> For the complete documentation index, see [llms.txt](https://dev.guardian.hedera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.guardian.hedera.com/developer-tools-and-resources/api-reference/account-apis/registering-new-account.md).

# Registering New Account

**`POST /accounts/register`**

Registers a new user account with a username, password, and optional role.

**Authentication:** Bearer token required for non-demo mode (`Authorization: Bearer <token>`). Only a Standard Registry user may register new accounts outside of demo mode.

***

## Request

### Request Body

```json
{
  "username": "example_user",
  "password": "examplePassword123",
  "role": "USER"
}
```

| Field      | Type   | Required | Description                                                              |
| ---------- | ------ | -------- | ------------------------------------------------------------------------ |
| `username` | string | Yes      | The new account username                                                 |
| `password` | string | Yes      | The account password                                                     |
| `role`     | string | No       | User role: `STANDARD_REGISTRY`, `USER`, or `AUDITOR`. Defaults to `USER` |

***

## Response

### Success Response

**Status:** `201 Created`

```json
{
  "username": "example_user",
  "role": "USER",
  "did": null,
  "hederaAccountId": null
}
```

### Error Responses

| Status                      | Description                                 |
| --------------------------- | ------------------------------------------- |
| `401 Unauthorized`          | Caller is not authenticated (non-demo mode) |
| `403 Forbidden`             | Caller does not have Standard Registry role |
| `409 Conflict`              | Username already exists                     |
| `500 Internal Server Error` | Unexpected server failure                   |