> ## 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.

# MessagesRequestToolUnion

## Supported Types

### `components.ToolCustom`

```python theme={null}
value: components.ToolCustom = /* values here */
```

### `components.ToolBash20250124`

```python theme={null}
value: components.ToolBash20250124 = /* values here */
```

### `components.ToolTextEditor20250124`

```python theme={null}
value: components.ToolTextEditor20250124 = /* values here */
```

### `components.ToolWebSearch20250305`

```python theme={null}
value: components.ToolWebSearch20250305 = /* values here */
```

### `components.ToolWebSearch20260209`

```python theme={null}
value: components.ToolWebSearch20260209 = /* values here */
```

### `components.ToolAdvisor20260301`

```python theme={null}
value: components.ToolAdvisor20260301 = /* values here */
```

### `components.BashServerTool`

```python theme={null}
value: components.BashServerTool = /* values here */
```

### `components.DatetimeServerTool`

```python theme={null}
value: components.DatetimeServerTool = /* values here */
```

### `components.ImageGenerationServerToolOpenRouter`

```python theme={null}
value: components.ImageGenerationServerToolOpenRouter = /* values here */
```

### `components.MessagesSearchModelsServerTool`

```python theme={null}
value: components.MessagesSearchModelsServerTool = /* values here */
```

### `components.WebFetchServerTool`

```python theme={null}
value: components.WebFetchServerTool = /* values here */
```

### `components.OpenRouterWebSearchServerTool`

```python theme={null}
value: components.OpenRouterWebSearchServerTool = /* values here */
```

### `components.MessagesRequestTool`

```python theme={null}
value: components.MessagesRequestTool = /* values here */
```

### `components.AnthropicToolSearchToolBm25`

```python theme={null}
value: components.AnthropicToolSearchToolBm25 = /* values here */
```

### `components.AnthropicToolSearchToolRegex`

```python theme={null}
value: components.AnthropicToolSearchToolRegex = /* values here */
```