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# setGlobalData

> Merge key-value pairs into the global data object available to the AI throughout a conversation.

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

Merge key-value pairs into the `global_data` object available to the AI
throughout the conversation. Matches Python's `set_global_data`, which calls
`.update()` on the internal dict — existing keys are preserved; incoming keys
overwrite on collision. Skills and other callers can each contribute keys
without clobbering one another.

> **Note**
>
> Despite the `set` prefix, this method **merges** rather than replaces. There is
> no built-in "clear" method; construct a new agent if you need an empty
> `global_data` object.

## **Parameters**

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

Object of key/value pairs. Values can be any JSON-serializable type.

---

## **Returns**

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

## **Example**

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

const agent = new AgentBase({ name: 'support', route: '/support' });
agent.setPromptText('You are a helpful assistant.');
agent.setGlobalData({
  company_name: 'Acme Corp',
  support_hours: '9am-5pm EST',
  user_tier: 'standard',
});
await agent.serve();
```

> Merge key-value pairs into the global data object available to the AI throughout a conversation.