> ## 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.

# NativeTools

## Fields

| Field | Type | Required | Description |
| - | - | - | - |
| `Type` | `string` | :heavy\_check\_mark: | The provider tool type the request is translated to when this tool runs natively, e.g. `web_search_20260209` on Anthropic or `google_search` on Gemini. |