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

# URL parameters

> Query parameters the Ramp Checkout accepts.

| Parameter | Values | Default | Effect |
| - | - | - | - |
| `tab` | `onramp`, `offramp` | `onramp` | Opens the page on the buy or sell side. |

Example:

```text theme={"system"}
https://ramp.onstacks.io/?tab=offramp
```

<Note>
  Prefilled amount, token, currency, wallet address, and a return URL are planned. They will be added to this table when they ship; unknown parameters are ignored today.
</Note>


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