> ## Documentation Index
> Fetch the complete documentation index at: https://onextel-09023014.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# OneXtel Documentation

> Enterprise messaging APIs and campaign tools — WhatsApp, RCS, SMS, and omnichannel.

export const Page = ({children}) => <div style={{
  maxWidth: '1200px',
  margin: '0 auto',
  padding: '0 clamp(20px, 5vw, 64px) 64px'
}}>
    {children}
  </div>;

export const Hero = () => <div style={{
  background: '#1E2A5E',
  borderRadius: '16px',
  padding: '56px 40px',
  textAlign: 'center',
  marginBottom: '32px'
}}>
    <h1 style={{
  color: '#FFFFFF',
  fontSize: '2.2rem',
  margin: 0
}}>
      Build on One<span style={{
  color: '#C23B34'
}}>X</span>tel
    </h1>
    <p style={{
  color: '#E2E8F0',
  maxWidth: '620px',
  margin: '16px auto 0'
}}>
      One platform for WhatsApp, RCS, and SMS at enterprise scale — send via a single
      omnichannel API, orchestrate fallback across channels, and run campaigns from the
      OneXtel portal.
    </p>
  </div>;

<Page>
  <Hero />

  ## Developer API reference

  <CardGroup cols={3}>
    <Card title="WhatsApp API" icon="whatsapp" href="/api-reference/whatsapp/overview">
      Send template and session messages, manage media, opt-outs, and receive callbacks.
    </Card>

    <Card title="RCS API" icon="message" href="/api-reference/rcs/overview">
      Rich cards, carousels, and template messaging over RCS Business Messaging.
    </Card>

    <Card title="SMS API" icon="globe" href="/api-reference/sms/overview">
      Domestic and international SMS with delivery reports.
    </Card>
  </CardGroup>

  <CardGroup cols={2}>
    <Card title="Omnichannel & Fallback" icon="arrows-split-up-and-left" href="/api-reference/omnichannel/overview">
      One send API across channels, automatic fallback, message status and history.
    </Card>

    <Card title="WhatsApp Callbacks" icon="webhook" href="/api-reference/whatsapp/callback-events">
      Incoming messages, delivery notifications, button clicks, and URL click events.
    </Card>
  </CardGroup>

  ## Platform guides

  <CardGroup cols={2}>
    <Card title="WhatsApp Campaigns" icon="bullhorn" href="/guides/whatsapp/quickstart">
      Create templates and launch WhatsApp campaigns from the portal.
    </Card>

    <Card title="RCS Campaigns" icon="mobile-screen" href="/guides/rcs-campaigns/overview">
      Run rich RCS campaigns end to end.
    </Card>

    <Card title="Multi-Channel Fallback" icon="shuffle" href="/guides/omnichannel/fallback-overview">
      Configure fallback chains so every message reaches its recipient.
    </Card>

    <Card title="SMS" icon="paper-plane" href="/guides/sms/overview">
      Portal guide for SMS campaigns, templates, and reporting.
    </Card>
  </CardGroup>

  ## Plugins & connectors

  Send through OneXtel from the tools your team already works in — no code required.

  <CardGroup cols={3}>
    <Card title="MoEngage" icon="chart-line" href="/plugins/moengage">
      WhatsApp and RCS campaigns from MoEngage.
    </Card>

    <Card title="WebEngage" icon="chart-simple" href="/plugins/webengage">
      WhatsApp and RCS campaigns from WebEngage.
    </Card>

    <Card title="All connectors" icon="plug" href="/plugins/overview">
      Salesforce, LeadSquared, Zoho CRM, Shopify, Optimove, and more.
    </Card>
  </CardGroup>

  <Note>
    Integrating against `api.onex-aura.com` or `365cx.io`? Those are earlier APIs, still documented
    under [Archived APIs](/legacy/overview). Everything current uses `api.onexaura.com`.
  </Note>
</Page>


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