r/fintechdev

Hey everyone,

I’ve been working on a new open-source project called Verdict Engine, and I’ve just released an early beta.

The idea is to build a fraud/risk assessment engine for payment systems that combines rules with basic machine-learning-based risk scoring. The goal is to eventually make it easier for payment providers, fintechs, banks, and developers to integrate fraud detection into their systems without having to build everything from scratch.

The project is still very much in the beta/early development stage, so I’m mainly looking for feedback rather than users or customers right now.

🔗 GitHub: https://github.com/verdict-engine/verdict-engine

🌐 Documentation: https://verdict-engine.github.io/verdict-ui/

I’d particularly appreciate feedback on:

Architecture and API design

Fraud/risk scoring approach

Developer experience

Features that would actually be useful in a payment environment

Potential problems or limitations you see with the current approach

If you have experience with fraud detection, payment systems, fintech, ML, or backend engineering, I’d especially love to hear your thoughts.

Feel free to be critical — it’s an early beta and that’s exactly what I'm looking for.

Hi everyone,

I’ve spent the past three years working in e-commerce, selling through both marketplaces and my own website. Dealing with payment providers firsthand is what got me interested in fintech, and I’m now trying to understand the payments industry more deeply.

For people who work in payments or run an online business: what is still frustrating, slow, expensive, or unnecessarily complicated about accepting payments?

I’m especially interested in the parts around getting a business set up with a provider, checkout and payment acceptance, payouts, disputes, or managing payments across different channels.

What do you currently do when this happens? Have existing providers solved it well, or do you still rely on workarounds?

I’m not promoting a product lol I’m trying to learn from people who deal with this firsthand. Thanks

I’m building an open-source fraud detection engine for payment systems — looking for feedback

What still frustrates businesses about accepting payments online?