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

# Integrations overview

> Connect Nixflex agents to calendars, CRMs, messaging, and automation tools - per phone number.

Nixflex connects your voice and SMS agents to the tools your business already uses. Integrations are configured **per phone number**, so each number can connect its own accounts and credentials - one clinic's calendar, another shop's CRM, all under one agent.

<Note>
  Integrations are set **per phone number**, not per agent. This means one shared agent (for example a dental receptionist) can serve many numbers, each booking into its own calendar or posting to its own CRM.
</Note>

## How integrations work

Every integration runs in one of two ways, and some support both:

<CardGroup cols={2}>
  <Card title="During the call (live actions)" icon="bolt">
    The AI calls the tool mid-conversation and waits for the result - for example checking calendar availability, then booking, while the caller is still on the line.
  </Card>

  <Card title="After the call (webhooks)" icon="paper-plane">
    When the call ends, Nixflex sends the call summary, booking, or extracted data to the destination you choose - a CRM, a Slack channel, or your own webhook.
  </Card>
</CardGroup>

## Available integrations

<CardGroup cols={2}>
  <Card title="Cal.com" icon="calendar" href="/actions/calcom">
    Check availability and book, reschedule, or cancel appointments live during a call.
  </Card>

  <Card title="Google Calendar" icon="calendar-days" href="/actions/google-calendar">
    Book directly into a connected Google Calendar during the call.
  </Card>

  <Card title="Slack" icon="slack" href="/integrations/slack">
    Post call summaries and alerts to a Slack channel after each call.
  </Card>

  <Card title="GoHighLevel" icon="users" href="/integrations/gohighlevel">
    Send the caller's contact details and a call summary to your GoHighLevel account.
  </Card>

  <Card title="Zapier & Make" icon="bolt" href="/integrations/zapier-make">
    Connect to thousands of apps through Zapier or Make using post-call webhooks.
  </Card>

  <Card title="Twilio" icon="phone" href="/integrations/twilio">
    Bring your own Twilio account for phone numbers and carrier connectivity.
  </Card>
</CardGroup>

## Configuring via API

Every integration can be turned on, checked, or removed for a number through the API, so you can automate setup from your own application. See the [API reference](/api-reference/introduction) for the full per-number integration endpoints.