## Compatibility
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44description: Pre-installed packages, databases, and utilities available in cloud sandboxes.
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7## Compatibility
8- Status: Beta
9- [Beta header](https://platform.claude.com/docs/en/api/beta-headers): `managed-agents-2026-04-01`
10
711Cloud sandboxes run as isolated Linux containers on Anthropic-managed infrastructure. They come pre-installed with a comprehensive set of programming languages, databases, and utilities. The agent can use these immediately without any installation steps.
812
913These specifications apply to `cloud` environments. Self-hosted sandboxes run on your infrastructure with whatever your worker provides.
10
11<Note>
12 Managed Agents API requests require the `managed-agents-2026-04-01` beta header, except memory store endpoints, which use `agent-memory-2026-07-22` instead. The SDK sets the correct beta header automatically. See [Beta headers](https://platform.claude.com/docs/en/api/beta-headers#endpoint-specific-headers).
13</Note>
1414
1515## Programming languages
1616