Cumbuca Launches First Regulatory Proxy for Brazil's Open Finance
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Cumbuca Launches First Regulatory Proxy for Brazil's Open Finance

The YC-backed startup offers a fast-track for international firms to enter the Brazilian market.

12/3/2025
Yassin El Hardouz
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Fintech innovator Cumbuca has launched a pioneering B2B service, establishing itself as Brazil's first regulatory proxy for the Open Finance and Pix ecosystem. This new offering provides international firms a streamlined path into the nation's booming financial market. The launch marks a strategic pivot from the company's consumer-focused app, addressing a critical gap for global businesses seeking to innovate in the region.


Navigating Brazil's Complex Financial Landscape

Brazil is a global benchmark for financial innovation, with its Pix instant payment system and mature Open Finance framework attracting significant international interest. However, foreign companies face substantial barriers when attempting to enter this lucrative market. The primary options involve either a multi-year licensing process or partnering with existing infrastructure providers, both with significant downsides that can stifle growth.

Each of these traditional paths presents considerable drawbacks for new entrants. Securing a license directly from Brazil's Central Bank is a notoriously slow and complex undertaking that can take several years to complete. Alternatively, using Open Finance-as-a-Service (OFaaS) platforms forces companies to surrender operational control, tying them to a third party's technology, policies, and support functions.

A Third Way: The Regulatory Proxy Model

Cumbuca introduces a novel "third way" with its regulatory proxy model, designed to resolve this market dilemma. The company allows clients to operate under its Payment Initiation Service Provider (PISP) license while building their own in-house infrastructure. This unique approach bridges the gap between maintaining full operational autonomy and ensuring complete regulatory compliance in the complex Brazilian market.

This model grants clients the flexibility to develop customized products and adhere to their own stringent security standards, free from the limitations of generic APIs. CEO Daniel Ruhman notes it is a premium service for large organizations looking to invest seriously in payment initiation. This allows them to internalize processes, manage costs, and optimize their operational effectiveness for long-term success.

From Consumer App to B2B Powerhouse

The company's strategic shift was born from its own journey as a B2C fintech that developed an expense-sharing application. The founding team directly experienced the frustrations of securing a license and the constraints imposed by third-party infrastructure partners. This firsthand knowledge provided them with a unique perspective on the critical needs of businesses operating within the ecosystem.

The pivot was driven by the monetization challenges of the consumer app, as the widespread adoption of Pix made its business model unviable. Despite a growing user base, the B2C operation was not profitable, prompting the leadership to change course. The transition has been remarkably successful, achieving profitability and positive cash flow within just three months of the pivot.

Building an Expert Team for a Regulated Future

To deliver on its promise of "regulatory peace of mind," Cumbuca has assembled a team of industry veterans. Key appointments include Gustavo Lino, former president of the Brazilian Association of Payment Transaction Initiators, as Head of Policy. The team also features Nic Marcondes, a key architect of Brazil's Open Finance framework, ensuring deep institutional knowledge.

Strong backing from investors like Lightspeed Venture Partners, Supera Capital, and Verve Capital underscores market confidence in Cumbuca's vision. Mercedes Bent of Lightspeed highlighted the company's deep sector expertise and unique position to enable global firms in Brazil. With this support, Cumbuca aims to onboard ten major clients in its first year of B2B operations.


Cumbuca's launch as a regulatory proxy is a pivotal evolution in Brazil's fintech sector, creating a vital gateway for international companies. By combining its regulatory license with deep industry expertise, the company is set to become a key enabler of innovation. This transformation not only secures Cumbuca's future but also provides an essential new service for the global financial industry.