Blog Announcements

Nov 7, 2023

Introducing Whalestack. Elevating Your Business with Digital Currency Payments

Embrace the future of cryptocurrency payment processing with Whalestack: the transformative evolution of COINQVEST. Discover how our rebrand and progressive features like multi-currency checkouts, seamless on- and off-ramps, Bitcoin Lightning, USDC, and EURC support are set to redefine seamless digital transactions for businesses worldwide.

Introducing Whalestack. Elevating Your Business with Digital Currency Payments

Hello COINQVEST Community,

Thank you for your partnership and the trust you've placed in our platform. Together, we've built a robust payment processing service that’s become a cornerstone of many businesses. As part of our commitment to growth and clarity, we're excited to share some news: COINQVEST is now Whalestack.

The Name

This change isn’t just about a new name—it’s about refining our identity to better reflect our values and the services we offer. "Whalestack" captures the essence of our platform—a powerful, reliable payment gateway designed for businesses of all sizes and shapes and the tech stacks they rely on. It's a name that resonates with our developer community and businesses, standing out as a dependable brand for all your payment processing needs. Let’s embark on this new chapter together, with a name that’s as straightforward and impactful as the solutions we provide. Welcome to Whalestack.

The Journey

As we look back on COINQVEST's path, we're reminded that our journey started with a genuine need—to facilitate Bitcoin payments more effectively within our own SaaS operations. This necessity sparked the creation of a solution that would grow well beyond our initial vision.

Winning the Stellar Community Fund was a humbling experience that recognized our efforts and placed us within a network of innovators and visionaries. This accolade propelled us forward, guiding us to become a Tier-1 network validator on Stellar, and eventually, an issuer and liquidity pool operator for digital assets such as Bitcoin and Litecoin.

Our commitment to compliance and security led us to become a licensed Virtual Asset Service Provider (VASP) in the EU, with Poland as our base—a step that further established our credibility and reliability in the financial ecosystem.

Today, COINQVEST has grown beyond its beginnings to serve thousands of clients—from online businesses and e-commerce platforms to fintechs, payment service providers, and independent freelancers. We've built a robust suite of digital currency payment APIs and SDKs, complemented by browser-based invoicing and payment management tools. Our services now encompass SEPA and SWIFT on- and off-ramps for stablecoins like USDC and EURC, ensuring that our clients can operate globally with ease and confidence.

The evolution to Whalestack is a continuation of this journey, grounded in learning and adapting to the needs of those we serve. This name change is a reflection of our ongoing dedication to enhancing our services, ensuring we remain a reliable partner in the ever-evolving landscape of digital payments.

Features Rollout

As Whalestack, we're thrilled to unveil a suite of new features designed to enhance the efficiency and breadth of our payment processing capabilities:

USDC and EURC On- and Off-Ramping

Integration with SEPA and SWIFT for USDC and EURC transactions represents a significant leap forward. This allows for smooth and secure transfers into and out of these stablecoins, providing a bridge between digital currencies and traditional banking networks. Our users can now benefit from the widespread adoption and lower volatility of these stablecoins, coupled with the convenience of familiar banking protocols.

Checkouts in EURC and USDC Using Stellar

We're streamlining the checkout process by enabling transactions directly in EURC and USDC via the Stellar network. This not only simplifies the payment process but also brings the stability of these pegged currencies into the mix, protecting against the volatility often associated with cryptocurrencies. For businesses, this means more predictable financial planning and for customers, a seamless and reliable payment experience.

Bitcoin Lightning Support

By integrating support for the Bitcoin Lightning Network, we're significantly improving transaction speed and reducing costs. This second-layer protocol is designed for instant payments across a network of participants, which means that Whalestack users can look forward to faster Bitcoin transactions that maintain the security of the blockchain but at a fraction of the time and cost.

Self-Custody Piping

Whalestack introduces 'Self-Custody Piping,' a seamless bridge between the convenience of SaaS and the security of self-custody. Automatically transfer funds to your own wallet after transactions or when your balance hits a set threshold. This feature delivers the best of both worlds: the ease of our platform's services with the assurance and control of self-custody.

