Reserve Config Reference

This is the canonical reference for ReserveConfig — the on-chain struct that defines every parameter of a Kamino reserve. Field names below match the JSON used by the kamino-manager CLI (camelCase). The on-chain Rust struct uses snake_case; the SDK handles the conversion. For guidance on choosing values, see Risk parameters, Configure oracles, and the topic-specific guides linked from each section below.

Reserve status

Field	Type	Description
`status`	u8 enum	`0` Active (normal operation), `1` Obsolete (existing positions continue; signals not for new activity), `2` Hidden (hidden from default UIs)

Risk parameters

Field	Type	Description
`loanToValuePct`	u8 (0–100)	Maximum borrowing capacity against this asset as collateral, in percent of USD value
`liquidationThresholdPct`	u8 (0–100)	LTV at which a position becomes liquidatable. Must be ≥ `loanToValuePct`
`borrowFactorPct`	u64 (≥100)	Risk multiplier on debt-side valuation. `100` = no adjustment; higher values shrink effective borrow capacity
`disableUsageAsCollOutsideEmode`	u8 (bool)	If `1`, this asset can be used as collateral only inside elevation groups
`utilizationLimitBlockBorrowingAbovePct`	u8 (0–100)	Block new borrows when utilization is above this percent. `0` disables

Capacity limits

Field	Type	Description
`depositLimit`	u64 (token base units)	Maximum total deposits accepted. `0` = no limit
`borrowLimit`	u64 (token base units)	Maximum total borrows. `0` = no borrows allowed
`borrowLimitOutsideElevationGroup`	u64	Borrow cap against this asset as collateral when borrower is outside any eMode group. `u64::MAX` = no cap
`borrowLimitAgainstThisCollateralInElevationGroup`	array of 32 u64	Per-group borrow cap against this asset as collateral. Index = `group_id - 1`

Withdrawal caps

Each cap is a WithdrawalCaps struct with these fields:

Field	Type	Description
`configCapacity`	i64 (token base units)	Maximum net flow per interval. `0` disables the cap
`currentTotal`	i64	Net flow within the current interval (program-managed)
`lastIntervalStartTimestamp`	u64	Unix timestamp when the current interval started (program-managed)
`configIntervalLengthSeconds`	u64	Interval length in seconds. Common: `86400` (1 day)

Two caps per reserve:

Field	Throttles
`depositWithdrawalCap`	Net deposit / withdrawal flow on the collateral side
`debtWithdrawalCap`	Net borrow / repay flow on the debt side

Liquidation parameters

Field	Type	Description
`minLiquidationBonusBps`	u16 (0–10000)	Minimum bonus paid to liquidators
`maxLiquidationBonusBps`	u16 (0–10000)	Maximum bonus paid to liquidators
`badDebtLiquidationBonusBps`	u16 (0–10000)	Bonus when liquidating bad-debt positions (debt > collateral)
`protocolLiquidationFeePct`	u8 (0–100)	Protocol’s cut of liquidation proceeds

Auto-deleverage

Field	Type	Description
`autodeleverageEnabled`	u8 (bool)	Per-reserve enablement (market-level flag must also be `1`)
`deleveragingMarginCallPeriodSecs`	u64	Per-reserve override for the margin-call grace period. `0` falls back to the market default
`deleveragingThresholdDecreaseBpsPerDay`	u64	Effective liquidation threshold drops by this many bps per day after margin call
`deleveragingBonusIncreaseBpsPerDay`	u64	Liquidator bonus rises by this many bps per day after margin call
`minDeleveragingBonusBps`	u16	Floor on the deleverage-specific bonus

Interest rate curve

"borrowRateCurve": {
  "points": [
    { "utilizationRateBps": 0, "borrowRateBps": 0 },
    // up to 11 points
  ]
}

Field	Type	Description
`borrowRateCurve.points`	array (exactly 11 entries)	Piecewise linear curve. Each entry: `{ utilizationRateBps, borrowRateBps }`. The curve must be non-decreasing in both fields.
`utilizationRateBps`	u16 (0–10000)	Utilization at this breakpoint, in basis points
`borrowRateBps`	u32	Borrow rate at this utilization, in basis points

The first point should be (0, 0) or (0, 1). The last point should be (10000, max_rate). Pad unused slots by repeating the final point.

Fees

Field	Type	Description
`fees.borrowFee`	string (decimal)	Origination fee charged on each borrow. `"0.001"` = 0.1%
`fees.flashLoanFee`	string (decimal)	Flash loan fee. `"0.001"` = 0.1%
`protocolTakeRatePct`	u8 (0–100)	Percent of accrued interest routed to protocol fees (depositors receive the remainder)
`protocolOrderExecutionFeePct`	u8 (0–100)	Percent of obligation order execution proceeds routed to protocol fees

Token info / oracle config

"tokenInfo": {
  "name": "USDC",
  "heuristic": { "lower": 0, "upper": 0, "exp": 0 },
  "maxAgePriceSeconds": 120,
  "maxAgeTwapSeconds": 240,
  "maxTwapDivergenceBps": 4050,
  "scopeConfiguration": { /* ... */ },
  "blockPriceUsage": 0
}

