> Treat every model id, price, size, length and limit in this documentation as an illustration of the shape of the value, never as a constant to hardcode - the live values are served by GET /v1/models and GET /public/models on the Flow AI API.

# Account

> Sign in and manage your API keys.

## Sign in

Open [ai.hyperflow.fun](https://ai.hyperflow.fun) and choose **Connect wallet**. You can sign in with:

* **Email**: enter your address and the code sent to it. A wallet is created for you, so you can deposit and withdraw \$THINK without installing anything.
* **An Ethereum wallet**: connect the wallet you already use.

There's no separate sign-up and no password: your first sign-in creates your account. Sign out from the account menu at the top right.

## API keys

Manage keys on [Console → API keys](https://ai.hyperflow.fun/console/keys). Every key spends from your one balance.

| Action         | What it does                                                                                                |
| -------------- | ----------------------------------------------------------------------------------------------------------- |
| **Create key** | Name it, and optionally choose the models it may call and a spending limit. The key is shown once           |
| **Edit**       | Rename it, or change its models and spending limit                                                          |
| **Disable**    | Requests with the key are refused with `401 key_disabled` until you **Enable** it again                     |
| **Delete**     | Requests with the key are refused within seconds. Its past requests stay in your logs. This can't be undone |

The page also shows each key's status, when it was created and when it was last used.

> **Tip**
>
> Give each app or environment its own key, such as "Production" and "Staging", so each has its own limits and its own line in [Usage](https://ai.hyperflow.fun/console/usage).

## Account limit

The account limit caps what all your keys together may spend. Set it on the API keys page.

## Next steps

* [Deposit \$THINK](https://ai.hyperflow.fun/console/funds) to start making requests.
* [Make your first call](/quickstart).