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

# API overview

> Backend API orientation

The Uno backend is a Fastify application that exposes the control-plane API for workspaces, sandboxes, conversations, and related operator workflows.

## Base URL

| Environment | URL                      |
| ----------- | ------------------------ |
| Local       | `http://127.0.0.1:3000`  |
| Production  | Configure per deployment |

## Authentication endpoints

| Method | Path            | Purpose                         |
| ------ | --------------- | ------------------------------- |
| `POST` | `/auth/sign-up` | Create an account               |
| `POST` | `/auth/sign-in` | Sign in with email and password |

See [Create an account](/account-creation) for request fields and provisioning behavior.

## Coming next

OpenAPI specs and endpoint reference pages will be wired here later. For now, explore route handlers under `apps/backend/src`.

<Warning>
  Do not treat this page as an authoritative API reference yet.
</Warning>