memory-tool changedagents-and-tools/tool-use/memory-tool
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14 Aug 2026
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33url: https://platform.claude.com/docs/en/agents-and-tools/tool-use/memory-tool
44description: Let Claude store and retrieve information across conversations by implementing the memory tool's file operations in your application.
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). Client-side memory storage where you control data retention.
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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
32 Amazon Bedrock: ga
33 Amazon Bedrock (InvokeModel): ga
34 Claude Models on Google Cloud (Google managed): ga
35 Microsoft Foundry: ga
29 Claude API: stable
30 Claude Platform on AWS: stable
31 Claude Models on Google Cloud (Anthropic managed): stable
32 Amazon Bedrock: stable
33 Amazon Bedrock (InvokeModel): stable
34 Claude Models on Google Cloud (Google managed): stable
35 Microsoft Foundry: stable
3636---
3737
3838The memory tool lets Claude store and retrieve information across conversations in a directory of memory files. Claude can create, read, update, and delete files that persist between sessions, building up knowledge over time without keeping everything in the context window.
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