> For the complete documentation index, see [llms.txt](https://docs.defisaver.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.defisaver.com/actions/morphoblue/morphobluesupplycollateral.md).

# MorphoBlueSupplyCollateral

### Description

Supply a token to Morpho Blue market as collateral

### Action ID

`0xc69d5942`

### SDK Action

```ts
const morphoBlueSupplyCollateralAction = new dfs.actions.morpho-blue.MorphoBlueSupplyCollateralAction(
    loanToken,
    collateralToken,
    oracle,
    irm,
    lltv,
    supplyAmount,
    from,
    onBehalf
);
```

### Action Type

`STANDARD_ACTION`

### Input Parameters

```solidity
    /// @param marketParams Market params of specified Morpho Blue market
    /// @param supplyAmount The amount of assets to supply.
    /// @param from The Address from which to pull tokens to be supplied as collateral
    /// @param onBehalf The address that will own the increased collateral position.
    struct Params {
        MarketParams marketParams;
        uint256 supplyAmount;
        address from;
        address onBehalf;
    }
```

### Return Value

```solidity
return bytes32(amount);
```

### Events and Logs

```solidity
emit ActionEvent("MorphoBlueSupplyCollateral", logData);
logger.logActionDirectEvent("MorphoBlueSupplyCollateral", logData);
bytes memory logData = abi.encode(params);
```