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

# Guides

> Examples of common use cases

## How-to guides

<Card title="Calculating borrowing fees" href="/developer/integrators/guides/calculating-borrowing-fees" horizontal />

<Card title="Calculating liquidation price" href="/developer/integrators/guides/calculating-liquidation-price" horizontal />

<Card title="Building the virtual order book" href="/developer/integrators/guides/building-the-virtual-order-book" horizontal />

<Card title="Mark + Index prices introduction" href="/developer/integrators/guides/mark-+-index-introduction" horizontal />

## Migration guides

<Card title="v10.2 migration" href="/developer/integrators/guides/v10.2-migration" horizontal />

<Card title="v10 migration" href="/developer/integrators/guides/v10-migration" horizontal />

<Card title="Support endpoints migration (Jan 2026)" href="/developer/integrators/guides/support-endpoints-migration" horizontal />

<Card title="History endpoints migration (Dec 2025)" href="/developer/integrators/guides/history-endpoints-migration" horizontal />

<Card title="Backend endpoint refactor (Oct 2025)" href="/developer/integrators/guides/backend-endpoint-refactor" horizontal />