Hobba

[[PROJECT:2020]] Hobba is a Solana lending protocol that automates borrowing against crypto collateral. Rather than sending a user's borrow to a single venue, Hobba splits and routes it across multiple integrated lenders to secure the lowest available rate at any given moment. Meanwhile, the posted collateral is put to work in yield-generating positions, and that yield is harvested daily and applied directly against the outstanding debt — the mechanism behind the platform's self-repaying loans description.

How the Rate Routing Works

The core premise is that borrowing rates across Solana's DeFi ecosystem move constantly, and most users pay more than necessary because they stay wherever they opened a position. Hobba monitors rates across [[PROJECT:303]] Kamino Finance, [[PROJECT:219]] Jupiter, [[PROJECT:222]] Marginfi, [[PROJECT:1016]] Perena, and other audited Solana protocols, then distributes a user's borrow to whichever combination produces the lowest blended rate. The rebalancing is automatic; users do not interact with each underlying protocol directly.

On the collateral side, deposits earn passive yield through strategies layered on top of the same integrated protocols. That yield is not compounded back into the collateral position but redirected to reduce the loan balance. Over time, a position can shrink its own debt without the borrower making any manual repayment, provided the collateral yield outpaces the borrow cost and the market cooperates.

Sonnar: Hobba's Risk Engine

The protocol's risk layer is a proprietary system called Sonnar. Hobba describes Sonnar as monitoring each position block-by-block, watching the loan-to-value ratio, collateral prices, and available liquidity across the underlying venues simultaneously.

Each position is managed in isolation rather than pooled. There are no shared vaults and no socialized losses. If one borrower's position deteriorates, it does not affect another's. When a position's LTV climbs toward a threshold, Sonnar deleverages it automatically, and when conditions improve, it can re-optimize. The protocol recommends borrowers stay below 40% LTV for passive management; Hobba can auto-borrow up to a 60% LTV ceiling on behalf of users who opt into more active strategies.

Deposits and withdrawals are unrestricted. There are no lock-up periods, and liquidity can be moved in and out at will, which reduces the risk of a user being trapped in a deteriorating position.

Supported Collateral

At launch Hobba accepts SOL and cbBTC as collateral. Both assets can be posted simultaneously or independently. The yield strategies applied to each differ depending on what opportunities are available through the integrated protocol set.

Security

Hobba completed a security audit with Ackee Blockchain Security, and the audit report is publicly available. The protocol integrates only with what it describes as audited and battle-tested Solana DeFi platforms, which is the stated rationale for the current short list of integrated lenders.

Early Traction and Recognition

Hobba launched in the fourth quarter of 2025. In September 2026 the team competed at Demo Day during the Solana Summit organized by Superteam Balkans, finishing in second place. The result added external visibility to a protocol that had until then been relatively quiet publicly.

The product is live at app.hobba.io. The team has described a waitlist for early users, suggesting controlled onboarding rather than fully open access at this stage.

Context in the Solana Lending Market

Solana's lending market has a competitive set of established protocols with significant TVL. The differentiation Hobba targets sits at the aggregation layer: rather than competing on a single rate, it attempts to persistently deliver a better rate than any single-venue position by fragmenting exposure across the market. The yield-applied-to-debt mechanic is a distinct product choice that shifts the user's mental model from managing a loan to letting a position pay itself down.

The reliance on integrated venues means Hobba's risk surface includes the underlying protocols. Any smart contract failure or liquidity crisis at a partner would propagate to Hobba positions. The Sonnar engine's per-position isolation limits but does not eliminate that contagion path.

For Solana specifically, Hobba's architecture takes advantage of the chain's low transaction costs, which make frequent rebalancing across multiple protocols economically viable in a way that would be prohibitive on higher-fee networks.