webhooks changedmanaged-agents/webhooks
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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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88 url: https://platform.claude.com/docs/en/managed-agents/overview
99 status: beta
1010 betaHeader: managed-agents-2026-04-01
11 zdr:
12 eligibility: not-eligible
13 note: Sessions are stateful resources; transcripts persist until you delete them. Applies to all Managed Agents sub-features, including Self-hosted sandboxes.
14 supportedModels:
15 - claude-fable-5-1
16 - claude-mythos-5-1
17 - claude-fable-5
18 - claude-mythos-5
19 - claude-mythos-preview
20 - claude-opus-5-5
21 - claude-opus-5
22 - claude-sonnet-5-5
23 - claude-sonnet-5
24 - claude-haiku-5-5
25 - claude-haiku-4-5-20251001
26 - claude-opus-4-8
27 - claude-opus-4-7
28 - claude-opus-4-6
29 - claude-sonnet-4-6
30 - claude-opus-4-5-20251101
31 - claude-sonnet-4-5-20250929
32 supportedPlatforms:
33 Claude API: beta
34 Claude Platform on AWS: beta
1135---
1236
1337Sessions are long-running interactions. Although most real-time interactions occur through the [SSE event stream](https://platform.claude.com/docs/en/managed-agents/events-and-streaming), webhooks notify you of major state changes.
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440464 * Deliveries to the endpoint fail continuously for a sustained period, with the reason `auto-disabled after sustained delivery failures`. The trigger is how long the endpoint has been failing without interruption, not a delivery count. A single `2xx` resets the window, so one event that fails intermittently can’t disable the endpoint.
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442466 All three are reversible: re-enable the endpoint in Console after you resolve the issue. Events emitted while the endpoint was disabled aren’t replayed.
467
468## Availability
469
470Webhooks are in beta on every model.
471
472### API support
473
474#### [Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview)
475
476* Availability: Available
477
478| Status | Cloud platforms |
479| ------ | ------------------------------------------------------------------------------------------------------------------ |
480| Beta | Claude API, [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws) |
481
482### Required beta headers
483
484[Beta headers overview](https://platform.claude.com/docs/en/api/beta-headers)
485
486Beta headers allow you to access experimental features and new model capabilities before they become part of the standard API.
487
488* `managed-agents-2026-04-01`
489
490### Data handling
491
492[Data handling overview](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#feature-eligibility)
493
494| Item | Zero data retention | HIPAA |
495| ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- |
496| Status | Not eligible | Not eligible |
497| 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. |
498
499Applicable endpoints:
500
501* `/v1/agents`
502* `/v1/sessions`
503* `/v1/environments`
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