efficient uses.
Founders and technical roots
Babylon was founded by David Tse and Fisher Yu.
Tse is a professor at Stanford University known for his academic work in information theory and blockchain research.
a16z highlighted Tse’s long-standing role advising crypto founders and researchers as part of the rationale for supporting the project.
The firm framed the investment as backing technically driven infrastructure that could reshape how Bitcoin integrates with decentralized finance, rather than just incremental improvements to existing staking models.
From staking to DeFi integration
Babylon’s staking protocol has previously drawn significant demand.
Earlier staking pools recorded more than $2 billion in total value locked, with participation from institutional custodians and exchange partners.
Recent development has moved toward BTCVaults and native Bitcoin lending.
In early December 2025, Babylon and Aave announced plans to enable native Bitcoin as collateral on Aave V4.
The proposed integration includes Aave’s first Bitcoin-backed “Spoke,” which would allow borrowing and lending against BTC without converting it into ERC-20 tokens.
Deployment is expected around April 2026.
If successful, the effort could open new DeFi markets built directly on Bitcoin’s base layer, with potential extensions into perpetual futures, stablecoins and other financial primitives.