> For the complete documentation index, see [llms.txt](/llms.txt).

# Launch Wallet Services

The `launchWalletServices` method launches a WebView which allows you to use the templated wallet UI services. The method takes `ChainConfig` as the required input. Wallet Services is currently only available for EVM chains.

note

Access to Wallet Services is gated. You can use this feature in `sapphire_devnet` for free. The minimum [pricing plan](https://web3auth.io/pricing.html) to use this feature in a production environment is the **Scale Plan**.

## Parameters[​](#parameters "Direct link to Parameters")

`ChainConfig`

- Table
- Class

| Parameter         | Description                                                                                                               |
| ----------------- | ------------------------------------------------------------------------------------------------------------------------- |
| chainNamespace    | Custom configuration for your preferred blockchain. As of now only EVM supported. Default value is ChainNamespace.eip155. |
| decimals?         | Number of decimals for the currency ticker. Default value is 18, and accepts int as value.                                |
| blockExplorerUrl? | Blockchain's explorer URL. (for example, https://etherscan.io)                                                            |
| chainId           | The chain ID of the selected blockchain in hex String.                                                                    |
| displayName?      | Display Name for the chain.                                                                                               |
| logo?             | Logo for the selected chainNamespace and chainId.                                                                         |
| rpcTarget         | RPC Target URL for the selected chainNamespace & chainId.                                                                 |
| ticker?           | Default currency ticker of the network (for example, ETH)                                                                 |
| tickerName?       | Name for currency ticker (for example, Ethereum)                                                                          |

```
using System.Collections.Generic;
#nullable enable
public class ChainConfig {
    public Web3Auth.ChainNamespace? chainNamespace { get; set; } = Web3Auth.ChainNamespace.EIP155;
    public int decimals { get; set; } = 18;
    public string blockExplorerUrl { get; set; } = null;
    public string chainId { get; set; }
    public string displayName { get; set; } = null;
    public string logo { get; set; } = null;
    public string rpcTarget { get; set; }
    public string ticker { get; set; } = null;
    public string tickerName { get; set; } = null;
}

```

## Usage[​](#usage "Direct link to Usage")

```
{
    var chainConfig = new ChainConfig()
    {
        chainId = "0x1",
        rpcTarget = rpcURL,
        ticker = "ETH",
        chainNamespace = Web3Auth.ChainNamespace.EIP155
    };
    web3Auth.launchWalletServices(chainConfig);
}

```