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

# Collateral

> Collateral balance updates (`SubscriptionKind::Collateral`).

Subscribe with **`Collateral`**, **`assetId`**, and **`account`**. Requires an authenticated **account** context — [Private WebSocket streams](/guides/ws-private).