Earn / Borrow

Spine enables fixed-rate lending and borrowing through a unified credit engine powered by the Central Credit Vault. Instead of multi-collateral assets, Spine uses a single collateralized credit architecture where users interact directly with fixed-rate credit books at curated maturities.

Earn:

For lending, users choose a maturity and deposit USDC into that specific credit book. In return, they receive a position that matures into their original USDC plus a fixed amount of interest. The rate is locked at the time of deposit, and returns are settled automatically at maturity. Read more about our lending mechanism at EARN.

Borrowing:

On the borrowing side, users must lock up blue-chip assets like Ethereum and Bitcoin and open a fixed-rate borrowing position directly against a chosen credit book. Each credit book defines its own maturity, fixed rate, and available capacity, giving borrowers a clear structure to select from. Once a maturity is chosen, the borrower receives USDC upfront and commits to repaying the principal plus the fixed interest specified by that credit book at maturity.

To safeguard lenders and maintain stability, If the collateral value drops too much, it can be automatically liquidated to ensure lenders receive their yield. Read more about our borrowing mechanism at BORROWING.