Explore diverse payment options for a seamless experience


Empowered with a comprehensive understanding of transaction processes, you gain insights into Note
A security protocol to enhance the security of online credit and debit card transactions. It adds an additional layer of verification.
3DSecure authentication
and Note
The process of returning money to the customer in case of a canceled order or a returned item.
, ensuring seamless transactions and effective troubleshooting.

Integration essentials

Solidgate provides a range of tools and features, including API reference, SDKs, host-to-host integration, digital wallets, alternative payment methods, payment forms, payment pages, and e-commerce plugins.

The Solidgate API allows businesses to seamlessly integrate Solidgate’s, customize solutions, and meet specific requirements. Solidgate SDK simplify integration with features like Note
The creation of a secure digital token to represent sensitive information, enhancing security in transactions.
token generation
and secure transaction handling.

This collection offers example API requests to assist in understanding the effective use of our services.
▶ Solidgate Postman Collection

Solidgate’s host-to-host integration empowers merchants with full control over the checkout page for customization and management of the payment process. Digital wallets and alternative payment methods boost Note
Metrics that indicate the percentage of users who complete the payment process once they have initiated it.
checkout conversion rates
and cater to localized preferences.

Payment forms, payment pages, and e-commerce plugins provide user-friendly and secure payment options, streamlining transaction processing. These features can be customized to align with branding and Note
The adaptation of the payment process to meet the language, currency, and other region-specific requirements.


Leveraging Solidgate’s easily customizable Payment form can enhance your customers’ payment experience.

This guide will lead you through the Payment form integration flow, including backend setup, SDK installation, API instance creation, and merchant data configuration.

The Solidgate SDK offers an effective solution for integrating this feature, facilitating the tokenization of sensitive data, 3D Secure authentication, and offering multiple payment method support.

Additionally, Solidgate provides robust customization options for its payment forms, enabling a seamless and localized user experience. The form supports the display of additional fields required for transactions.


The Payment page is a convenient tool that enables you to create a secure Payment page for your customers in just a few clicks.

Following a series of straightforward integration steps, you can set up a solution to process payments via nine payment methods:

Additionally, the Payment page offers a straightforward process for customizing the customer experience, allowing you to display elements such as your brand logo, public name, and more.


Understanding host-to-host integration is essential for a merchant planning to integrate with a payment system, as it offers secure transactions, flexible payment options, efficient management of credit card payments, and features like 3D Secure, tokenization, and recurring transactions.

Moreover, it offers various API types for different transactions, making it easy for merchants to handle operations like authorization, settlement, and refunds. It also facilitates payment without CVV, simplifying customer interactions and enhancing conversion rates.

Please note that only PCI-DSS certified merchants are eligible for full API as the merchant collects sensitive card data and hosts payment form.


Understanding alternative payment methods (APMs) is an essential step for businesses to enhance their customer experience and increase conversion rates. Moreover, localization plays a crucial role in the payment process.

Another strategic advantage for businesses comes from the integration of popular APMs such as PayPal and Sofort, among others.

By understanding the specific dispute and refund procedures associated with each APM, businesses can enhance their customer service, effectively addressing customer complaints, and in turn, mitigate potential losses.

Overall, a comprehensive grasp of APMs can provide businesses with a competitive edge in today’s dynamic market landscape.

Payment form vs Payment page

Both options have their own advantages and considerations, allowing businesses to choose the one that aligns best with their specific needs and priorities.

Payment page Payment form
Ease of Integration Uses API integration for a streamlined setup. Offers a Postman collection to generate a payment page link. Provides a detailed guide for integration, including aspects from backend setup to form initialization. Accommodates integration with or without the SDK.
Customization options Allows customization of order details, page appearance, and content. However, it offers less extensive customization compared to the custom Payment form. Offers extensive customization, accommodating various requirements for payment processing in different countries. This includes a choice of form templates, customizable styles, control over the display of optional fields, dynamic order update, custom submit flow, and other advanced features.
User action tracking All tracking is on the Solidgate side and is not provided to the Merchant. Provides user action tracking via Interaction events (input, click, focus, etc.). The rest of the events are not related to tracking but rather about integration, such as handling successful or failed orders, form mounting, and user form submission.
Payment methods supported Supports nine payment methods, including Card, Apple Pay, Google Pay, PayPal, and region-specific options. All configurations for additional payment methods are handled on the Solidgate side. Supports card payments and Apple Pay, Google Pay. The merchant needs to make some additional configurations for adding wallets on the Payment form (such as domain verification).
Additional features Allows customization of button color, font, and logo, providing flexibility in design options. The form offers features such as form update, custom submission, and a range of other advanced functionalities.
PCI Compliance Fully PCI-compliant, reducing the burden of obtaining PCI DSS certification for merchants.

In conclusion, the choice between the Payment form and Payment page depends on various factors, including customization requirements, development resources, security preferences, and the importance of a seamless user experience.

A demo page is accessible for previewing the main features and customization options of the Payment page, offering an interactive method to assess its adaptable design

The Payment form provides extensive customization, control, and integration possibilities but requires more development effort and security responsibility. On the other hand, the Payment page offers simplicity and quick setup, while sacrificing some customization options and potentially impacting the user experience with the redirect flow.

Businesses should carefully evaluate their specific needs and priorities to determine the best fit for their payment acceptance strategy.


Testing integration, utilizing webhooks, understanding error codes are essential aspects of a successful payment system integration for merchants.


These practices ensure a seamless payment experience, minimize risks, and optimize business operations.

Gaining access to Solidgate’s API involves understanding how to authenticate requests and handle validation errors.

You will need credentials: Public and Secret keys, available in your personal account on the HUB. These keys are necessary for direct API calls and webhook signature verification.

Include authentication headers in every API request, including webhooks, and be aware of potential errors caused by incorrect requests or formatting issues to ensure smoother API operation.

Testing allows merchants to identify and resolve any issues or bugs, ensuring an error-free payment process for their customers.

Merchants can use this environment along with the corresponding webhook keys and API to simulate payments and various payment scenarios. They can test successful transactions, as well as failed transactions, to validate the integration and ensure that the system handles different scenarios correctly.

This not only helps in delivering a seamless payment experience to customers but also minimizes the risk of financial losses or customer dissatisfaction due to payment-related problems.

Therefore, investing time and effort in testing is a crucial step to ensure the successful integration of their payment system.

Webhooks enable automatic actions based on events, providing real-time and accurate information.

By establishing an endpoint and configuring event types, merchants can receive notifications on card order status, alternative payments, subscriptions, chargebacks, and fraud alerts.

Ensuring endpoint availability and handling security measures are essential. By leveraging webhooks, you can automate processes, stay updated, and enhance integration for improved efficiency and customer experience.

Understanding error codes is essential for merchants integrating with Solidgate.

These codes provide valuable information about transaction failures, allowing merchants to assist customers effectively.

By analyzing the decline code, merchants can provide specific instructions to resolve the issue. Familiarity with common decline codes like “0.01 General decline”, “0.02 Order expired”, and “0.03 Illegal operation” enables merchants to guide customers toward successful transactions.

Promptly addressing and resolving issues ensures a seamless payment experience and customer satisfaction.

Get started–>