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Sweep 03 Nov 2026 · 22:27Z Build v2.1.318 536 read Stable v2.1.311 Latest v2.1.318 Next v2.1.318 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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search-results changedbuild-with-claude/search-results

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3636 
3737**API support**: Usage differs by product.
3838 
39* **Messages API**: Always on. Send `search_result` blocks in a tool result or directly in a user message.
40* **Managed Agents**: Always on. Accepted only in tool results, such as a `user.custom_tool_result` event, not in `user.message` events.
39* **Messages API**: Send `search_result` blocks in a tool result or directly in a user message.
40* **Managed Agents**: Accepted only in tool results, such as a `user.custom_tool_result` event, not in `user.message` events.
4141 
4242Search result content blocks let Claude cite your own content the same way it cites web search results: each citation carries the source and title you provided. Use them in RAG (Retrieval-Augmented Generation) applications where Claude needs to attribute answers to your documents.
4343 
44All [active models](https://platform.claude.com/docs/en/models/overview) support search results with citations, with the exception of Claude Haiku 3. No beta header is required: search results are part of the standard Messages API.
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4644## How it works
4745 
4846Search results can be provided in two ways:
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21592157 
21602158## Limitations
21612159 
2162* Search result content blocks are available on the Claude API, Amazon Bedrock, and Claude Models on Google Cloud (Google managed).
21632160* Only text content is supported within search results (no images or other media).
21642161* `search_result` blocks can only appear in user messages (including inside tool results). Assistant messages with search results are rejected.
21652162* When the [web search tool](https://platform.claude.com/docs/en/agents-and-tools/tool-use/web-search-tool) is enabled in the same request, citations must be enabled on all `search_result` blocks.
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21962193 
21972194#### [Messages API](https://platform.claude.com/docs/en/build-with-claude/working-with-messages)
21982195 
2199* Availability: Always on
2196* Availability: Available
22002197* Usage: Send `search_result` blocks in a tool result or directly in a user message.
22012198 
22022199| Status | Cloud platforms |
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22052202 
22062203#### [Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview)
22072204 
2208* Availability: Always on
2205* Availability: Available
22092206* Usage: Accepted only in tool results, such as a `user.custom_tool_result` event, not in `user.message` events.
22102207 
22112208| Status | Cloud platforms |
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