Connect Callbook to
the Tools You Already Use
Callbook syncs with Google Calendar and QuickBooks today, so booked jobs, customers, and invoices flow through automatically — no manual data entry. Webhooks and a REST API connect everything else.
Calendars
The AI checks live availability and books straight onto your calendar
Google Calendar
Two-way sync. The AI reads real-time availability before offering a time and writes the booked job to your calendar.
Apple Calendar
Subscribe to your Callbook schedule as a calendar feed so booked jobs show up on iPhone, iPad, and Mac.
Accounting
Keep customers, invoices, and payments in sync
QuickBooks
Customers, invoices, and payments created in Callbook sync to QuickBooks Online — no double entry.
Notifications
Built in — nothing to connect
SMS/Text
Booking confirmations and reminders to customers; instant lead and emergency alerts to your team.
Call summaries, new-booking notifications, and reports delivered to your inbox.
Developers
Connect anything else
Webhooks
Real-time events — new call, appointment booked, appointment updated — pushed to any URL you choose.
API Access
REST API for calls and appointments, authenticated with an API key you generate in Settings.
Integration guides
See exactly how the live integrations work, step by step.
How Integrations Work
Connect
Click to connect your tools. Most integrations take under 2 minutes to set up.
Configure
Choose what data syncs and how. Map fields to match your workflow.
Automate
Data flows automatically. Appointments, customers, and jobs sync in real-time.
Build Custom Integrations
Need something custom? Our REST API gives you full access to calls, appointments, customers, and more. Build exactly what your business needs.
- Full REST API documentation
- Webhooks for real-time events
- API keys you create and revoke yourself in Settings
- Zapier-ready: REST hooks for new calls and bookings
// Example: Get recent calls
const response = await fetch(
'https://api.getcallbook.com/v1/calls',
{
headers: {
'Authorization': 'Bearer YOUR_API_KEY'
}
}
);
const calls = await response.json();
// Returns call data, transcripts,
// appointments booked, and moreWhy Integrations Matter for AI Phone Answering
Calendar Sync Eliminates Double-Booking
When a customer calls to book a service appointment, the AI needs to see your real-time availability — not a copy that was synced an hour ago. Callbook integrates directly with Google Calendar, so the AI checks live availability before offering a time slot. If you block 2 PM on your calendar for a job you booked yourself, the AI stops offering that slot to callers immediately. The result is no double-bookings and no manual calendar reconciliation at the end of each day.
Jobs, Customers, and Invoices Without Double Entry
When the AI books a water heater replacement for a plumbing company or an HVAC tune-up, the job lands in your Callbook schedule with the customer's name, address, phone number, and problem description already filled in, and you get the details by text the moment the call ends. Mark the job done and the draft invoice is waiting for review; once it is sent, the customer, invoice, and payment sync to QuickBooks. Electricians, appliance repair techs, and roofers stop typing up call notes.
Webhooks, the API, and Custom Workflows
For businesses with their own tools, Callbook sends real-time webhooks when a call comes in or an appointment is booked or changed, and the REST API returns your calls and appointments on demand. That is enough to push new leads into a CRM, post call summaries to a team channel, or keep a dispatch board in sync — and it is the same foundation our Zapier connection is being built on. Dedicated connectors for field-service platforms are on the roadmap; if you rely on one, tell us which.
All Features
See every feature included with Callbook AI.
Plumbing Answering Service
AI phone answering built for plumbing businesses.
AI Phone Answering Guide
Complete guide to AI call handling for contractors.
Plans & Pricing
Simple monthly plans with included minutes.
How an AI Receptionist Works
From greeting to booked appointment — the full call flow.
Calendar Integration Guide
How AI books appointments on your calendar automatically.
Ready to Connect Your Tools?
Sign up free and set up integrations in minutes.