> ## 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.

# ServerToolExecutedBy

Who runs the tool call: the model provider during inference (`provider`), OpenRouter (`openrouter`), or the caller's application after the call is returned (`client`).

## Example Usage

```go theme={null}
import (
	"github.com/OpenRouterTeam/go-sdk/models/components"
)

value := components.ServerToolExecutedByProvider

// Open enum: custom values can be created with a direct type cast
custom := components.ServerToolExecutedBy("custom_value")
```

## Values

| Name | Value |
| - | - |
| `ServerToolExecutedByProvider` | provider |
| `ServerToolExecutedByOpenrouter` | openrouter |
| `ServerToolExecutedByClient` | client |