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# setMultilingual

> Configure recognizer-driven multilingual mode, where the agent answers in whatever language the caller speaks.

[ref-agentbase]: /docs/server-sdks/reference/typescript/agents/agent-base

[set-languages]: /docs/server-sdks/reference/typescript/agents/agent-base/set-languages

[swml-ai-multilingual]: /docs/swml/reference/calling/ai/multilingual

Configure recognizer-driven multilingual mode. The speech recognizer runs in
code-switching mode and the agent answers in whatever language the caller
actually spoke, rather than the model choosing a language. The config is
emitted as the `multilingual` object on the SWML `ai` verb.

> **Note**
>
> Mutually exclusive with [`setLanguages()`][set-languages]. If both are set, the
> platform uses `multilingual` and ignores `languages`.

## **Parameters**

**`config`** `Record<string, unknown>` — required

The multilingual configuration object, passed through as-is: `languages`
(required, one entry per language with a `voice`), `allowed`,
`start_language`, `min_switch_words`, and fillers. See the SWML
[`ai.multilingual`][swml-ai-multilingual] reference for every field.

---

## **Returns**

[`AgentBase`][ref-agentbase] -- Returns `this` for method chaining.

## **Example**

```typescript {5-12}
import { AgentBase } from '@signalwire/sdk';

const agent = new AgentBase({ name: 'dispatch', route: '/dispatch' });

agent.setMultilingual({
  start_language: 'en',
  allowed: ['en', 'es'],
  languages: [
    { language: 'default', voice: 'elevenlabs.rachel' },
    { language: 'es', voice: 'elevenlabs.maria' },
  ],
});
```

> Configure recognizer-driven multilingual mode, where the agent answers in whatever language the caller speaks.