# Historical Data

{% hint style="info" %}
**Historical price trends can indicate the future direction of a cryptocurrency**
{% endhint %}

Historical data provides several years of daily historical crypto prices, volumes, trades, and aggregates for each cryptocurrency.

Historical data is exchange specific, so some exchanges provide more historical data than others. If you want to save large amounts of historical data, please [contact us here](mailto:sales@abyiss.com).

## How It Works

Historical data is accessible on the [**`trades`** ](https://docs.abyiss.com/crypto-api/rest-apis/last-trade)and [**`aggregates`** ](https://docs.abyiss.com/crypto-api/rest-apis/aggregates-bars)market data endpoints.

To access historical data, use the **`since`** parameter. The **`since`** parameter accepts a Unix timestamp from where you want the data to start.

To help convert Unix timestamps we use [https://www.unixtimestamp.com](https://www.unixtimestamp.com/).

| Parameter | Data Type | Description                                           |
| --------- | --------- | ----------------------------------------------------- |
| `since`   | Int       | Unix Timestamp from where you want the time to start. |

## Historical Data

<mark style="color:blue;">`GET`</mark> `https://api.abyiss.com/v1/{exchange}/{market}/trades?since={Unix Timestamp}`

Returns an object with historical trade data.

#### Path Parameters

| Name                                       | Type   | Description                                         |
| ------------------------------------------ | ------ | --------------------------------------------------- |
| exchange<mark style="color:red;">\*</mark> | string | Unique exchange identifier used by Abyiss.          |
| market<mark style="color:red;">\*</mark>   | string | Unique Crypto Pair identifier used by the exchange. |

#### Query Parameters

| Name                                     | Type   | Description                                                             |
| ---------------------------------------- | ------ | ----------------------------------------------------------------------- |
| since<mark style="color:red;">\*</mark>  | int    | Unix Timestamp from where you want the data to start. (Historical Data) |
| limit                                    | int    | Number of results per request. Maximum 50,000. (default 200)            |
| apiKey<mark style="color:red;">\*</mark> | string | Your Abyiss API Key                                                     |

{% tabs %}
{% tab title="200: OK Success" %}

```javascript
{
    "exchange": "binance",
    "market": "BTC/USDT",
    "trades": [
        {
            "id": "2214",
            "timestamp": "1503000000087",
            "price": 4307.56,
            "size": 3.789232,
            "cost": 16322.344193920002,
            "side": "buy"
        },
        {
            "id": "2215",
            "timestamp": "1503000038104",
            "price": 4325.23,
            "size": 0.229059,
            "cost": 990.73285857,
            "side": "buy"
        },
}
```

{% endtab %}

{% tab title="401: Unauthorized Unauthorized -- Invalid API Key" %}

```json
{
    "Unauthorized": "Invaild API Key"
}
```

{% endtab %}
{% endtabs %}

### Response Object

**Trades** Example URL:[ https://api.abyiss.com/v2/cex/binance/btc-usdt/trades?since=1503000000000\&limit=100\&apiKey=](https://api.abyiss.com/v2/cex/binance/btc-usdt/trades?since=1503000000000\&limit=100\&apiKey=)

```json
{
    "exchange": "binance",
    "market": "BTC/USDT",
    "trades": [
        {
        "id": "2214",
        "timestamp": "1503000000087",
        "price": 4307.56,
        "size": 3.789232,
        "cost": 16322.344193920002,
        "side": "buy"
        },
}
```

**Aggregates** Example URL: <https://api.abyiss.com/v2/cex/binance/btc-usdt/aggregates/1h?since=1503000000000&limit=100&apiKey=>

```json
{
    "exchange": "binance",
    "market": "BTC/USDT",
    "aggregates": [
        {
        "t": 1503000000000,
        "o": 4307.56,
        "h": 4354.84,
        "l": 4258.56,
        "c": 4346.74,
        "v": 48.975472
        },
}
```