Get started
Sign In
Explore diverse payment options for a seamless experience


Empowered with a comprehensive understanding of transaction processes, you gain insights into Glossary
A security protocol for online transactions, adding an extra layer of authentication. Users may receive a one-time code for verification, reducing the risk of unauthorized transactions.
3D Secure
authentication and Glossary
The return of funds to a customer, typically for a returned or canceled purchase.
, ensuring seamless transactions and effective troubleshooting.

Integration essentials

The Solidgate API allows businesses to integrate the platform’s customized solutions and meet specific requirements. Solidgate SDK simplifies integration with features like Glossary
The process of replacing sensitive data with a unique identifier, token, for enhanced security.
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 Glossary
Metrics that indicate the percentage of users who successfully complete the payment process once they have initiated it.
checkout conversion rates
and cater to localized preferences.

An interface allowing users to input payment details for a transaction.
Payment forms
, Glossary
A web page where customers enter payment details to complete a transaction.
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 localization needs.

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.

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.

Supported payment methods, which are available according to customer locale, include:

Additionally, the Payment Page offers a straightforward process for customizing the Guide
Comprehensive guide for personalizing your payment page.
customer experience
, allowing you to display elements such as your brand logo, public name, and more.
Solidgate’s Payment Link offers the quickest integration for accepting payments without needing coding skills, providing a URL that directs customers to a unique payment page to complete their transactions.

After generation, you will receive your Payment Link URL to share with customers any way you prefer:

  • Embed into a website button.
  • Include in follow-up communications for abandoned carts.
  • Send directly via email.

Once created, the Payment Link is reusable: it allows customers to retry a payment in case of decline, and you can share it as many times as needed. The integration of a retry mechanism within the Payment Link addresses payment declines by prompting customers to try again, thereby minimizing lost sales opportunities.

Understanding host-to-host integration is essential for merchants, offering secure, flexible payment solutions 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 the payment form.
Understanding alternative payment methods (APMs) is an essential step for businesses to enhance their customer experience and increase conversion rates.

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, mitigating potential losses.

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


Testing integration, using Glossary
A mechanism enabling real-time communication and data exchange between different systems to notify about specific events or updates.
, understanding error codes, and ensuring compliance with industry legal and regulatory requirements are all 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: the 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, Glossary
Non-traditional payment methods beyond credit cards, such as digital wallets or bank transfers.
alternative payments
, Glossary
A payment arrangement where a customer authorizes the automatic and periodic withdrawal of funds from their account to fulfill ongoing financial obligations.
, Glossary
A dispute process initiated by a cardholder, resulting in the reversal of a transaction and funds returned.
, and Glossary
It involves a notification about an unauthorized transaction due to stolen payment or identity information, causing financial losses.

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 Glossary
A code indicating the reason for the rejection of a transaction.
decline code
, merchants can provide specific instructions to resolve the issue. Familiarity with common decline codes like Guide
The general group of declines. The card issuing bank did not complete the transaction successfully.
0.01 General decline
, Guide
The payment was not completed within the allocated timeframe, leading to order expiration.
0.02 Order expired
, and Guide
The card issuer may block a transaction due to legal violations, either related to the cardholder or originating from a sanctioned country.
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.
Navigating the intricacies of running a successful online business in modern world has its challenges.
Whether it is the migration of payment data to the payment processing provider, being sure your website adheres to best practices, or prioritizing legal and regulatory compliance, addressing these aspects is crucial for the smooth functioning of all business operations.

Settling all these operational and legal matters not only contributes to the overall success of your online business but also ensures alignment with best practices and legal standards.

By addressing the challenges proactively and transparently, merchants can strengthen their ethical and sustainable presence in the marketplace while reducing legal risks and fostering customer trust.

Looking for help? Contact us
Stay informed with Changelog