Oxygen
Oxygen is a DeFi prime brokerage service built on Solana and powered by Serum's on-chain infrastructure. Built to support 100s of millions of users, it serves as a permissionless, cheap, and scalable protocol that democratizes borrowing, lending, and trading with leverage and allows you to make the most of your capital. With Oxygen, you can earn yield, borrow from peers, trade directly out of your pools, and get trading leverage against a portfolio of assets. It provides a more efficient way to manage capital and is unique from other borrow lending protocols in three ways. Oxygen is 100% decentralized, 100% non-custodial, and 100% on-chain. All transactions are purely peer-to-peer with no involvement from a centralized operator. Oxygen protocol never has access to your private keys at any point.
Learn more
Teller
Teller is a decentralized lending protocol that offers time-based, no-margin-call loans using any Ethereum asset or ERC-20/NFT as collateral, enabling borrowers to access liquidity for 1–30 days without being liquidated due to price fluctuations so long as they repay on time; collateral is placed in isolated escrow vaults and loans can be refinanced or extended based on prevailing offers. Lenders create custom loan terms and keep supplied funds in their own wallets, allowing them to make unlimited offers with the same capital while retaining control, and if a borrower defaults, liquidity providers have first refusal to liquidate and seize collateral. The system emphasizes safety and transparency with audited smart contracts (insured by Sherlock up to defined limits), and it supports isolated pools and perpetual-style structures to give users credit-like access to DeFi capital.
Learn more
Liquidium
Liquidium is a decentralized Bitcoin lending protocol where users can borrow BTC against Ordinals, Runes, and BRC-20 tokens, and lend BTC to earn up to 380% APY. Borrowers can secure Bitcoin loans using their digital assets as collateral, with inscriptions safely locked in a Discreet Log Contract (DLC) until repayment, ensuring a secure and fast process. Lenders provide BTC and earn interest; if the borrower repays, the lender receives the BTC plus interest, and if not, the lender receives the collateral. All transactions are natively secured on the Bitcoin blockchain, with no wrapping or bridging, just Bitcoin. Liquidium's non-custodial escrows use DLCs to securely store collateral during a Bitcoin loan. It supports borrowing and lending against Bitcoin assets like Ordinals, Runes, and BRC-20 tokens. Lend your BTC and earn interest; each loan is secured by an inscription in a Bitcoin DLC.
Learn more
Arch
Arch Lending offers crypto-backed loans that enable digital-asset holders to unlock liquidity without selling their holdings. You can pledge Bitcoin, Ethereum, or Solana as collateral, receive funding in fiat USD or USDC, pay no credit check, access funds usually within the same day, and avoid asset rehypothecation. Your collateral remains in qualified custody and is never lent out or otherwise deployed. From an APR starting at around 9.50 %, loans feature flexible terms (up to 24 months), optional pay-down or roll-over, and the ability to increase your borrowing as your collateral appreciates. The platform emphasises trust and security, stating that the business model does not make use of the client’s assets and all collateral is held one-to-one in secure custody. Arch aims to support both individual and institutional borrowers, with specialist services for “private wealth” clients and bespoke institutional lending.
Learn more
