Payment Processing Software to Become a Payment Service Provider
Grow your revenue by providing a complete stack of online and offline payment processing services for merchants, enabling them to accept payments, from online to POS and QR payments. Use the PayTech Platform by SDK.finance to start providing your payment services without having to build your processing and payment gateway software from scratch.
Request a quoteThe software you need to build a world-class
payment processing business
Catering for all business types
Empower different businesses – from online e-commerce marketplaces to brick-and-mortar stores with to accept payments across various channels.
Streamlined payment acceptance
Get maximum flexibility to customize the payment transaction flow and offer frictionless transaction processing both in-store and a secure payment gateway for online transactions.
Any currency, multiple channels
Support an unlimited number of currencies and let merchants accept card payments, process digital wallet transactions as well as bank debit card payments, etc.

Become a payment service provider through the pre-developed processing software
Accelerated time-to-market
SDK.finance merchant payment processing solution offers a shortcut to the product development cycle, putting you right on the doorstep of offline or online processing product launch, rather than starting from the ground up, which saves you months of active development.
Facilitated integrations
Save on feature development and speed up the releases thanks to the integration-ready architecture of SDK.finance software for payment acceptance. 400+ API endpoints let you connect a broad set of payment providers and other services and process transactions fast and cost-effectively.
Flexible delivery
Choose a hybrid-cloud SaaS model for an affordable and quick launch, an on-premise source code version for full control and independence from the vendor, or switch between the two.
Simplified compliance
Hybrid-cloud SaaS delivery model lets you have your transactional core app hosted on a public cloud provider and maintained by our team, while you host your entire database with sensitive details on-premise or in the private cloud for top security and facilitated data localization compliance.
Fast-track your payment processor product launch and evolution
Launch your online payment system product up to 3-5 times faster* by integrating the necessary functionality via SDK.finance 400+ RESTful APIs with lower capital expenditure (CAPEX).
*compared to building them from the ground up
The latest innovations at your service
Easily integrate with the best solutions on the market to expand the core feature set of your merchant payment processing software.
Beat the competition
Get to win the race for customers by being the first to cater for their emerging payment acceptance needs and introduce new features thanks to SDK.finance merchant payment provider software integration-focused architecture.
Grow your profit
Get the most out of flexible transaction fees and limits configuration possibilities to maximize your revenue, plus attract and retain customers via personalized tariffs.
Independent pricing for transactions and products
Manage deposit and payment fees apart from payment cards fees and wire transfers (SWIFT/SEPA) for maximum flexibility.
Personalized tariffs
Easily tweak pricing for the previously set up customer segments. Leverage individual tariffs to meet specific business contract terms
Impose money flow limits
Manage potential risk by activating turnover and transaction limits for specific merchant segments, based on the risk level.
Deep dive into the out-of-the-box feature set
Show your audience you understand their routine and ensure they don’t waste time on trivial tasks. Attract merchants with the top-notch UI that streamlines and optimizes business processes for them. Help them achieve higher efficiency and reap the rewards of a quickly growing customer base and profits.
- Online account creation
- Documents uploading
- Manual KYC-related data collection
- Ability to integrate a KYC-vendor
- Transaction history
- View details of each transaction (currency, amount, type, time and date)
- Transaction history export
- Transactions on the map
- online POS registration
- web-payments acceptance via:
- hosted payment page
- host-to-host integration
- Configurable checkout page
- send invoices and payment requests via:
- push notifications
- dynamic QR-codes with POS data and transaction sum
- a payment link via email, messengers or SMS
- In-store payments:
- Via credit or debit cards
- from digital wallet
- from bank account
- Online payments (checkout page):
- by credit or debit cards
- from digital wallet
- from bank account
- Tips acceptance
- Receiving settlement amounts to the merchant’s:
- bank account
- card
- mobile phone
- digital wallet
- manually, from transaction history
- via sending email receipts after the transaction
- initiating refund transactions on the customer’s demand
- opening a digital wallet for the merchant’s personal use
- individual
- merchant
- administrator
- accountant
- compliance manager
Choose your Development mode
Our team will help you from the idea to its implementation in code and interface for your payment processing product.
Dedicated development team
With the SDK.finance professional development team, you can accelerate your FinTech project launch.
Use SDK.finance team of FinTech professionals with 10+ years of experience to start payment processing business faster.
- Accelerated payment processing system release.
- Ready financial backend Platform.
- Expert team without hiring headaches
- Saved in-house team’s resources
Self-service development
Give your team access to the SDK.finance PayTech platform for optimised development
Empower your tech team with a powerful core for faster and more efficient payment processing software development on top of the SDK.finance Platform.
- Ready FinTech software to build on top
- Don’t start from scratch
- Efficient development for in-house tech team
- SaaS and Source Code software mode available
Ready to get started? Get in touch with us!
SDK.finance Payment Processing Software FAQs
Yes, we provide an interactive sandbox demo environment on our Product Demo page. It’s available there and then, no need to send a demo request and wait.
There aren’t location-related restrictions for using our payment acceptance software, because the SDK.finance Platform can be easily customized, which allows you to comply with the regulatory requirements. With the hybrid-cloud SaaS version, you manage and host the main database, which helps to adhere to the data localization regulations.
SDK.finance uses the most advanced technology stack for building its payment acceptance platform. We develop code on the Java 17 LTS. SDK.finance provides security testing with JUnit, Arquillian and OWASP security scanner. We review the code quality with SonarQube, UpSource and FindBugs.
The implemented REST and gRPC API architecture helps to facilitate integration with third-party providers and services and assists in driving your banking or payment product innovation.
The SDK.finance payment processing is available as SaaS version or with the source code license. It is possible to download and modify our front-office and back-office UI packs/UI kits on GitHub, but all functionality lies in using the APIs of the SDK.finance backend app.
Our digital payment processor software is available in two variants:
- The SaaS version is available on major cloud providers marketplaces like AWS or Azure, with a subscription-based payment model. You get the app deployed on the cloud, the database is hosted on your own server for the sake of data localization compliance and security.
- An on-premise version comes with the source code license, available for a one-time flat fee.
Learn more about the details of the source code purchase.
To buy the payment acceptance platform source code you can contact us, and share your product vision.
The purchasing process takes 3 steps:
- Technical audit of the product by your team
- Knowledge transfer period from our team to yours
- Signing the contract and code handoff.