LangSmith Sandboxes
Private Preview Waitlist

LangSmith Sandboxes gives you a secure environment for executing untrusted code. Add your LangSmith API key, pull in our SDK, and you're off.
‍
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 Preview. Sign up for the waitlist.

Trusted by the best teams building agents