> ## Documentation Index
> Fetch the complete documentation index at: https://hypernode-docs.polynode.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Builder Fee Approval

> Check the maximum builder fee a user has approved for a specific builder

## Endpoint

```
GET /v2/user/max-builder-fee?address={wallet}&builder={builder_address}
```

| Param     | Required | Description            |
| --------- | -------- | ---------------------- |
| `address` | Yes      | User wallet address    |
| `builder` | Yes      | Builder wallet address |

Both parameters are required. Omitting the builder address returns an error.

## Response

```json theme={null}
0
```

Returns an integer representing the approved fee in **tenths of a basis point**. A value of `10` means 1 bps. `0` means no approval has been set for this user/builder pair.

Maximum is 80 (8 bps). Users must approve builder fees via the `ApproveBuilderFee` action, signed by the main wallet (not an agent).

## Example

```bash theme={null}
# Check if user approved any fee for the XYZ DEX deployer
curl -H "x-api-key: YOUR_KEY" \
  "https://hyper.polynode.dev/v2/user/max-builder-fee?address=0xUSER...&builder=0x88806a71d74ad0a510b350545c9ae490912f0888"
```