- Trustless BTCVaults aim to use Bitcoin as on‑chain collateral without wrappers or custodians.
- Babylon’s staking caps previously 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 pushing to expand Bitcoin’s role in on‑chain finance, following fresh backing from venture capital firm a16z Crypto.
The investment supports Babylon’s transition from a single-purpose staking platform to a broader financial infrastructure built directly on Bitcoin.
Rather than focusing solely on yield, the project positions BTC as usable collateral for loans and other decentralized applications without relying on wrapped tokens or custodial bridges.
This shift reflects growing pressure in crypto markets to unlock capital efficiency from the large but largely idle supply of Bitcoin while keeping security anchored to the Bitcoin network itself.
Investment from a16z Crypto
On December 7, a16z Crypto announced a $15 million investment in Babylon through the purchase of native BABY tokens.
Babylon was originally developed as a Bitcoin staking protocol that lets BTC holders earn yield without moving assets off the Bitcoin network.
The firm said the investment reflects confidence in Babylon’s approach to extending Bitcoin’s functionality beyond staking while preserving Bitcoin’s fundamental security assumptions.
a16z described the project as a potential neutral alternative to wrapped‑BTC models that currently dominate decentralized finance but introduce dependency on issuers, custodians, or multisignature structures.
Explaining Trustless BTCVaults
Babylon is now expanding into lending infrastructure through what it calls Trustless BTCVaults.
These vaults are designed to allow Bitcoin to serve as verifiable on‑chain collateral without bridges, wrappers, or custodians.
The architecture relies on cryptographic techniques such as witness encryption and specialized 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 could reduce counterparty and settlement risks that arise when BTC is represented on other blockchains via synthetic tokens.
Babylon’s approach targets the vast pool of dormant Bitcoin capital—estimated at more than $1.4 trillion—by enabling it to be put to work 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 contributions in information theory and blockchain research.
a16z highlighted Tse’s long‑standing role mentoring founders and crypto researchers 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 incrementally improving 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 like BitGo and exchange partners including Kraken participating.
Development has recently shifted toward BTCVaults and native Bitcoin lending.
In early December 2025, Babylon and Aave announced that native Bitcoin would be accepted as collateral for 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 work could open new decentralized financial markets built directly on Bitcoin’s base layer, with potential expansions into perpetual futures, stablecoins, and other financial primitives.