cmek changedmanage-claude/cmek
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108108* Claude Managed Agents [vault credential](https://platform.claude.com/docs/en/managed-agents/vaults) values, such as OAuth tokens and client secrets. These are stored under Anthropic-managed encryption, are write-only, and are never returned in API responses.
109109* [User profiles](https://platform.claude.com/docs/en/api/beta/user_profiles): the `name`, `external_id`, and `metadata` fields are stored under Anthropic-managed encryption, not your key. Do not store sensitive personal data in profile `metadata`.
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111- [OpenTelemetry destination](https://platform.claude.com/docs/en/manage-claude/opentelemetry#add-a-destination) request headers, such as the API key header of your observability backend. These are stored under Anthropic-managed encryption. Their values are write-only and are never returned in API responses.
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111113**Claude Enterprise**
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113115* Beta and research preview features might not be covered by CMEK and can break in CMEK organizations, for example, Claude Security and the Claude Design app at claude.ai/design.
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