Custom Payment Gateway Integration for Osclass Pay Plugin | 2–5 Day Delivery

Create a new, customer defined payment gateway integration plugin - extension - for Osclass Pay Plugin.

Integration cost is usually 120-260€
Standard delivery time is within 2-3 business days, in special cases it may be up to 5 business days
Only apply to payment gateways those has own hosted payment checkout page. Means customer is redirected to 3rd party service (gateway) to complete checkout.
Gateway must support "redirect" or "form submission" way of payment to redirect user to checkout page.
Gateway must support custom price and items definition (ie 2Checkout does not support this, they require products to be created in their system first)
Our team does not integrate solutions where it's required to build form to enter credit card details (and process payment on background: server-to-server) due to security concerns of such solution.

Please discuss your gateway integration with support team prior purchasing this service.

Last update of product description has been on 2. June 2025

Product features and functionality

MB Themes

Premium developer

221 products

View seller profile

Product support includes

Direct support from Adrian Brezak, founder of MB Themes and developer maintaining these products in production

12 months access to support and latest updates

Support can be extended anytime for 35% of base price (+12 months)

Availability of seller to answer questions

Answer technical queries about product features

Assistance with reported bugs or issues

Help with installation in case there is problem

Product in English language (other locales provided by community)

Proven support scale: 9,200 resolved tickets and 47,000 support messages

Long-term maintenance track record: 2,200+ updates released across products

Updates are based on customer support cases, Osclass core changes, PHP/MySQL updates, and real-world usage feedback

Public support reputation: see verified customer reviews on Trustpilot

Support does not include

Customization service, custom work or feature requests

Support on free/gratis plugins delivered with premium themes

Installation service

Translation and localization services

Support quality, trust and engineering proof

Seller updated this product 1 time

Seller rating is 4.7 of 5 - Excellent (583 reviews)

Member since 2017

Support available in:

English

Czech

Slovak

This product is not compatible with WordPress. All our themes and plugins work exclusively with Osclass.

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Frequently asked questions

Question: What business problem does Custom payment gateway integration - NON REFUNDABLE solve?

Answer: Create a new, customer defined payment gateway integration plugin - extension - for Osclass Pay Plugin.

Question: Which type of marketplace benefits most from Custom payment gateway integration - NON REFUNDABLE?

Answer: Integration cost is usually 120-260€ Standard delivery time is within 2-3 business days, in special cases it may be up to 5 business days Only apply to payment gateways those has own hosted payment checkout page.

Question: How should Custom payment gateway integration - NON REFUNDABLE be set up before launch?

Answer: Start with sandbox credentials, configure callback/webhook endpoints, and verify complete checkout-to-order-status flow before enabling live payments The setup details for Custom payment gateway integration - NON REFUNDABLE are different in production.

Question: Is Custom payment gateway integration - NON REFUNDABLE compatible with recent Osclass and PHP versions?

Answer: Re-test payment flow after Osclass core updates, PHP version changes, and gateway API/webhook policy updates The setup details for Custom payment gateway integration - NON REFUNDABLE are different in production.

Question: How can performance impact be tested for Custom payment gateway integration - NON REFUNDABLE?

Answer: Performance impact is usually low, but checkout latency should be measured under real traffic with gateway API round-trip included The setup details for Custom payment gateway integration - NON REFUNDABLE are different in production.

Question: How can problems with Custom payment gateway integration - NON REFUNDABLE be diagnosed quickly?

Answer: Most issues come from incorrect credentials, blocked webhook routes, currency mismatch, or account restrictions at provider side. Logs from both sides are needed for diagnosis The setup details for Custom payment gateway integration - NON REFUNDABLE are different in production.

Changelog - Product updates history

Version 1.0.0 released on 2025-06-02

Initial service release

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€ 189.99

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Price is in Euros

MB Themes

Adrian Brezak is the founder of MB Themes, specializing in Osclass development, marketplace SEO, performance optimization, and payment integrations, with 12 years of experience in Osclass. He has delivered 2,200+ product updates and resolved over 9,200 support tickets throughout his career. See verified customer reviews on Trustpilot