> For the complete documentation index, see [llms.txt](https://docs.parallel.best/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallel.best/developers-hub/parallel-v2/classic-vaults/opening-a-vault.md).

# Opening a vault

*As of July 2021, the Parallel Protocol Vaults supports the following collateral assets: WETH, WBTC, and USDC.*

To create a vault and deposit WETH collateral equal to `DEPOSIT_AMOUNT` to it, follow these steps:

* Approve the collateral ERC20 asset (WETH) to the [**VaultsCore** address](https://app.gitbook.com/@mimo-defi/s/mimo-defi/~/drafts/-MewpTJxUIffxdZakurk/developers/contract-addresses) equal to at least the `DEPOSIT_AMOUNT`. 

```
WETH.approve(VaultsCore address, DEPOSIT_AMOUNT)
```

* Call the `VaultsCore.deposit()` function with the desired collateral address and deposit amount.

```
VaultsCore.deposit(WETH address, DEPOSIT_AMOUNT)
```

* You can view your vault details from the `VaultsCore.vaults()`view function.

```
myVaultId = VaultsDataProvider.vaultId(WETH address, your address);
myVault = VaultsDataProvider.vaults(vaultId)
```

* Each Vault has the following information:

```
struct Vault {
    address collateralType;
    address owner;
    uint256 collateralBalance;
    uint256 baseDebt;
    uint256 createdAt;
  }
```


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