- Trustless BTCVaults aim to use Bitcoin as native on-chain collateral without wrapped tokens, bridges, or custodians.
- Babylon’s prior staking programs at one point exceeded $2 billion in total value locked.
- Integration with Aave V4 is expected to bring native Bitcoin collateral into DeFi by April 2026.
Babylon is working to expand Bitcoin’s role in on-chain finance, now backed by venture capital firm a16z Crypto.
This investment supports Babylon’s transition from a single-purpose staking protocol toward a broader financial infrastructure built natively on Bitcoin.
Rather than merely focusing on yield-bearing staking, the project is positioning BTC as usable collateral across lending and other decentralized applications while avoiding reliance on wrapped tokens, custodial bridges, or third-party issuers.
That shift reflects growing demand in crypto markets to unlock capital efficiency from a large but mostly idle Bitcoin supply, while keeping security anchored directly to the Bitcoin network.
Investment from a16z Crypto
On December 7, a16z Crypto announced a $15 million investment in Babylon, executed through the purchase of native BABY tokens.
Babylon was originally developed as a Bitcoin staking protocol that allowed BTC holders to earn yield without moving assets off the Bitcoin network.
The firm said the investment signals confidence in Babylon’s approach to extend Bitcoin’s functionality beyond staking, while preserving Bitcoin’s core security assumptions.
a16z described the project as a potentially neutral alternative to wrapped BTC models that currently dominate parts of DeFi but introduce dependencies on issuers, custodians, or multisig arrangements.
Explaining Trustless BTCVaults
Babylon is now expanding into lending infrastructure with what it calls Trustless BTCVaults.
These vaults are designed to let Bitcoin act as verifiable on-chain collateral without bridges, wrappers, or custodians.
The architecture relies on cryptographic techniques—such as witness encryption and specially constructed circuits—to enable conditional execution tied directly to Bitcoin transactions.
The goal is to allow Bitcoin to interact with decentralized applications while remaining native on its own chain.
a16z says this design could reduce counterparty and settlement risks that emerge when BTC is represented on other blockchains via synthetic tokens.
Babylon’s approach targets a large pool of idle bitcoin capital—estimated at over $1.4 trillion—by enabling its use in lending, credit markets, and other capital-efficient use cases.
Founders and technical roots
Babylon was founded by David Tse and Fisher Yu.
Tse is a professor at Stanford University known for his academic contributions to information theory and blockchain research.
a16z highlighted Tse’s long-standing role mentoring founders and researchers in crypto as part of its rationale for backing the project.
The firm framed the investment as support for technically driven infrastructure that could change how Bitcoin integrates with 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 saw more than $2 billion in total value secured, with participation from institutional custodians such as BitGo and exchange partners including Kraken.
Development has recently shifted toward BTCVaults and native Bitcoin lending.
In early December 2025, Babylon and Aave announced plans for native Bitcoin to be accepted as collateral on Aave V4.
The proposed integration includes Aave’s first Bitcoin-backed “Spoke,” enabling borrowing and lending against BTC without converting it to ERC-20 tokens.
The launch is expected around April 2026.
If successful, this integration could open new decentralized financial markets built directly on Bitcoin’s base layer, with potential extensions into perpetual futures, stablecoins, and other financial primitives.