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

# SendCallsCapabilities

```ts theme={null}
type SendCallsCapabilities = {
[key: string]: unknown;
  paymasterService?: {
     url?: string;
  };
  dataSuffix?: {
     value: Hex;
  };
};
```

Capabilities for wallet\_sendCalls

## Indexable

```ts theme={null}
[key: string]: unknown
```

## Properties

| Property | Type |
| - | - |
| <a id="paymasterservice" /> `paymasterService?` | \{ `url?`: `string`; } |
| `paymasterService.url?` | `string` |
| <a id="datasuffix" /> `dataSuffix?` | \{ `value`: [`Hex`](/sdks/cdp-sdks-v2/frontend/@coinbase/cdp-core/Type-Aliases/Hex); } |
| `dataSuffix.value` | [`Hex`](/sdks/cdp-sdks-v2/frontend/@coinbase/cdp-core/Type-Aliases/Hex) |