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.

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.

Permissions

Control which workspace members can interact with a sandbox after it is created.

CLI

Build snapshots, manage sandboxes, open consoles, and tunnel TCP ports from the command line.

SDK usage

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

---

Connect these docs to Claude, VSCode, and more via MCP for real-time answers.

Edit this page on GitHub or file an issue.