LangSmith Sandboxes
Private Beta Waitlist

LangSmith Sandboxes give you a managed, secure runtime for executing untrusted code. Add your LangSmith API key, pull in our SDK, and you're off.
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Sandboxes ship with:

  • OSS integrations: Full Python and JavaScript SDK support, and Deep Agents integration
  • Fast, flexible execution: Sub-1-second spin-up, long-running WebSocket sessions, and bring-your-own Docker images
  • Security: Sandboxes access external services through a managed authentication proxy, so credentials never touch the runtime

Now in Private Beta. Sign up for the waitlist.

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