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

# Authentication

> How to obtain and use API keys for the Dria network.

# Authentication

## Getting an API key

The easiest way is via the CLI:

```bash theme={null}
dria init
```

This generates a wallet, registers it, and saves your API key to `~/.dria/config.json`.

### Manual registration

You can also register programmatically by signing a message with an Ethereum wallet and calling:

```
POST /v1/auth/wallet
```

**Request body:**

```json theme={null}
{
  "address": "0xYourWalletAddress",
  "signature": "0xSignedMessage",
  "timestamp": 1710000000
}
```

The `signature` is an EIP-191 personal sign of the message: `dria-login-{timestamp}`.

**Response:**

```json theme={null}
{
  "id": "user-abc123",
  "key": "dkn_live_...",
  "tier": "free",
  "rpmLimit": 60
}
```

## Using the API key

Include the key as a Bearer token in the `Authorization` header:

```
Authorization: Bearer dkn_live_...
```

Example with curl:

```bash theme={null}
curl https://inference.dria.co/v1/models \
  -H "Authorization: Bearer dkn_live_..."
```

## Environment variable

You can set the API key as an environment variable instead of using the config file:

```bash theme={null}
export DKN_API_KEY=dkn_live_...
```

The CLI and SDK will pick it up automatically.