web-search-tool changedagents-and-tools/tool-use/web-search-tool
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14 Aug 2026
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33url: https://platform.claude.com/docs/en/agents-and-tools/tool-use/web-search-tool
44description: Give Claude access to current web content with cited sources, optional dynamic filtering, and domain controls.
55featureMetadata:
6 status: ga
6 status: stable
77 zdr:
88 eligibility: eligible
99 note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-retention-requirements). Real-time web search results returned in the API response. Dynamic filtering for web search is not eligible for ZDR or HIPAA.
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2626 - claude-opus-4-5-20251101
2727 - claude-sonnet-4-5-20250929
2828 supportedPlatforms:
29 Claude API: ga
30 Claude Platform on AWS: ga
31 Claude Models on Google Cloud (Anthropic managed): ga
29 Claude API: stable
30 Claude Platform on AWS: stable
31 Claude Models on Google Cloud (Anthropic managed): stable
3232 Claude Models on Google Cloud (Google managed):
33 availability: ga
33 availability: stable
3434 note: Only the basic web search tool (`web_search_20250305`), without dynamic filtering.
3535 Microsoft Foundry:
36 availability: ga
36 availability: stable
3737 note: Only the basic web search tool (`web_search_20250305`), without dynamic filtering.
3838---
3939
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