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

# ExternalWalletSignerConfigForChain

<Note>
  **This page has been updated for Wallets SDK V1.** If you are using the previous version,
  see the [previous version of this page](/sdk-reference/wallets/v0/typescript/type-aliases/ExternalWalletSignerConfigForChain) or the [V1 migration guide](/wallets/guides/migrate-to-v1).
</Note>

> **ExternalWalletSignerConfigForChain**\<`C`> = `C` *extends* [`SolanaChain`](./SolanaChain) ? [`SolanaExternalWalletSignerConfig`](./SolanaExternalWalletSignerConfig) : `C` *extends* [`StellarChain`](./StellarChain) ? [`StellarExternalWalletSignerConfig`](./StellarExternalWalletSignerConfig) : [`EvmExternalWalletSignerConfig`](./EvmExternalWalletSignerConfig)

Defined in: [packages/wallets/src/signers/types.ts:54](https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/src/signers/types.ts#L54)

## Type Parameters

| Type Parameter                   |
| -------------------------------- |
| `C` *extends* [`Chain`](./Chain) |