Generic AI hallucinate on Brazilian financial regulation. Lawyers are expensive. The rules change constantly. Regulus is an AI chatbot trained exclusively on official Central Bank normatives — Open Finance and Pix regulations, technical docs, and message catalogs. Ask regulatory questions in natural language, get answers with references to original sources. Built by Cumbuca, a licensed Payment Institution in Brazil. Free to use
Hey PH! Bruno here, COO at Cumbuca.
We're a Payment Institution in Brazil, which means we live and breathe Central Bank regulation every single day. Open Finance, Pix, SCR — our team has to stay on top of hundreds of normatives, circulars, and technical specs that change regularly.
Here's what frustrated us: when you ask ChatGPT or Claude about Brazilian financial regulation, you get confident-sounding answers that are often wrong. These models weren't trained on the specific normatives, and the stakes are too high for "close enough."
So our data engineering team built Regulus — an AI chatbot trained exclusively on official Central Bank sources. It covers Open Finance and Pix regulations (normatives, technical documentation, message catalogs). When it gives you an answer, it points to the source.
**Who this is for:**
- Compliance officers at small fintechs who don't have a 10-person legal team
- Product managers who need to check "can we legally do X?" before building
- Developers who need to find specific technical requirements in regulatory docs
It's free to use. We built it because we believe that lowering the barrier to understanding regulation makes the whole ecosystem better. More people playing by the rules = a healthier market.
Right now it covers Open Finance and Pix. If there's demand, we'll expand to other areas of financial regulation.
This is part of Cumbuca Launch Week — we're shipping 5 tools this week to make Brazil's financial ecosystem more accessible.
Curious to hear from you:
- Have you ever been burned by wrong AI answers on regulatory questions? What happened?
- If you work in compliance — what's the regulation you spend the most time deciphering?
- What other areas of financial regulation should we cover next?
Hey guys, congrats! Loved seeing another Brazilian launch here today, besides ours!
It has helped me so much to navigate the complex regulatory ecossystem in Brazil! Really happy to be sharing this amazing product with everyone!
Is the API surface the same in both modes so you don’t have to rewrite everything?
About Regulus by Cumbuca on Product Hunt
“AI chatbot trained on Brazil's Central Bank regulations”
Regulus by Cumbuca launched on Product Hunt on May 4th, 2026 and earned 118 upvotes and 8 comments, placing #9 on the daily leaderboard. Generic AI hallucinate on Brazilian financial regulation. Lawyers are expensive. The rules change constantly. Regulus is an AI chatbot trained exclusively on official Central Bank normatives — Open Finance and Pix regulations, technical docs, and message catalogs. Ask regulatory questions in natural language, get answers with references to original sources. Built by Cumbuca, a licensed Payment Institution in Brazil. Free to use
Regulus by Cumbuca was featured in Fintech (46.9k followers), Legal (6.1k followers) and Artificial Intelligence (467.6k followers) on Product Hunt. Together, these topics include over 109.1k products, making this a competitive space to launch in.
Who hunted Regulus by Cumbuca?
Regulus by Cumbuca was hunted by Bruno Cury. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Regulus by Cumbuca stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Bruno Cury