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

# createProlinkUrl

> Create a link with a prolink query parameter

Defined in the [Base Account SDK](https://github.com/base/account-sdk)

<Info>
  This utility creates a link with a prolink query parameter. Supports standard, deeplink, and universal link formats.
</Info>

## Import

```typescript theme={null}
import { createProlinkUrl } from '@base-org/account';
```

## Parameters

<ParamField body="prolink" type="string" required>
  The base64url-encoded prolink payload to create a link for.
</ParamField>

<ParamField body="url" type="string" required>
  The URL to which the prolink will be appended as a query parameter. Defaults to `https://base.app/base-pay`.
</ParamField>

<ParamField body="additionalQueryParams" type="Record<string, string>">
  Optional additional query parameters to append to the URL.
</ParamField>

## Returns

<ResponseField name="url" type="string">
  The complete URL with the prolink and any additional query parameters appended.
</ResponseField>

## Examples

### Encode wallet\_sendCalls (ERC20 Transfer)

```typescript theme={null}
import { createProlinkUrl } from '@base-org/account';

// Create a prolink for a USDC transfer on Base
const prolink = await encodeProlink({
  method: 'wallet_sendCalls',
  params: [{
    version: '1.0',
    chainId: '0x2105', // Base mainnet (8453)
    calls: [{
      to: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913', // USDC on Base
      data: '0xa9059cbb000000000000000000000000fe21034794a5a574b94fe4fdfd16e005f1c96e5100000000000000000000000000000000000000000000000000000000004c4b40',
      value: '0x0'
    }]
  }]
});

// Use in a shareable URL
const paymentUrl = createProlinkUrl(prolink, 'https://yourapp.com/pay');
console.log(paymentUrl);
```

## Related

<CardGroup cols={2}>
  <Card title="encodeProlink" icon="compress" href="/base-account/reference/prolink-utilities/encodeProlink">
    Create prolink payloads from JSON-RPC requests
  </Card>

  <Card title="decodeProlink" icon="expand" href="/base-account/reference/prolink-utilities/decodeProlink">
    Decode a prolink payload back to a JSON-RPC request
  </Card>
</CardGroup>