> ## Documentation Index > Fetch the complete documentation index at: https://openrouter-d02e98a0-mintlify-7021d5f4.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # LegacyWebSearchServerTool - Python SDK > LegacyWebSearchServerTool method reference The Python SDK and docs are currently in beta. Report issues on [GitHub](https://github.com/OpenRouterTeam/python-sdk/issues). Web search tool configuration ## Fields | Field | Type | Required | Description | Example | | --------------------- | ---------------------------------------------------------------------------------------------------------------------- | -------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- | | `engine` | [Optional\[components.WebSearchEngineEnum\]](../components/websearchengineenum.md) | :heavy\_minus\_sign: | Which search engine to use. "auto" (default) uses native if the provider supports it, otherwise Exa. "native" forces the provider's built-in search. "exa" forces the Exa search API. "firecrawl" uses Firecrawl (requires BYOK). "parallel" uses the Parallel search API. | auto | | `filters` | [OptionalNullable\[components.WebSearchDomainFilter\]](../components/websearchdomainfilter.md) | :heavy\_minus\_sign: | N/A | `{"allowed_domains": ["example.com"],"excluded_domains": ["spam.com"]}` | | `max_results` | *Optional\[int]* | :heavy\_minus\_sign: | Maximum number of search results to return per search call. Defaults to 5. Applies to Exa, Firecrawl, and Parallel engines; ignored with native provider search. | 5 | | `search_context_size` | [Optional\[components.SearchContextSizeEnum\]](../components/searchcontextsizeenum.md) | :heavy\_minus\_sign: | Size of the search context for web search tools | medium | | `type` | [components.LegacyWebSearchServerToolType](/client-sdks/python/api-reference/components/legacywebsearchservertooltype) | :heavy\_check\_mark: | N/A | | | `user_location` | [OptionalNullable\[components.WebSearchUserLocation\]](../components/websearchuserlocation.md) | :heavy\_minus\_sign: | User location information for web search | `{"city": "San Francisco","country": "USA","region": "California","timezone": "America/Los_Angeles","type": "approximate"}` |