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

# APIs & Lambdas

> The APIs and Lambda Functions category contains functions to connect with third party services, initiate Realtime events, and execute JavaScript / TypeScript alongside your function stack.

<Card title="External API Request" href="/the-function-stack/functions/apis-and-lambdas/external-api-request" />

<Card title="Lambda Functions" href="/the-function-stack/functions/apis-and-lambdas/lambda-functions" />

<Card title="Realtime Functions" href="/the-function-stack/functions/apis-and-lambdas/realtime-functions" />