Morpho Blue
Operations → Lending → Morpho Blue (Composer)
Morpho Blue uses a market-based system where each market is defined by specific parameters. All operations require the full market specification.
Market Parameters
Each Morpho operation requires the complete market definition:
| Offset | Length (bytes) | Description |
|---|---|---|
| 0 | 20 | MarketParams.loanToken |
| 20 | 20 | MarketParams.collateralToken |
| 40 | 20 | MarketParams.oracle |
| 60 | 20 | MarketParams.irm (Interest Rate Model) |
| 80 | 16 | MarketParams.lltv (Liquidation Loan-To-Value) |
Deposit Collateral
Deposit collateral tokens to a Morpho Blue market.
If amount=0, we use the contract balance via collateralToken.balanceOf(address(this)). This is recommended when executing this operation after a swap.
| Offset | Length (bytes) | Description |
|---|---|---|
| 0 | 20 | MarketParams.loanToken |
| 20 | 20 | MarketParams.collateralToken |
| 40 | 20 | MarketParams.oracle |
| 60 | 20 | MarketParams.irm |
| 80 | 16 | amount uint128 |
| 96 | 20 | receiver address |
| 116 | 20 | morpho address |
Withdraw Collateral
Withdraw collateral tokens from a Morpho Blue market.
If amount=0xffffffffffffffffffffffffffff, we read the user's full collateral balance and withdraw without leaving dust.
| Offset | Length (bytes) | Description |
|---|---|---|
| 0 | 20 | MarketParams.loanToken |
| 20 | 20 | MarketParams.collateralToken |
| 40 | 20 | MarketParams.oracle |
| 60 | 20 | MarketParams.irm |
| 80 | 16 | amount uint128 |
| 96 | 20 | receiver address |
| 116 | 20 | morpho address |
Deposit Lending Token
Deposit loan tokens (lending tokens) to a Morpho Blue market. This operation supports both assets and shares.
Use the flag at offset 96 to specify whether to deposit by assets (0) or shares (1). If amount=0, we use the contract balance.
| Offset | Length (bytes) | Description |
|---|---|---|
| 0 | 20 | MarketParams.loanToken |
| 20 | 20 | MarketParams.collateralToken |
| 40 | 20 | MarketParams.oracle |
| 60 | 20 | MarketParams.irm |
| 80 | 16 | MarketParams.lltv |
| 96 | 1 | flags (0=assets, 1=shares) |
| 97 | 15 | amount uint112 |
| 112 | 20 | receiver address |
| 132 | 20 | morpho address |
| 152 | 2 | callbackLength uint16 |
| 154 | callbackLength | callbackData |
Withdraw Lending Token
Withdraw loan tokens from a Morpho Blue market. This operation supports both assets and shares.
Use the flag at offset 96 to specify whether to withdraw by assets (0) or shares (1). If amount=0xffffffffffffffffffffffffffff, we withdraw the user's full balance.
| Offset | Length (bytes) | Description |
|---|---|---|
| 0 | 20 | MarketParams.loanToken |
| 20 | 20 | MarketParams.collateralToken |
| 40 | 20 | MarketParams.oracle |
| 60 | 20 | MarketParams.irm |
| 80 | 16 | MarketParams.lltv |
| 96 | 1 | flags (0=assets, 1=shares) |
| 97 | 15 | amount uint112 |
| 112 | 20 | receiver address |
| 132 | 20 | morpho address |
Borrow
Borrow loan tokens from a Morpho Blue market. This operation supports both assets and shares.
Use the flag at offset 96 to specify whether to borrow by assets (0) or shares (1).
| Offset | Length (bytes) | Description |
|---|---|---|
| 0 | 20 | MarketParams.loanToken |
| 20 | 20 | MarketParams.collateralToken |
| 40 | 20 | MarketParams.oracle |
| 60 | 20 | MarketParams.irm |
| 80 | 16 | MarketParams.lltv |
| 96 | 1 | flags (0=assets, 1=shares) |
| 97 | 15 | amount uint112 |
| 112 | 20 | receiver address |
| 132 | 20 | morpho address |
Repay
Repay borrowed loan tokens to a Morpho Blue market. This operation supports both assets and shares.
Use the flag at offset 96 to specify whether to repay by assets (0) or shares (1).
Special amount values:
amount=0: repay contract balanceamount=0xffffffffffffffffffffffffffff: repay maximum safe amount (prevents dust)
| Offset | Length (bytes) | Description |
|---|---|---|
| 0 | 20 | MarketParams.loanToken |
| 20 | 20 | MarketParams.collateralToken |
| 40 | 20 | MarketParams.oracle |
| 60 | 20 | MarketParams.irm |
| 80 | 16 | MarketParams.lltv |
| 96 | 1 | flags (0=assets, 1=shares) |
| 97 | 15 | amount uint112 |
| 112 | 20 | receiver address |
| 132 | 20 | morpho address |
| 152 | 2 | callbackLength uint16 |
| 154 | callbackLength | callbackData |