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The Zero Runtime CLI (zrt) is a Python package: it is both the developer CLI and the console-mode engine, so there is just one thing to install. Install it once, authenticate, and you are ready to deploy.

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Install the CLI

Install zrt with pip:
Requires Python 3.11 or newer. If pip maps to Python 2 on your system, use pip3 install zrt. To keep it isolated, install it inside a virtual environment.

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Verify the install

You should see the installed version printed back, for example zrt 0.0.1.

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Authenticate

Log in to connect the CLI to your Zero Runtime account. This opens your browser to confirm the login; the CLI waits for approval and then stores your token locally.
Expected output
If the link expires or the browser doesn’t open, run zrt auth login again. You can copy the printed URL into a browser manually.

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Try a live agent instantly

Once you’re signed in, the fastest way to see Zero Runtime working is zrt quickstart. It downloads a ready-made example into a new folder and runs it locally, opening a playground in your browser so you can talk to it in about 30 seconds.
Pass an example to skip the picker, or --no-open to run without opening the browser:
quickstart is the quickest way to try an agent and get a working project to build on. To deploy it to the cloud, follow Deploy an Agent.

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Sign out

When you want to disconnect the CLI from your account on this machine:

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Next

Deploy an Agent

Create a project, test it locally, then deploy, step by step.

CLI Reference

Browse every command and flag.