# Listing Approvals

Butler offers the option to pre-approve Collections for Listing per Marketplace. Approvals can also be done later on once a bid got accepted and Assets are part of your inventory before creating the Listing task.

{% hint style="info" %}
Approvals can be done on the Ethereum blockchain. Base is currently not supported. For **Base** approvals Users need to manually list the asset on OpenSea first in order to make Auto Listing tasks work.
{% endhint %}

<figure><img src="/files/KO71Ac9Qdt9fqEVTG0PZ" alt=""><figcaption><p>Pre-Approving Collection on OpenSea</p></figcaption></figure>

{% hint style="info" %}
The Selected Wallet is taken from the Bidding Task config or the wallet which is currently holding selected asset on a [Listing Task](/nft-butler/task-types/listing-task.md)
{% endhint %}

## Approvals

The Approval modal is showing Estimated gas fees based on current gas price and estimated gas limits for the required approval.

With **Refresh Estimates** gas fees can be refreshed. There is also a hardcoded limit to skip listing approvals above 50 Gwei gas price.

When hitting **Approve** Butler will automatically sign and send the approval request for the selected Marketplace with the selected wallet.

<figure><img src="/files/v7yQDNmFXddVzPqy97B9" alt=""><figcaption><p>Sending Approval Request on MagicEden</p></figcaption></figure>

{% hint style="info" %}
Sending an Approval Request can take a few seconds up to several minutes. Once the Approval has been completed a message as below will be shown.

With the Button "**Check Pending Transactions**" you'll be linked to the Etherscan Mempool to see your pending approval request.
{% endhint %}

<figure><img src="/files/x3OOdNUmZ0DMqqDTdgQe" alt=""><figcaption><p>Approval was sent successful</p></figcaption></figure>

After successful approval Butler will also rescan the approvals of your wallet to confirm and update Approved Marketplaces:

<figure><img src="/files/f9DJlGoys6pluoWajbe3" alt=""><figcaption><p>Magic Eden was successfully approved on this wallet</p></figcaption></figure>


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