Field	Type	Description
`name`	UTF-8 string (≤32 bytes)	Token symbol. Surfaced in tooling
`heuristic.lower`	u64	Sanity bound: minimum acceptable price = `lower * 10^exp`. `0` disables
`heuristic.upper`	u64	Sanity bound: maximum acceptable price
`heuristic.exp`	u64	Decimal exponent for the heuristic bounds
`maxAgePriceSeconds`	u64	Reject prices older than this many seconds
`maxAgeTwapSeconds`	u64	Reject TWAPs older than this many seconds. Required if TWAP is enabled
`maxTwapDivergenceBps`	u64 (0–10000)	Reject prices that deviate from TWAP by more than this. `0` disables the TWAP guard
`blockPriceUsage`	u8 (bool)	If `1`, every operation needing this reserve’s price is rejected. Emergency switch

Scope configuration

"scopeConfiguration": {
  "priceFeed": "<SCOPE_ORACLE_PRICES_PUBKEY>",
  "priceChain": [0, 65535, 65535, 65535],
  "twapChain": [52, 65535, 65535, 65535]
}

Field	Type	Description
`priceFeed`	Pubkey	Scope `OraclePrices` account
`priceChain`	u16 array (length 4)	Indices into the Scope feed forming the price chain. `65535` is the unused-slot sentinel
`twapChain`	u16 array (length 4)	TWAP indices for the same chain

Fixed-Rate Parameters

Fixed-rate reserves use the same primitives as floating reserves plus four config fields that pin the rate and impose a term. See Fixed Rates for the full configuration workflow.

Parameter	Type	Description
`hostFixedInterestRateBps`	Basis points (u16)	Optional protocol-side spread layered on top of `borrowRateCurve`. Charged to the borrower and accruing 100% to the protocol. Default `0`.
`debtTermSeconds`	u64 (seconds)	Per-borrow term. Each borrow matures at `last_borrowed_at_timestamp + debtTermSeconds`. `0` = open-term (the reserve behaves as floating). Cannot be shortened on a reserve with active borrows.
`debtMaturityTimestamp`	u64 (Unix seconds)	Reserve-wide sunset. After this, no new borrows are accepted and existing borrows become liquidatable (gated by market flag). `0` = no sunset. Must not be set in the past.
`earlyRepayRemainingInterestPct`	Integer (0–100)	Penalty for repaying inside the first term. Penalty = projected interest for the remaining term × this percentage. Accrues to protocol fees on the debt reserve.

For a fixed-rate reserve, configure borrowRateCurve as a flat curve at the target rate (both endpoints set to the same borrowRateBps) and leave hostFixedInterestRateBps at 0 unless an intentional protocol spread is required.

Elevation groups

Field	Type	Description
`elevationGroups`	u8 array (length 20)	List of elevation group IDs this reserve participates in. `0` slots are unused

See Elevation groups.

Fixed-term

Field	Type	Description
`debtTermSeconds`	u64	Duration of fixed-term borrows on this reserve. `0` = open-term (default)
`debtMaturityTimestamp`	u64	Absolute Unix timestamp when all debt on this reserve matures (cohort mode). `0` = per-borrow rolling term
`hostFixedInterestRateBps`	u16	Fixed-rate component (bps) added on top of the IR curve rate
`earlyRepayRemainingInterestPct`	u8 (0–100)	Percent of remaining interest owed on early repay

See Fixed rate reserves.

Emergency

Field	Type	Description
`emergencyMode`	u8 (bool)	Per-reserve emergency mode. `1` halts operations on this reserve
`proposerAuthorityLocked`	u8 (bool)	If `1`, blocks the proposer authority from updating this reserve config
`blockCtokenUsage`	u8 (bool)	If `1`, blocks using this reserve’s cTokens as collateral

See Emergency controls.

Fields to ignore

The following appear in some example JSON files but are not part of the current ReserveConfig struct. Treat them as no-ops; the program ignores them on update:

Stale field	Status
`assetTier`	Deprecated. Replaced by elevation groups.
`multiplierSideBoost`	Removed.
`multiplierTagBoost`	Removed.

If you encounter these in older configs, you can leave them in place (the on-chain struct ignores unrecognized fields during update) or strip them for clarity.

Reading the live config

yarn kamino-manager download-reserve-config \
  --reserve <RESERVE_ADDRESS>

Saves the canonical, on-chain config to a JSON file. Use this as the source of truth before editing.

Reference

Risk parameters — choosing LTV, threshold, IR curve, caps
Configure oracles — TWAP and staleness setup
Elevation groups — eMode setup
Fixed rate reserves — fixed-rate, fixed-term lending
Liquidations — liquidation tunables
Auto-deleverage — margin-call grace window (advanced, rarely used)
Withdrawal caps — per-interval rate limits
Updating reserves — the update workflow

​Reserve status

​Risk parameters

​Capacity limits

​Withdrawal caps

​Liquidation parameters

​Auto-deleverage

​Interest rate curve

​Fees

​Token info / oracle config

​Scope configuration

​Fixed-Rate Parameters

​Elevation groups

​Fixed-term

​Emergency

​Fields to ignore

​Reading the live config

​Reference