> For the complete documentation index, see [llms.txt](https://docs.tardis.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tardis.dev/historical-data-details/huobi-dm-swap.md).

# HTX Coin-M Perpetual

HTX Coin-M Perpetual historical market data details - instruments, data coverage and data collection specifics

HTX Coin-M Perpetual historical data for **all its instruments** is available since **2020-03-28**.

{% embed url="<https://api.tardis.dev/v1/exchanges/huobi-dm-swap>" %}
See HTX Coin-M Perpetual historical data coverage: available symbols, channels, date ranges and incidents
{% endembed %}

### Downloadable **CSV** files

Historical CSV datasets for the first day of each month are **available to download without a Data API key**. See [downloadable CSV files documentation](/downloadable-csv-files/overview.md).

{% hint style="info" %}
Derivative ticker datasets are available since 2020-06-24.
{% endhint %}

| data type             | symbol  | date       |                                                                                                               |
| --------------------- | ------- | ---------- | ------------------------------------------------------------------------------------------------------------- |
| incremental\_book\_L2 | BTC-USD | 2020-04-01 | [Download sample](https://datasets.tardis.dev/v1/huobi-dm-swap/incremental_book_L2/2020/04/01/BTC-USD.csv.gz) |
| trades                | BTC-USD | 2020-04-01 | [Download sample](https://datasets.tardis.dev/v1/huobi-dm-swap/trades/2020/04/01/BTC-USD.csv.gz)              |
| derivative\_ticker    | BTC-USD | 2020-07-01 | [Download sample](https://datasets.tardis.dev/v1/huobi-dm-swap/derivative_ticker/2020/07/01/BTC-USD.csv.gz)   |

### API Access and data format

Historical data format is the same as provided by real-time HTX Coin-M Perpetual WebSocket API with addition of local timestamps. If you'd like to work with **normalized data format** instead (same format for each exchange) see [downloadable CSV files](/downloadable-csv-files/overview.md) or official [client libs](/api/quickstart.md) that perform data normalization client-side.

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

```python
# pip install tardis-dev
import asyncio
from tardis_dev import Channel, replay

async def main():
    async for local_timestamp, message in replay(
        exchange="huobi-dm-swap",
        from_date="2024-01-01",
        to_date="2024-01-02",
        filters=[Channel(name="depth", symbols=["BTC-USD"])],
        api_key="YOUR_API_KEY",
    ):
        # messages as provided by HTX Coin-M Perpetual real-time stream
        print(message)

asyncio.run(main())
```

See [Python client docs](/python-client/quickstart.md).
{% endtab %}

{% tab title="Node.js" %}

```javascript
// npm install tardis-dev
import { replay } from 'tardis-dev';

const messages = replay({
  exchange: 'huobi-dm-swap',
  from: '2024-01-01',
  to: '2024-01-02',
  filters: [{ channel: 'depth', symbols: ['BTC-USD'] }],
  apiKey: 'YOUR_API_KEY'
});

// messages as provided by HTX Coin-M Perpetual real-time stream
for await (const { localTimestamp, message } of messages) {
  console.log(localTimestamp, message);
}
```

See [Node.js client docs](/node-client/quickstart.md).
{% endtab %}

{% tab title="cURL & HTTP API" %}

```bash
curl --compressed -g 'https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01&filters=[{"channel":"depth","symbols":["BTC-USD"]}]&offset=0'
```

{% embed url="<https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01&filters=[{%22channel%22:%22depth%22,%22symbols%22:[%22BTC-USD%22]}]&offset=0>" %}
Example API response for HTX Coin-M Perpetual historical market data request
{% endembed %}

See [HTTP API docs](/api/http-api-reference.md).
{% endtab %}

{% tab title="cURL & tardis-machine" %}

```bash
curl -g 'localhost:8000/replay?options={"exchange":"huobi-dm-swap","filters":[{"channel":"depth","symbols":["BTC-USD"]}],"from":"2024-01-01","to":"2024-01-02"}'
```

[Tardis-machine](/tardis-machine/quickstart.md) is a locally runnable server that exposes API allowing efficiently requesting historical market data for whole time periods in contrast to [HTTP API](/api/http-api-reference.md) that provides data only in minute by minute slices.

See [tardis-machine](/tardis-machine/quickstart.md) docs.
{% endtab %}
{% endtabs %}

### Captured real-time channels

{% embed url="<https://www.htx.com/en-us/opend/newApiPages/?id=485>" %}
See HTX Coin-M Perpetual WebSocket API docs providing documentation for each captured channel's format
{% endembed %}

{% hint style="info" %}
Click any channel below to see [HTTP API](/api/http-api-reference.md#data-feeds-exchange) response with historical data recorded for it.
{% endhint %}

* [trade](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22trade%22}]) Trade executions stream
* [depth](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22depth%22}]) Order book snapshots and incremental updates stream (depth.size\_150.high\_freq). Order book integrity is validated using sequence numbers (`version` field) — on missed message the WebSocket connection is restarted.
* [bbo](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22bbo%22}]) — available since **2020-08-17** Best bid and ask quote updates stream
* [liquidation\_orders](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22liquidation_orders%22}]) — available since **2020-06-23** Liquidation events stream
* [basis](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22basis%22}]) — available since **2020-06-23** Basis and index price updates stream
* [funding\_rate](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22funding_rate%22}]) — available since **2020-06-23** Funding rate updates stream
* [open\_interest](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22open_interest%22}]) — available since **2020-06-23** — generated channel Generated open interest snapshots from REST endpoint every 4-6 seconds per instrument. Messages marked as `"ch":"market.<symbol>.open_interest"` and `"generated":true` with data field in the same format as REST API response.
* [detail](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22detail%22}]) 24h contract statistics stream
* [contract\_info](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22contract_info%22}]) — available since **2020-06-23** Contract definition and status updates stream
* [elite\_account\_ratio](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22elite_account_ratio%22}]) — available since **2020-10-29** — generated channel Generated elite account long/short ratio snapshots from REST endpoint using 5min period buckets.
* [elite\_position\_ratio](https://api.tardis.dev/v1/data-feeds/huobi-dm-swap?from=2024-01-01\&filters=\[{%22channel%22:%22elite_position_ratio%22}]) — available since **2020-10-29** — generated channel Generated elite position long/short ratio snapshots from REST endpoint using 5min period buckets.

### Market data collection details

[Market data collection infrastructure](/faq/general.md#what-is-your-infrastructure-setup) for HTX Coin-M Perpetual is located in GCP asia-northeast1 region (Tokyo, Japan) since **2020-06-19**. Before that it was located in GCP europe-west2 region (London, UK).

Real-time market data is captured via **multiple WebSocket connections** to `wss://api.hbdm.vn/swap-ws`.

{% hint style="info" %}
HTX servers are located in AWS ap-northeast-1 region (Tokyo, Japan).
{% endhint %}


---

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