> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metronome.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Self-serve checkout

<Note>
  **PRIVATE BETA**

  This feature is currently in Private Beta, contact [sales@metronome.com](mailto:sales@metronome.com) for early access.

  Don't have a Metronome account? [Sign up to get started.](https://signup.metronome.com)
</Note>

Metronome self-serve checkout lets you move from a sandbox to a production environment without going through a manual sales process. You select a package, provide a payment method, and Metronome automatically provisions your production environment.

Self-serve checkout supports:

* **Credit card setup** for card-on-file billing via Stripe
* **Stripe Shared Payment Tokens** for delegated purchases through agents and the Stripe CLI
* **Multiple package tiers** so you can upgrade as you grow

## Upgrading and downgrading

### Upgrades

You can self-serve upgrade to a higher package tier at any time. When you upgrade:

* The new package takes effect immediately.
* You pay the platform fee for the new package.
* Your remaining commit balance for billing and ingest events roll over. (note: commit balances do not roll over from the Startup plan, which is paygo with no platform fee.

To upgrade to a custom Enterprise package, reach out to [sales@metronome.com](mailto:sales@metronome.com).

### Downgrades

Mid-term downgrades are not supported in the app. If you elect to downgrade, the change takes effect at the end of your current contract term. You'll see a confirmation of the effective date when you initiate the downgrade.

## Agent and CLI checkout

Metronome integrates with Stripe Projects and the Stripe CLI so that users and agents can provision Metronome without going through the UI:

* Use a Stripe Shared Payment Token for delegated payment authorization.
* Select from an approved subset of Metronome packages.
* Metronome provisions the production environment and returns environment details on success.

A full audit trail is recorded for all delegated purchases.