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

# Explore APIs & integrations

<Info>
  Nango is the leading provider of **API access for AI agents & apps**. It is designed for developers building integrations for their users, with full flexibility.
</Info>

<CardGroup cols={1}>
  <Card title="All APIs & integrations" icon="list" href="https://www.nango.dev/api-integrations">
    800+ APIs & thousands of integrations.
  </Card>

  <Card title="Request or contribute a new API" icon="circle-question" href="/integrations/contribute-or-request-api">
    We deliver them in \<48h.
  </Card>

  <Card title="Build custom integrations" icon="heart" href="/guides/functions/functions-guide#guide">
    It's fast & easy.
  </Card>
</CardGroup>