Transparent
We put our cards on the table. If something doesn't make sense to you, we say so. If it does, we show you the numbers.
Launch Week 2026 · May 04–08
Opening what the ecosystem
keeps closed.
Five launches in one week. Each one opens a piece of Brazilian Open Finance — and together they form the symbol of a system that should always have been open.
Day 5 of 5 · all shipped
Five initiatives
Each launch opens a layer
the ecosystem kept closed.
Not features. Tools the market was missing. All five shipped during Launch Week — open any of them below.
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Day 1 · Mon, May 4 Compliance Regulus
AI chatbot trained on Central Bank regulations. Query Open Finance and Pix regulation in natural language, with answers you can trust.
Meet Regulus -
Day 2 · Tue, May 5 Open Source Open Finance Playground
Open, practical documentation built by people who implement it. The quick-start guide the ecosystem needed, built with Juspay.
Access the Playground -
Day 3 · Wed, May 6 Developer Tools Open Finance Data MCP
Connect your bank account to ChatGPT or Claude via Open Finance. Access your financial data directly in AI, no Cumbuca account needed.
Learn how to set it up -
Day 4 · Thu, May 7 Status Pages Status Pages
Public, real-time status pages for Open Finance infrastructure: PCM, SCR and banks. The transparency the ecosystem always needed.
See status now -
Day 5 · Fri, May 8 Market Intelligence Benchmark
Upload a financial infrastructure pricing proposal and find out if the price is fair. Comparative analysis using real market data.
Analyze your proposal
What drives us
The week reflects our values.
We know Open Finance more deeply than any other company in Brazil. And we decided to prove it the only way that counts: by building.
Deeply technical
We are the deepest Open Finance specialists in Brazil. Not marketing — it's what we do every day, year after year.
Pioneers
The first proxy for the regulated ecosystem. A model unique to Brazil, different from everything else on the market.
Partners
Even when something isn't our problem to solve, we help. We connect, teach, open doors. Creating value for the ecosystem is in our DNA.
Built by the Cumbuca team
Daniel Ruhman · Bruno Cury · Nic Marcondes · Pedro Castilho · Guilherme Vinicius · Gustavo Lino · Ana Luisa
Backed by
Want to know more?
Tell us about your use case.
We get back to you within one business day, with an engineer in the loop from email one. No SDR. No sales filter.