Lending inside Serevin

Which lending network is connected?

Morpho is the general-purpose lending network listed in Robinhood Chain’s official ecosystem directory and the only external lending deployment currently reviewed in this application. Five reviewed USDG markets appear in the registry. That does not establish that no other lender exists.

Spark, Maple, Midas and Ethena assets can appear as collateral in those markets. They are not four additional lending engines integrated into Serevin. Uniswap, Rialto and Route provide trading or routing capabilities rather than the same lending service.

Serevin also has its own locally implemented isolated markets and funded term-credit contracts. They remain separate from Morpho and require their own release, funding and risk settings.

The direct lending flow

Manage market opens the native lending desk in Serevin. It prepares supply, withdrawal, collateral deposit, collateral withdrawal, borrowing, partial repayment and full debt-share repayment. An optional source link remains under market details for independent inspection.

The wallet calls the reviewed Morpho contract directly. Position ownership and output recipients are fixed to the connected wallet. Serevin does not receive custody or a broad delegation to manage the position. Each token allowance is limited to the required amount, with a zero reset if an existing allowance differs.

The deployment manifest pins the market’s five parameters, market identifier, Morpho runtime, token runtimes and precision, oracle and interest rate model. These are rechecked through the wallet provider before submission. Identity checks do not prove an oracle is economically sound, that a token cannot be frozen, or that liquidity will remain available.

The oracle review also records known vault and feed addresses, empty feed slots, feed runtimes and the aggregator behind a mutable feed proxy. A feed-address, aggregator or code change blocks new exposure until reviewed again. Supply withdrawal and repayment remain available; collateral can also be removed without those extra feed checks once the wallet has no debt. The underlying contract still checks every withdrawal.

A recent network block does not imply a newly published collateral valuation. NAV and exchange-rate feeds can publish on different schedules from traded-price feeds. The application does not apply an invented common heartbeat or label an older published valuation as a confirmed failure. Runtime and pointer checks cannot guarantee valuation accuracy or future publication.

What the transaction does and does not bound

The direct supply, borrow, withdrawal and partial-repayment calls specify an exact asset amount. Shares are calculated by Morpho at inclusion. These calls do not contain a minimum-share limit or an onchain deadline. The interface’s review expiry prevents a late wallet submission, but cannot stop a transaction already submitted from mining later.

Full repayment shows an estimated USDG debt at a named block and time, then asks you to choose a separate maximum token spend. The estimate uses the reviewed Morpho and interest-rate contracts, includes interest accrued to that block, and rounds up to the smallest USDG unit. It is not a quote for a future transaction or a suggested spending limit.

Available wallet USDG and the remaining USDG approval to Morpho are shown separately at the same observed block. The full-repayment form warns if your chosen maximum exceeds that observed balance. Missing or stale data is unavailable, not zero. The wallet checks current balances again before submission; the display neither reserves funds nor fills in a maximum for you.

The review binds your current debt shares and chosen maximum allowance. Before each wallet step, Serevin checks the debt estimate again. A cap below the fresh estimate stops the flow before another token approval or repayment is requested. Normal interest changes within your cap can proceed, while a changed debt-share position requires a new review. The app never increases your maximum automatically.

A final contract simulation still checks execution. Interest or other state changes before inclusion can cause repayment to fail. Token approvals are separate transactions: an approval already mined can remain if the next step stops, and an unused allowance can remain after repayment. An unavailable full-debt estimate does not hide your position or disable repayment by an exact amount.

Borrowing and collateral withdrawals must pass Morpho’s health checks. Withdrawals also require available liquidity. A successful preflight simulation does not freeze those conditions. Failed final transactions can leave earlier token approvals in place.

Understand the position before signing

The lending desk separates your supplied USDG, your USDG debt and your collateral. Supplied value and debt include interest accrued to the named observation block. Morpho converts supply shares downward and debt shares upward, so the displayed values can differ from a simple addition or subtraction of token amounts. Any existing market fee and fee-recipient share credit are included in the calculation.

Market lending balance is supply minus borrowing within the selected market. USDG held by Morpho is the token cash shared across all markets at that contract. Your wallet balance is separate from both. A large shared cash balance does not give one market access to another market's lending allocation, and none of these observations reserves liquidity.

Choose a borrow or supply-withdrawal amount yourself. The review shows an estimated position before and after that exact amount only after the same transaction succeeds in a contract simulation at the observation block. The returned asset and share amounts must match the position calculation. Borrowing still depends on the contract's collateral and health checks; withdrawing supplied tokens still depends on your shares and available lending cash.

The preview is an observation, not a maximum borrowing recommendation or a guaranteed future result. Interest, other participants, token controls and network state can change before inclusion. The wallet checks the action again before sending. Unavailable observations remain unavailable, and changing the wallet, market or amount requires a fresh review.

Remove an unused USDG approval

An ERC-20 approval gives a spender permission to transfer tokens from your wallet. The USDG allowance to the reviewed Morpho contract is shared across its five listed markets. It is not a separate market deposit, debt balance or Serevin fee, and it can exceed your current wallet balance.

Choose Review USDG approval revocation in the lending desk to inspect a transaction that sets this permission to zero. The review names the token, spender and observed allowance. Your wallet must confirm the transaction. Opening the review does not send it, and Serevin never revokes an approval automatically.

Revocation does not repay debt, withdraw collateral or move a deposited position. A later supply or repayment may require a new approval. Network gas applies. The token must still accept the approval change; lending-market oracle availability is not a prerequisite for removing token permission.

If the allowance changes after review, start a new review. A successful transaction receipt alone does not establish removal: Serevin also checks the reviewed USDG contract identity and that the allowance is zero. If those checks are unavailable, keep the saved transaction and check its outcome again instead of sending another transaction.

Where Serevin fees can apply

These direct Morpho calls charge no Serevin fee. Underlying market interest, any Morpho market fee and network gas still apply. We have not invented or enabled a borrowing surcharge.

A separately reviewed borrowing router could deduct a disclosed origination fee from the borrowed amount. It would need capped fee terms, constrained authority, clear net proceeds and its own contract review. Users can bypass a Serevin interface fee by using the underlying lending protocol directly.

Existing Serevin contracts provide separate mechanisms for funded-credit fees, routed-swap fees and service membership. Production values remain unset. Neither trading volume, borrowed principal, LP liquidity nor user collateral is automatically protocol revenue.