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Parameters and limits ​

Bounds enforced by the app on each action, protocol risk parameters, fees and refresh intervals. Values as of 2026-10-11, mainnet. The app enforces the current values and displays protocol parameters on each market's details page.

Risk parameters ​

MarketCollateral factorReserve factorBorrow capSupply cap (off-chain)
XRP75 %20 %1,000 XRP3,500,000 XRP
USDC.axl80 %20 %2,000 USDC50,000 USDC
XRP/USDC LP35 %0 %Borrowing paused (collateral-only)$95,600
  • Borrow caps are market-wide: the total borrowed from a market cannot exceed the cap. Caps are set at conservative values during the opening phase and raised over time.
  • Supply caps are not enforced by the contracts. The protocol monitors each market and may pause supplying when a cap is reached.
  • Collateral factor changes go through a 48-hour timelock. Other parameters can change without delay. See Protocol overview.

Liquidation parameters ​

Protocol-wide. See Health factor and liquidations.

ParameterValue
Close factor50 %
Liquidation incentive10 %
Protocol seize share2.8 %

Interest rate models ​

Each market uses a jump rate model: the borrow rate rises linearly with utilization up to the kink, then steeply. The borrow rate at the kink equals the multiplier. Displayed on each market's details page under Rate Model.

MarketBase rateBorrow rate at the kinkKinkJump multiplier
XRP0 %5 %80 %85 %
USDC.axl0 %8 %90 %75 %
XRP/USDC LP0 %0 %—0 %

Rates are annualized from per-block values and displayed without compounding. The Slope Below Kink row of the app's Rate Model table is the multiplier divided by the kink, i.e. the rate increase per unit of utilization (6.25 % for XRP, 8.89 % for USDC.axl); the borrow rate reached at the kink is the multiplier itself (5 % and 8 %).

Per-action amounts ​

MarketMinimumMaximum per action
XRP0.01 XRP10,000 XRP
USDC.axl0.01 USDC10,000 USDC
XRP/USDC LP0.000001 LP$1,000 of LP at the oracle price
  • Limits apply per action, not per account. A borrow is also limited by the market's borrow cap and available liquidity.
  • Repay all is not subject to the maximum.
  • The USD maximum of the LP market is not applied to a withdrawal while the oracle price reads 0.
  • Issued-token amounts are limited to 16 significant digits, the maximum the XRPL can encode. 10 and 0.001 are accepted; 10.000000000000001 is rejected.

New markets carry their own bounds, displayed in the app.

Borrow ​

RuleValue
Suggested maximum (80% safe limit)80 % of the available borrow limit, capped by the market's available liquidity. Corresponds to a health factor of 1.25
Borrow disabledAt 100 % of the borrow limit or above, or above the market's available liquidity
WarningHigh utilization — liquidation risk from 80 % of the borrow limit

Repay all ​

The payment carries the debt plus 0.1 % to cover interest accrued during the relay. The market takes exactly the outstanding debt; the surplus remains in the user's proxy and is not returned automatically.

Deadlines ​

ActionDeadline
Borrow, Withdraw, Enable or disable collateral30 minutes
Supply, Repay6 hours

See Transactions.

Fees ​

FeePaid toAmount
Bridge feeAxelar, per actionQuoted in the modal, in XRP, from the relay's gas price. Unused gas is not refunded
Delivery to XRPLPaid by the protocolThe return leg of a borrow or a withdrawal is paid from the bridge's own reserve
XRPL transaction feeThe XRPLA few drops per transaction
Protocol feeSecurdNone on actions. The protocol retains the reserve factor on interest and the protocol seize share on liquidations

The second wallet prompt when supplying or repaying an issued token is the bridge fee of that transfer, not an additional fee.

XRPL reserves ​

ReserveAmount
Account base reserve1 XRP
Owner reserve, per trust line and other ledger object0.2 XRP

Spendable XRP is the balance minus these reserves. Opening or raising a trust line requires 0.2 XRP of spendable balance plus the transaction fee.

Trust lines ​

RuleValue
Limit set when opening a trust line1,000,000 units
Limit set when raising a trust line1,000,000 units, or twice the balance after the delivery, whichever is higher

Oracle prices ​

RuleValue
XRP and USDC pricesBand price feeds, stale after 1 hour
LP price publicationAt least every 2 minutes, or on a move of 1 % or more
LP price staleness15 minutes after the last publication
LP Prices page snapshotEvery 5 minutes

Refresh intervals ​

DataInterval
Markets (rates, totals, prices)30 seconds
XRPL balances and trust lines15 seconds
Open transaction status5 seconds while a transaction is open, 30 seconds otherwise
Market historyOne snapshot per hour

Securd is a lending protocol on XRPL EVM. Lending carries risk: read the Risks page.