> ## 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. # ServerToolInputName ## Fields | Field | Type | Required | Description | Example | | - | - | - | - | - | | `api_formats` | List\[[components.ServerToolInputNameAPIFormat](../components/servertoolinputnameapiformat.mdx)] | ✔️ | API formats that accept this spelling in `tools[].type` | | | `output_names` | List\[[components.ServerToolOutputName](../components/servertooloutputname.mdx)] | ✔️ | What the call surfaces as on each accepting API format when requested under this spelling; a format is absent when the call is not visible to the caller | | | `type` | *str* | ✔️ | N/A | web\_search\_20250305 |