> ## Documentation Index
> Fetch the complete documentation index at: https://browseruse-0aece648-larsen-v1-unified-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Billing

> Check your credit balance, plan, and estimated runway.

Read your account's credits and plan. Read-only.

<CodeGroup>
  ```python Python theme={null}
  from browser_use import BrowserUse

  client = BrowserUse()
  billing = client.project.billing()
  print(billing.credits.balance_usd, "left")
  print(billing.credits.runway_days, "days at current rate")
  ```

  ```bash curl theme={null}
  curl "https://api.browser-use.com/api/v1/project/billing" \
    -H "X-Browser-Use-API-Key: $BROWSER_USE_API_KEY"
  ```
</CodeGroup>

```json theme={null}
{
  "credits": {
    "balanceUsd": "142.50",
    "monthlyUsd": "100.00",
    "additionalUsd": "42.50",
    "runwayDays": 6.5
  },
  "plan": {
    "id": "business",
    "name": "Business",
    "status": "active",
    "periodEnd": "2026-08-01T00:00:00Z"
  }
}
```

* `monthlyUsd` — resets each billing period.
* `additionalUsd` — top-ups, never reset.
* `runwayDays` — estimated days of credit left at your recent spend rate (`null` if unknown).