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

# List Voices

> Use the list_voices MCP tool on the DialNexa remote MCP server.

<span data-api-safety-label="read-only"><Badge color="gray" size="sm" shape="pill">Read only</Badge></span>

Returns available TTS voices for configuring an agent. Supports three modes via the mode param: standard catalog (filterable by provider/accent/gender/name), just the distinct accent values, or speech-to-speech-capable voices only.

## Parameters

| Name       | Type     | Required | Description                                                                                                                                         |
| ---------- | -------- | -------- | --------------------------------------------------------------------------------------------------------------------------------------------------- |
| `mode`     | `string` | No       | One of: 'standard' (default, filterable catalog), 'accents' (just the list of distinct accent values), 's2s' (speech-to-speech capable voices only) |
| `provider` | `string` | No       | Filter by TTS provider. One of: elevenlabs, smallestai, sarvam, cartesia                                                                            |
| `accent`   | `string` | No       | Filter by accent, e.g. indian, american, british                                                                                                    |
| `gender`   | `string` | No       | Filter by gender: male, female, or non-binary                                                                                                       |
| `name`     | `string` | No       | Search by voice name                                                                                                                                |
| `page`     | `string` | No       | Page number, default 1 (ignored for accents/s2s modes)                                                                                              |
| `limit`    | `string` | No       | Results per page, default 10, max 50 (ignored for accents/s2s modes)                                                                                |

## Before you call

* Connect and initialize the MCP client with OAuth or an API key for the intended workspace.
* This tool has no required arguments.

## Example MCP request

Send `tools/call` after your client completes MCP initialization. Replace placeholder values with IDs and inputs from your workspace. For object and array parameters, follow the nested requirements in the parameter description instead of treating an empty value as complete.

```json theme={null}
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list_voices",
    "arguments": {}
  }
}
```

The server returns one text content block. Parse `content[0].text` as JSON when the tool succeeds. See [MCP responses and errors](/docs/mcp-tools/errors) for the full envelope and failure behavior.

## Verify the result

Confirm the response is not marked `isError`, parse `content[0].text` as JSON, and verify that returned IDs and workspace data match the request.

## Retry safety

This tool does not change workspace data. Retrying after a transient transport failure is safe.

## Related guides

* [Connect to the DialNexa MCP server](/docs/mcp-tools/overview)
* [Reference Data MCP tools](/docs/mcp-tools/reference-data/overview)
* [MCP responses and errors](/docs/mcp-tools/errors)