Letta Agent on web and mobile

You can use Letta Agent from the web or your phone at chat.letta.com. Your agents, memory, conversations, and tools carry over from the desktop app and CLI, so you can start a task on one device and continue it somewhere else.

Web / mobile setup

To get setup visit chat.letta.com and create an account or login. Agents that you create on web / mobile are managed through Constellation, so you can access them from any device (including the CLI and desktop app) as long as you use the same login.

Execution environments

On web and mobile you can change the execution environment with the click of a button. Use execution environments to teleport the same agent with the same memories and context from one computer to another.

Cloud sandboxes

By default, when you interact with an agent on chat.letta.com it deploys the agent into a cloud sandbox. Sandboxes are useful for quick tasks because they work without any setup and keep execution separate from your laptop.

Self-hosted remote environments

If you want the agent to work on a specific machine instead — for example your laptop, workstation, or a cloud VM — deploy a remote environment. Once it is connected, you can select it from the environment picker in chat.letta.com, and the agent’s shell, file, and tool calls will run there instead of in the sandbox.

You can even click on the filesystem icon and edit code / files manually in the remote environment your agent is connected to.

To make any machine accessible as a remote environment to chat.letta.com, simply install the Letta Code CLI on that machine, then run letta server to register the machine with Constellation. For more information, see our remote environments docs.

Using your personal computer as an environment

There simplest way to make a machine available from web and mobile is to download the Letta desktop app, then toggle “Allow remote access” from the settings page.

Alternatively, you can also download the CLI and run letta server in a terminal window.