Babylon is a groundbreaking Bitcoin staking protocol that enables BTC holders to earn yield on their Bitcoin for the first time without wrapping, bridging, or giving up custody — by using native Bitcoin staking to provide economic security to Proof-of-Stake chains. The core innovation: Babylon’s cryptographic protocols allow BTC to be locked in a self-custodial Bitcoin script (UTXO) that provides slashable security guarantees to other blockchains, including Cosmos-based chains and potentially Ethereum Layer 2s. If a validator behaves maliciously, their bonded BTC can be ‘slashed’ (destroyed) by the protocol — all enforced by Bitcoin’s own scripting language without wrapping. This makes Bitcoin a security-as-a-service asset: PoS chains pay BTC stakers yield for the security guarantee their bonded BTC provides. Babylon launched its mainnet in 2024 and immediately attracted billions in BTC deposits from holders seeking yield on their otherwise idle holdings. BABY is the Babylon network’s native token for fees and governance of the coordination layer. The protocol is analogous to EigenLayer but for Bitcoin: it extends Bitcoin’s security to other networks the way EigenLayer extends Ethereum’s. Babylon is backed by major investors including Paradigm, Polychain, and Hack VC. The total addressable market — earning yield on Bitcoin’s $1T+ market cap — is among the largest in crypto.
Example: A Bitcoin holder has 5 BTC sitting dormant in a cold wallet earning 0%. Via Babylon, they lock the BTC in a self-custodial script and opt into securing a Cosmos chain. The chain pays them 5% APY in its native token for the security guarantee. The BTC never leaves Bitcoin’s blockchain; no bridge or wrapped token is involved. After 6 months they unstake — 5 BTC returns plus accumulated yield. Bitcoin finally earns yield natively.
Learn more: Babylon Labs