Easy Asset Exchange

We've also made asset exchange more intuitive and streamlined. Our platform now facilitates the quick conversion between various cryptocurrencies and fiat, all within the user's account. This feature is tailored to enhance the user experience by offering flexibility and control over their assets, allowing for instant response to market changes or business needs.

Each of these new features is a building block in our goal to provide a comprehensive, user-friendly payment processing service that not only keeps pace with but anticipates the needs of the modern marketplace.

Commercial Benefits

Whalestack is strategically designed to enhance the commercial viability of your business by addressing specific financial challenges and opening new avenues for growth:

Turbocharge Your Profitability

With Whalestack, your operational efficiency gets a major upgrade. We cut through the excess costs of transaction fees to elevate your profitability, allowing you to reinvest in your business's growth.

Open New Revenue Streams

Dive into the crypto revolution with Whalestack and access a wealth of new customers. By offering crypto and stablecoin payments, you unlock new sales opportunities and meet the demand of a rapidly expanding digital currency market.

Broaden Your Horizons

Whalestack catapults your business onto the global stage. Cryptocurrencies and stablecoins eliminate geographical barriers, opening your doors to customers from every corner of the globe.

Increase Cash Flow

Feel the boost of immediate transactions and settlements with Whalestack. We enhance your liquidity, enabling you to manage your finances with unprecedented ease. And with reduced chargeback risks, your cash flow remains robust and reliable.

Slash Payment Costs

Cut down your transaction fees by up to 85% with Whalestack. We deliver cost-effective payment processing that benefits your bottom line and provides your customers with savings, enhancing your market competitiveness.

Fortify Your Revenue

Strengthen your defenses against fraud with Whalestack's irreversible blockchain transactions. This robust security ensures your revenue is protected, reducing the strain of financial disputes.

By addressing these key commercial benefits, Whalestack doesn’t just offer a payment processing solution; it offers a strategic tool that aligns with the financial goals of modern online businesses, providing them with the agility to adapt, scale, and thrive in the digital economy.

The Future

As Whalestack looks to the future, we're not just responding to market trends; we're ahead of them, innovating with purpose and vision.


Soon, we'll roll out e-invoicing, revolutionizing how businesses handle transactions and automate their billing, with the added security and efficiency of blockchain technology.

Cryptocurrency Subscriptions

We understand the complexity of implementing subscription models in blockchain's push environment. That's why we're committed to pioneering a solution that will enable recurring payment capabilities, empowering businesses to leverage the benefits of a subscription-based revenue model.


Our long-term vision includes developing marketplaces where users can create their own economic ecosystems. This ambitious feature will support third-party payouts and foster economic growth, mirroring the dynamism of traditional e-commerce within the decentralized space.

Whalestack's roadmap is ambitious and innovative, reflecting our unwavering dedication to meet and exceed the needs of our community. We are relentless in our pursuit to deliver the tools our users need to succeed in the ever-changing landscape of digital currency payment processing.

Thank You!

To our valued COINQVEST customers and newcomers alike, we invite you to transition with us to Whalestack, where we continue our shared journey towards financial innovation. Your accounts and services will move seamlessly to this new platform, ensuring an uninterrupted and even more enhanced experience.

We're eager to hear from you — your feedback fuels our growth and helps us tailor our services to your needs. Please reach out with your thoughts, questions, or any guidance you might need during this exciting transition.

Thank you for your unwavering trust and loyalty throughout our evolution. Your support has been pivotal in reaching this milestone. As we step forward as Whalestack, we renew our pledge to uphold the highest standards of service excellence and to continue delivering breakthrough innovations that empower your business.

Join us as we set sail on this new chapter. Together, we will navigate the promising seas of the digital payment landscape with Whalestack at the helm.

Marcin Olszowy
Marcin Olszowy Co-Founder