---
title: Introduction | Avara
description: Sell AutoScribe and/or Viewer as a service from your platform — one Avara org, many isolated customers. Deep integration; expect a real API implementation.
---

Avara Express is how **integration partners sell AutoScribe and/or Viewer as a service** to their own customers, inside their own product. You keep one Avara organization. Each of your customers is an Express customer (`cus_…`) with its own users and studies.

That is a **deep integration**. Fitting Express into your data model takes a real API implementation: you create and label tenants, attach studies, and map your users onto Express customers so isolation holds. Plan for that work before you enable it.

It is built for:

- **PACS companies** embedding AutoScribe or Viewer in their product
- **Distributors with their own software platform** reselling AutoScribe or Viewer to sites they serve
  - Distributors who only do support and resale — without a software platform of their own — should use a **separate Avara organization per customer**, not Express
- **EHR/RIS companies** adding dictation and viewing as a deep integration, not a bolt-on login

Your customers never need their own Avara org. You host them; isolation is membership-based, with no leakage across tenants. Read [Isolation](/integration/express/isolation/index.md) before you attach studies.

## Billing

Avara bills **your platform**. You charge your customers whatever you want — usage, seats, or your own service fees.

Avara does **not** charge setup or service fees — not to get Express running, and not to get your platform, PACS, or integration off the ground. There is no onboarding invoice for help standing up AutoScribe, Viewer, or Express.

## Enable Express

1. In Settings, open **Avara Express**.
2. Click **Enable Avara Express** and confirm.

Enabling Express is permanent for the organization. It cannot be turned off.

After enable, an **Express Customers** tab appears in the sidebar. Study create accepts `expressCustomerId`. Your API key needs **Express customer access** — set that when you create the key in [AutoScribe API Config](/integration/autoscribe/api-config/index.md) or [Viewer API Config](/integration/viewer/api-config/index.md).

## Integration steps

1. **Enable Express** — Settings, as above. Irreversible.

2. **Create customers** — One Express customer per tenant you sell to. [Customers](/integration/express/customers/index.md).

3. **Add users after they accept invites** — Invite from [AutoScribe](/autoscribe/inviting-users/index.md) or [Viewer](/viewer/inviting-users/index.md). They must accept before you can add them to a customer. [Users](/integration/express/users/index.md).

4. **Attach `expressCustomerId` on study create** — Members only see studies tagged with a customer they belong to. [Studies](/integration/express/studies/index.md).

Do not make end-customer users admins. Admins see every study in the org.

For every Express operation the SDKs expose, see the [API Reference](https://docs.avarasoftware.com/api).