# Quick Start

## Get your API keys

Your API requests are authenticated using API keys. Any request that doesn't include an API key will return an error.

You can generate an API key at any time.

<figure><img src="https://3525782617-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F5q0FPCPGyevUhcT42yvO%2Fuploads%2FvRHSu4uiWw0wjH03SbFD%2Fimage.png?alt=media&#x26;token=02507773-0bcc-4b7d-9a9d-f31a7eae44df" alt=""><figcaption></figcaption></figure>

To create an API key:

1. Sign up in offical website and go to the API keys section.
2. Click **Create API**.
3. Select a blockchian and type in a name for the key and click **Create**.
4. Copy or write down the created API key.

<figure><img src="https://3525782617-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F5q0FPCPGyevUhcT42yvO%2Fuploads%2Fg56WSOGQVBpWYh82jx0L%2Fimage.png?alt=media&#x26;token=8008c967-a221-46df-b620-5b5d7bd712e0" alt=""><figcaption></figcaption></figure>

## Blockchain API Endpoint

`https://api.data123.io/<BLOCKCHAIN>/<API KEY>/<VERSION>`

**BLOCKCHAIN**:  Aleo,  Filecoin,  ethereum .......

**NETWORK**:   mainnet, testnet

Take a look at how you might call this method of Aleo via `curl`:

REST:

{% tabs %}
{% tab title="curl" %}

```
curl https://api.data123.io/aleo/<API KEY>/v1/testnet3/transaction/at1td9klwgpevhgqcpfd5tvu88pv67uajugnxqysd93w40kx8na2cyq8qh3ls
```

{% endtab %}
{% endtabs %}

JSON-RPC:

{% tabs %}
{% tab title="curl" %}

```
curl https://api.data123.io/aleo/<API KEY>/rpc/v1/testnet3 \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"getTransaction","params":['at1td9klwgpevhgqcpfd5tvu88pv67uajugnxqysd93w40kx8na2
cyq8qh3ls'],"id":1}' 
```

{% endtab %}
{% endtabs %}