Sandboxes overview

Use managed sandboxes to safely execute code and interact with the filesystem in isolated environments.

Sandboxes are isolated environments that allow agents to safely execute potentially risky operations—like running arbitrary code or interacting with the filesystem—without affecting your main infrastructure.

Sandboxes are in private preview. APIs and features may change as we iterate. Sign up for the waitlist to get access.

From the LangSmith homepage, select Sandboxes to manage all your sandbox resources.

Resources

Snapshots

Build filesystem images from Docker images or capture a running sandbox, then boot sandboxes from them.

Service URLs

Access HTTP services running inside sandboxes via authenticated URLs.

Auth proxy

Inject credentials into outbound API requests without hardcoding secrets.

SDK usage

Create and manage sandboxes programmatically with the Python or TypeScript SDK.

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