Integrate Lookzup With Your Existing Website or Application.

Thursday, Jul 2, 2026 | 7 minute read

Imagine your customer visits your website, browses services, books an appointment, pays online and instantly receives confirmation.

That’s exactly what LookzUp Developer APIs allow you to do.

The best part? You don’t need to rebuild your website. Whether your website is built on WordPress, PHP, Laravel, React, Angular, Node.js, ASP.NET or any other technology, LookzUp can seamlessly integrate into your existing website.

In this article, we’ll explain the entire process in plain English so that even if you’re not a developer, you’ll understand how the integration works and what your developer needs to do.

What is LookzUp Developer API?

Think of LookzUp as the engine behind your website.

Your customers will continue visiting your website, using your logo, your brand and your domain name. Behind the scenes, LookzUp securely handles customer registration, service management, appointment booking, invoicing and payment processing. Your visitors never know they’re interacting with another platform.

What Can You Add to Your Website?

Once integrated, your website can provide:

Customer Registration
Customer Login
Customer Profile Management
Browse Services
View Membership Packages
Online Appointment Booking
Home Service Booking
Salon/Clinic Booking
Online Consultation Booking
Invoice Generation
Online Payment Collection
Booking History
Customer Profile Synchronization

All while keeping your own branding.

Step 1: Get Your LookzUp Credentials.

The first thing your developer needs is three credentials provided by the LookzUp Support Team:

Access Key
Secret Key
Tenant ID

These credentials uniquely identify your business. They should never be stored inside your website’s front-end code. Instead, they should be securely stored on your server. For example, inside an environment (.env) file.

Step 2: Authenticate Your Website.

Every secure platform first verifies who is making the request.

Your website calls the getPrivateLabelAuthToken API using your Access Key, Secret and Tenant ID. LookzUp returns an authentication token. Think of this token as a temporary access pass.

Every future API request simply includes this token instead of repeatedly sending your secret credentials. This keeps your integration secure.

One of the biggest advantages of LookzUp is that you don’t have to replace your existing login system. If your website already allows customers to:

Sign Up
Login
Reset Password
Manage Accounts

You can continue using it. Whenever a new customer registers on your website, your server simply calls the createBusinessCustomer API.

LookzUp creates a corresponding customer account and returns a unique UUID. Think of this UUID as the customer’s permanent LookzUp identity. Store this UUID in your own database alongside your customer’s record.

Step 4: Complete the Customer Profile.

Once the customer is created, your website can send additional information such as:

Name
Date of Birth
Gender
Phone Number
Email
Profile Photo
Short Biography

using the addEditBusinessCustomerData API.

This converts the newly created customer into a fully functional booking customer.

Step 5: Display Your Services.

Now comes the exciting part. Instead of manually updating your website every time you add a new service, simply call the getBusinessServicePackageList API. Your website automatically receives information such as:

Service Name
Description
Duration
Images
Pricing
Discounts
Home Service Availability
Shop Service Availability
Online Service Availability
Taxes
Currency

Whenever you add, edit or remove services inside LookzUp, your website automatically shows the latest information. No manual updates required.

Step 6: Let Customers Choose Services.

Your customer simply:

Opens your website
Browses available services
Selects one or multiple services
Chooses date and time
Selects Home Service or Salon Visit

Exactly like booking a hotel or ordering food online.

Step 7: Book the Appointment.

Once the customer clicks Book Now, your website sends all booking information to the createCustomerBooking API.

This includes:

Customer UUID
Selected Services
Appointment Date
Start Time
End Time
Address
Total Price

LookzUp instantly creates the appointment and returns a unique Booking Hash ID. Save this Booking ID in your own database for future reference.

Step 8: Generate the Invoice.

If your business accepts advance payments or you want to priduce an Invoice, your website calls the createCustomerInvoice API. LookzUp automatically calculates:

Service Charges
Discounts
GST
Other Taxes
Total Payable Amount

An invoice is generated instantly. No manual calculations. No accounting headaches.

Step 9: Collect Online Payments.

Your customer now pays using your preferred payment gateway. After successful payment, your website simply calls the recordCustomerPayment API.

LookzUp updates:

Payment Status
Amount Paid
Due Amount
Payment Method
Invoice Status

Everything remains synchronized.

Step 10: Show Booking Details.

Whenever customers want to view their appointment, your website simply calls the getBookingDetails API. Your website can display:

Booking Status
Appointment Number
Selected Services
Customer Details
Business Details
Address
Invoice
Payment Status
Ratings
Reviews

Everything comes directly from LookzUp.

Step 11: Let Customers View Their Upcoming and Past Appointments.

A great booking experience doesn’t end after an appointment is created. Customers also expect to log in and easily view their booking history. LookzUp provides a dedicated getCustomerBookings API that retrieves all appointments associated with a customer account. This enables you to build a My Appointments or Booking History page directly into your website or mobile application.

Whenever a customer logs in, your website simply calls the getCustomerBookings API using the customer’s unique UUID. The API returns a paginated list of appointments, making it suitable for customers with many bookings. Your website can display information such as:

Appointment Number
Booking Date
Appointment Time
Booking Status
Payment Status
Amount Paid
Booking Reference ID

Because the API supports pagination, you can easily build an appointment history page that loads bookings in batches—for example, five, ten or twenty appointments at a time — providing a smooth experience even for long-time customers.

Is This Only for Developers?

Not at all.

As a business owner, you don’t need to understand every API. Simply share the API Documentation with your developer. Most experienced web developers can complete the initial integration in a single day because the APIs follow a straightforward REST architecture. Once completed, you’ll have a professional online booking platform running directly from your own website.

Frequently Asked Questions:

1. Do I need to rebuild my website?

No. LookzUp integrates with your existing website.

2. Can I continue using my current customer login?

Yes. LookzUp works alongside your existing authentication system.

3. Does LookzUp support online payments?

Yes. Invoices can be generated automatically and payments can be recorded after successful transactions.

4. Can customers book multiple services?

Yes. Customers can select multiple services within a single appointment.

5. Is LookzUp suitable for mobile websites?

Absolutely. The APIs can be integrated into responsive websites, mobile applications and desktop portals.

6. Can I customize the booking interface?

Yes. The APIs only provide the backend functionality. Your developers have complete freedom to design the user interface according to your brand guidelines.

Final Thoughts.

Customers today expect businesses to provide seamless online booking experiences. Whether you’re running a salon, clinic, spa, wellness centre or any appointment-driven business, offering instant booking and digital payments is no longer optional—it’s an expectation.

LookzUp helps you deliver that experience without rebuilding your website or investing months in custom software development. With secure authentication, customer management, appointment scheduling, invoicing and payment support available through easy-to-integrate APIs, you can launch a modern booking experience while keeping full ownership of your brand and customer relationships.

Instead of spending months building complex backend systems, focus on growing your business while LookzUp powers the technology behind the scenes.

Ready to Get Started?

Contact the LookzUp team to obtain your Access Key, Secret Key and Tenant ID and let your developers integrate a complete online booking ecosystem into your existing website. Write an E-mail to support@lookzup.com or raise a Support Ticket from LookzUp Business website or LookzUp Business mobile app .

Within a short time, your business can begin accepting appointments, generating invoices, managing customers and collecting payments — all under your own brand. For a details understanding on LookzUp API integration, see the Developer API section.