> ## Documentation Index
> Fetch the complete documentation index at: https://developers.fireblocks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Enable Auto Fueling

# Enabling auto-fueling via the API

For new vault accounts, call the [Create a new vault account endpoint](/reference/createvaultaccount) and set the **autoFuel** field to **true**.

For existing vault accounts:

1. Call the [Get vault accounts (paginated) endpoint](/reference/getpagedvaultaccounts) to find the vault account's ID.
2. Call the [Set auto-fueling on or off endpoint](/reference/setvaultaccountautofuel), enter the vault account's ID in the **vaultAccountId** field, and then set the **autoFuel** field to **true**.