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

# Retrieve Network Gas Tanks — GET /dac/v1/gas-tanks

> Retrieve all gas tanks configured in your sub-account, including the blockchain network and current native token balance for each tank.

Gas tanks are Finrock-managed reserves of native blockchain tokens (e.g., ETH, BNB, MATIC) that automatically cover network transaction fees on behalf of your wallets. This endpoint returns all gas tanks associated with your sub-account, giving you a snapshot of each tank's blockchain network and current native token balance. Use this list to monitor fee reserves and determine when a top-up is needed before fees are exhausted.

## Request

<ParamField header="x-api-key" type="string" required>
  Your Finrock API key.
</ParamField>

<ParamField header="Authorization" type="string" required>
  Your JWT bearer token. Format: `Token {JWT}`
</ParamField>

## Example Request

```bash theme={null}
curl --request GET \
     --url https://api.finrock.io/dac/v1/gas-tanks \
     --header 'Authorization: Token {JWT}' \
     --header 'accept: application/json' \
     --header 'x-api-key: {{api_key}}'
```

## Response

A successful `200` response returns an array of gas tank objects, each describing a blockchain network and its current native balance. A `401` response indicates a missing or invalid authentication credential.

<ResponseField name="200" type="array">
  Array of gas tank objects for all networks configured in your sub-account.
</ResponseField>

<ResponseField name="401" type="object">
  Returned when the `x-api-key` or `Authorization` header is missing, expired, or invalid.
</ResponseField>

<Note>
  Keep each gas tank sufficiently funded. If a gas tank balance drops to zero, outgoing transactions on that network will fail until the tank is topped up.
</Note>