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

# MessagesRequestTool - TypeScript SDK

> MessagesRequestTool type definition

<Warning>
  The TypeScript SDK and docs are currently in beta.
  Report issues on [GitHub](https://github.com/OpenRouterTeam/typescript-sdk/issues).
</Warning>

## Example Usage

```typescript lines theme={null}
import { MessagesRequestTool } from "@openrouter/sdk/models";

let value: MessagesRequestTool = {
  type: "<value>",
};
```

## Fields

| Field                  | Type                    | Required             | Description |
| ---------------------- | ----------------------- | -------------------- | ----------- |
| `type`                 | *string*                | :heavy\_check\_mark: | N/A         |
| `additionalProperties` | `Record<string, *any*>` | :heavy\_minus\_sign: | N/A         |