> ## 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. # ServerToolOutputName ## Example Usage ```typescript theme={null} import { ServerToolOutputName } from "@openrouter/sdk/models"; let value: ServerToolOutputName = { apiFormat: "chat-completions", type: "web_search_call", }; ``` ## Fields | Field | Type | Required | Description | Example | | - | - | - | - | - | | `apiFormat` | [models.ServerToolOutputNameApiFormat](../models/servertooloutputnameapiformat.mdx) | ✔️ | N/A | | | `name` | *string* | ➖ | Anthropic Messages `server_tool_use` block `name`, when the call surfaces as one | web\_search | | `type` | *string* | ✔️ | Output item `type` on Responses, content block `type` on Anthropic Messages, `reasoning_details[].type` on Chat Completions | web\_search\_call |