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

# Topics

> Available WebSocket topics.

Clients receive real-time updates by subscribing to one or more topics.

Topics are passed as strings in the `args` field of the **Subscribe** message and removed using the **Unsubscribe** message.

A single WebSocket connection can maintain multiple active topic subscriptions simultaneously.

***

## Public Topics

Public topics provide real-time market data and do not require authentication.

| Topic Pattern                | Example                      | Description                                  |
| ---------------------------- | ---------------------------- | -------------------------------------------- |
| `orderbook.{depth}.{symbol}` | `orderbook.10.BTC-USDCx`     | Order book snapshots and incremental updates |
| `trade.{symbol}`             | `trade.BTC-USDCx`            | Public trade stream                          |
| `ticker.{symbol}`            | `ticker.BTC-USDCx`           | 24-hour ticker updates                       |
| `kline.{interval}.{symbol}`  | `kline.1m.BTC-USDCx`         | Candlestick (OHLCV) updates                  |
| `all_liquidations.{symbol}`  | `all_liquidations.BTC-USDCx` | Liquidation events                           |
| `insurance_pool.{symbol}`    | `insurance_pool.BTC-USDCx`   | Insurance pool updates                       |
| `adl_alert.{symbol}`         | `adl_alert.BTC-USDCx`        | ADL alert notifications                      |

***

## Private Topics

Private topics require authentication and stream account-specific events.

| Topic             | Description             |
| ----------------- | ----------------------- |
| `order`           | Order updates           |
| `position`        | Position updates        |
| `execution`       | Trade execution updates |
| `account_balance` | Account balance updates |

***

Examples, payload schemas, and message formats are available in the [**WebSocket Reference Public**](./api-reference/websockets/public) and [**WebSocket Reference Private**](./api-reference/websockets/private).