iyzico Payment Integration
Connect your iyzico account and customers can pay by card as they book. Every transaction passes through 3D Secure verification, and card details are processed on iyzico's secure infrastructure and never written to AsentTime.
What it gives you
3D Secure verification
Every transaction is verified by the cardholder's bank, minimising fraudulent payments.
Deposit or full payment
You decide which services require prepayment and how much.
Card details never stored
Card data is processed at iyzico; only the transaction result returns to the system.
Automatic reconciliation
A scheduled background job compares transaction states at iyzico with the system and corrects discrepancies.
Marketplace (sub-merchant) support
A sub-merchant structure is supported, letting payments transfer to your business.
Payment reporting
Payments received are reported by service, staff member and date.
What you need
An approved iyzico merchant account
The API key and secret key from your iyzico panel
Your business tax and bank account details (for the iyzico application)
How to connect
Open an iyzico account
Apply for a merchant account in your business's name through iyzico and wait for approval.
Get your API credentials
Obtain your API key and secret key from the iyzico panel.
Enter them in AsentTime
Select iyzico in the payment settings and enter your keys. They are stored encrypted.
Set your payment rules
Decide which services require prepayment and how much.
Test it
Make a booking yourself and verify the payment flow end to end.
How card security works
Card details are never written to the AsentTime database. At the payment step the customer enters them on iyzico's secure screen, and only whether the transaction succeeded returns here.
Your iyzico API keys are stored encrypted. Even someone with direct database access could not read them in usable form.
Every transaction passes through 3D Secure and is not completed until the customer's bank approves it, which protects both the business and the customer.
Why reconciliation is necessary
The most common problem in online payments is a transaction that succeeded at the provider but was never completed in the system — usually because of a network interruption or a browser closed too early.
AsentTime solves this with reconciliation: a job running on a schedule compares transaction states at iyzico with the records here and corrects the differences.
Nothing a customer paid for is left invisible in the system, which matters for both accounting accuracy and customer satisfaction.
The marketplace (sub-merchant) model
Where payments taken through a platform need to reach the business directly, a sub-merchant structure is used.
In this model each business is defined as its own sub-merchant at iyzico, and payments are transferred to that business's account.
Frequently Asked Questions
Are card details stored in the system?
No. Card data is processed on iyzico's secure infrastructure and only the transaction result is returned.
Do I need to open an iyzico account?
Yes. You need to apply for and be approved as a merchant in your business's name.
What if payment is taken but the booking is not created?
A scheduled reconciliation job compares iyzico's records with the system and corrects the discrepancy.
Are my API keys secure?
Yes. They are stored encrypted and never held in readable form in the database.
Can I use it alongside PayTR?
One payment provider is active per business; you choose iyzico or PayTR.
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Get started for your business today
Setup takes minutes and no card is required. You can use every feature free of charge during the trial period.
