memory changedmanaged-agents/memory
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## Availability ### API support #### [Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview) ### Required beta headers ### Data handling
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55featureMetadata:
66 status: beta
77 betaHeader: agent-memory-2026-07-22
8 zdr:
9 eligibility: not-eligible
10 note: Sessions are stateful resources; transcripts persist until you delete them. Applies to all Managed Agents sub-features, including Self-hosted sandboxes.
11 supportedModels:
12 - claude-fable-5-1
13 - claude-mythos-5-1
14 - claude-fable-5
15 - claude-mythos-5
16 - claude-mythos-preview
17 - claude-opus-5-5
18 - claude-opus-5
19 - claude-sonnet-5-5
20 - claude-sonnet-5
21 - claude-haiku-5-5
22 - claude-haiku-4-5-20251001
23 - claude-opus-4-8
24 - claude-opus-4-7
25 - claude-opus-4-6
26 - claude-sonnet-4-6
27 - claude-opus-4-5-20251101
28 - claude-sonnet-4-5-20250929
29 supportedPlatforms:
30 Claude API:
31 availability: beta
32 note: Sending `managed-agents-2026-04-01` together with `agent-memory-2026-07-22` on a memory store call returns a 400 error.
33 Claude Platform on AWS:
34 availability: beta
35 note: On Claude Platform on AWS, sessions on self-hosted environments can't attach memory stores. Sending `managed-agents-2026-04-01` together with `agent-memory-2026-07-22` on a memory store call returns a 400 error.
36 Claude Models on Google Cloud (Anthropic managed):
37 availability: beta
38 note: On Claude Models on Google Cloud (Anthropic managed), memory stores aren't supported for sessions on self-hosted environments. Sending `managed-agents-2026-04-01` together with `agent-memory-2026-07-22` on a memory store call returns a 400 error.
839---
940
1041Each Managed Agents session starts with a fresh context by default. When a session ends, any state the agent built up is gone. Memory stores let the agent carry information across sessions: user preferences, project conventions, prior mistakes, and domain context.
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13371368* **Attach a new store when it makes sense.** If a store has grown beyond its useful scope, attach a fresh one for new content and attach the original with `read_only` access. The agent can read from both while only writing to the new one.
13381369
13391370* **Limit write access where appropriate.** Sessions that only read shared reference material don’t need `read_write`. Keeping write access scoped to sessions that actually add new memories makes it easier to track where growth is coming from.
1371
1372## Availability
1373
1374Memory stores are in beta on every model.
1375
1376### API support
1377
1378#### [Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview)
1379
1380* Availability: Available
1381
1382| Status | Cloud platforms |
1383| ---------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
1384| Beta<sup>1</sup> | Claude API |
1385| Beta<sup>2</sup> | [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws) |
1386| Beta<sup>3</sup> | [Claude Models on Google Cloud (Anthropic managed)](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/anthropic-managed) |
1387
13881. Sending `managed-agents-2026-04-01` together with `agent-memory-2026-07-22` on a memory store call returns a 400 error.
13892. On Claude Platform on AWS, sessions on self-hosted environments can’t attach memory stores. Sending `managed-agents-2026-04-01` together with `agent-memory-2026-07-22` on a memory store call returns a 400 error.
13903. On Claude Models on Google Cloud (Anthropic managed), memory stores aren’t supported for sessions on self-hosted environments. Sending `managed-agents-2026-04-01` together with `agent-memory-2026-07-22` on a memory store call returns a 400 error.
1391
1392### Required beta headers
1393
1394[Beta headers overview](https://platform.claude.com/docs/en/api/beta-headers)
1395
1396Beta headers allow you to access experimental features and new model capabilities before they become part of the standard API.
1397
1398* `agent-memory-2026-07-22`
1399
1400### Data handling
1401
1402[Data handling overview](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#feature-eligibility)
1403
1404| Item | Zero data retention | HIPAA |
1405| ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- |
1406| Status | Not eligible | Not eligible |
1407| Details | Sessions are stateful resources; transcripts persist until you delete them. Applies to all Managed Agents sub-features, including Self-hosted sandboxes. | Applies to all Managed Agents sub-features, including Self-hosted sandboxes. |
1408
1409Applicable endpoints:
1410
1411* `/v1/agents`
1412* `/v1/sessions`
1413* `/v1/environments`
13401414
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