Introduction

B-Accesible — accessible digital banking powered by responsible AI, designed for everyone.

B-Accesible

“La banca que te acompaña. Tecnología que te entiende.” “Banking that accompanies you. Technology that understands you.”

B-Accesible is a proof-of-concept (PoC) for inclusive digital banking designed for everyone — especially people with low digital literacy and visual, auditory, or cognitive disabilities.

It integrates responsible artificial intelligence, easy-read language, natural voice in Mexican Spanish, and adaptive assistance modes to create a safe, comprehensible, and human banking experience.

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Why B-Accesible?

In Mexico, over 50% of the adult population lacks access to formal financial services, and nearly 40% has low digital or functional literacy. B-Accesible addresses this gap by making digital banking:

• Accessible — WCAG 2.1 AA compliant, with screen reader support, large text, high contrast, and voice navigation
• Adaptive — AI automatically detects user needs and adjusts the interface accordingly
• Safe — Real-time fraud and risk detection with transparent, explainable alerts
• Inclusive — Designed for older adults, people with disabilities, and people with limited tech experience

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Core capabilities

Adaptive accessibility

AI-powered accessibility profiling automatically configures the interface — screen reader mode, large text, high contrast, or voice feedback — based on user needs.

AI nudging engine

Detects when users struggle on a screen and offers contextual, non-intrusive guidance — respecting user autonomy at every step.

Fraud risk detection

Scores every transaction in real time using explainable risk factors like unusual amounts, new beneficiaries, and location changes.

SPEI transfers & ledger

Full SPEI-based money transfers, account management, beneficiary management, and transaction history.

Open Finance

Connect and sync external bank accounts through the Open Finance integration layer.

Microservices architecture

Built on .NET microservices with an Ocelot API Gateway, JWT authentication, and a FastAPI AI service.

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Technology stack

Layer	Technology
Frontend	React 19, Vite, TailwindCSS, Framer Motion
API Gateway	Ocelot (.NET)
Auth & Profile	ASP.NET Core Web API
Ledger	ASP.NET Core Web API
Open Finance	ASP.NET Core Web API
Analytics	ASP.NET Core Web API
AI Service	Python, FastAPI, scikit-learn
Database	SQL Server 2022
Container	Docker Compose

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Get started

Quickstart

Clone the repo, configure environment variables, and run the full stack with Docker Compose in minutes.

Architecture

Understand how the microservices connect, the API Gateway routes, and how the AI service integrates.

API Reference

Explore all REST endpoints for authentication, ledger, AI, and open finance.

Ethics & AI

Read the ethical principles, privacy design, and responsible AI methodology behind B-Accesible.