№ 011 · AI · 2026

CardSense

AI credit-card advisor for Indian users.

Year
2026
Category
AI
Stack
Claude API · React · Express
Links
Repo

What it does

CardSense analyzes your spending, tells you which card to use before each purchase, and shows exactly how much cashback you're leaving on the table, powered by the Claude API.

Three reasoning endpoints

  1. Dashboard: full transaction history, total spend, cashback earned vs. maximum possible.
  2. Card Advisor: given a merchant and amount, recommends the optimal card in real time.
  3. Chat: conversational advisor that knows your cards and transactions.

Architecture

[ React/Vite ]  ──/api/*──>  [ Express ]
                                  │
                                  ▼
                            [ Claude API ]
One Express process; Vite proxies /api/* to it in development.

Stack

Claude API · React 18 · Vite · Express 4 · Docker · Azure App Service · GHCR.