Behind Lending 2.0: A Protocol Developer Explains
A conversation with Maxim, one of the protocol developers behind Lending 2.0.
Maxim is one of the protocol developers behind Chainflip Lending 2.0. We asked him to walk through what changed, why, and how it works in plain terms. Here's the conversation.
What Lending 2.0 Actually Is
The way Maxim describes it, Lending 2.0 improves capital efficiency. Which is a technical way of saying the same deposit now generates more revenue. It does this through two changes.
First, Chainflip Boost, an existing product that pays BTC liquidity providers a fee for accelerating cross-chain swaps, has been merged with the BTC lending pool. That means BTC suppliers now earn Boost fees on top of standard lending interest.
Second, collateral posted by borrowers is no longer passive. It's now part of the same supply pool, which means it earns yield while backing the loan. That yield often offsets the borrower's interest cost entirely.
Same deposit, more revenue, on both sides of the market.
The old design left yield on the table for both sides
Two problems existed with the original lending design.
"Existing users who were providing liquidity for Boost already had funds sitting on Chainflip, but they couldn't use those funds as collateral to create loans," Maxim explains. "Community members explicitly asked for the ability to use Boost funds as collateral."
Borrowers were the other side of the same problem. They had to post collateral that earned nothing, so they were missing out on the yield available in Chainflip's supply pools. For BTC collateral in particular, that opportunity cost was material, because BTC in the lending pool now also earns Boost fees.
The user flow, in four steps
Maxim walks through what happens when a supplier deposits 1 BTC into Chainflip Lending. Four things kick in.
The user immediately starts earning the BTC pool's supply rate, which is the interest paid by anyone borrowing against the pool.
The user earns a fee whenever Boost is used to accelerate a swap or deposit that draws from the same pool.
If they want, they can open their own loans using the deposited BTC as collateral, without giving up the yield from the two points above.
They can withdraw funds or accumulated fees at any point, up to the pool's available liquidity.
None of these require an opt-in. Supply the asset and everything else follows.
Four safeguards keep supplied funds safe
“Is my money safe?” is the question Maxim gets asked most. His answer breaks into four parts.
1. Overcollateralisation is enforced against oracle prices.
Every loan requires collateral worth more than the loan itself, and that ratio is checked continuously against price oracle feeds. A borrower can't open a loan that would be immediately risky, and an existing loan is liquidated if price movement pushes it into unsafe territory.
2. Liquidations are fine-grained and quick.
Chainflip runs its own on-chain DEX, which is used to execute liquidations at close-to-market rates. The protocol only liquidates the minimum amount needed to restore a healthy position, never the entire loan when a partial repayment would do. Liquidations happen quickly enough to prevent loans from becoming undercollateralised in the first place, which is how bad debt is avoided.
3. A utilisation cap ensures the pool can always liquidate.
Even though collateral is now available for borrowing, the protocol enforces a cap on how much of each pool can be lent out. The point is to guarantee there is always enough on hand to liquidate every open loan simultaneously if the worst case ever arrives. Boost fits this design well, because it generates strong yield for suppliers even at low utilisation.
4. Boost adds theoretical risks, but Boost has a track record.
Boost has been running for two years without losing a single deposit to Bitcoin reorgs or other issues. If you want to understand the Boost-specific risks in depth, the documentation covers them here.
Real yield, without token emissions
Maxim's summary: "Lending 2.0 uses Boost, a highly successful and unique product, to benefit both suppliers and borrowers. It's what makes us more attractive than existing lending markets."
Borrowers get to earn APY on their BTC collateral, which often offsets their borrowing cost entirely. In practice, the real cost of borrowing against BTC on Chainflip is lower than the sticker rate suggests.
BTC suppliers benefit directly through Boost fees. Suppliers of other assets like USDC and USDT benefit indirectly, because Chainflip Lending pulls in borrowers willing to pay competitive rates for stablecoin liquidity.
For a lending market to be attractive over the long run, it needs to generate real yield without depending on external incentives or token emissions. Lending 2.0 does that by routing Chainflip's existing swap fees to a wider set of users.
Try It
Lending 2.0 runs at lp.chainflip.io/lending. Supply BTC to earn from both lending interest and Boost fees, or borrow against your collateral to get liquidity without selling.
Resources
Swap - Start swapping native assets
Lending - Borrow against native Bitcoin
Blog - Product updates and announcements
Chainflip Scan - Track swaps and network activity
Website - Explore Chainflip
Earn with Chainflip:
Boost - Earn fees by providing single-sided liquidity with no IL risk
Stablecoin Strategies - Deposit stablecoins and earn optimized yields
Provide Liquidity - Supply assets to Chainflip's liquidity pools
Stake FLIP - Delegate FLIP and earn staking rewards
Find us:
What is capital efficiency, and why does it matter here?
Capital efficiency is how hard your deposit is working. In older lending markets, collateral sat idle and earned nothing while backing a loan. Lending 2.0 lets the same deposit earn yield and back a loan at the same time, which is what "improved capital efficiency" means in practice.
Can I use Chainflip Lending if I've never used DeFi before?
Yes. The interface handles the technical parts. You deposit an asset, choose whether to borrow against it or just supply and earn, and the protocol takes care of the rest. You can withdraw at any time, up to the pool's available liquidity.
Do I need to opt in to Boost fees when I supply BTC?
No. Any BTC supplied to Chainflip Lending automatically earns a share of Boost fees whenever Boost is used to accelerate a swap. There is no separate product to enable and no extra step.
What happens to my BTC during a Bitcoin reorg?
Chainflip has run Boost, which involves BTC deposits, for two years without losing a single deposit to a reorg. The protocol has protection mechanisms in place, and the full technical detail is in the Boost risks documentation.
