Personal Finance & AI

Hisabi (Nexo)

A full-stack AI-integrated personal finance application with a ledger-based backend, multi-account support, and an embedded AI assistant that understands your finances.

Visit nexosoft.online

About the Project

Hisabi — marketed as Nexo — is a personal finance and ledger application built for individuals who want full visibility into their income, expenses, and budgets. The app features a robust double-entry ledger backend in Laravel, a responsive Vue.js frontend, and a built-in AI assistant (NexoAI) that can answer questions about your spending, summarize transactions, and surface financial insights directly inside the app.

Key Features

Multi-account ledger with debit/credit tracking
Transaction management with category tagging
Budget creation and monitoring
NexoAI — embedded AI chat for spending analysis
Monthly and custom date-range reports
Multi-user access control (Billing Admin)
AI Tool Logs for full transparency

Tech Stack

Vue.js (Frontend)

Laravel (Backend)

LLM Tool Calling

Ledger Architecture

MySQL

REST API

Architecture Highlights

The backend uses an optimized double-entry ledger system, ensuring data integrity and accurate balance calculations even at scale. The AI assistant is connected to the user's own data via a secure tool-calling layer — it never sees raw credentials, only sanitized summaries and query results. This design also makes the AI module independently reusable in other finance-related products.