Smart Card Selection with AI Technology
capitalX automatically selects the best credit card for every purchase, maximizing your rewards and benefits in real-time.



Powerful Features to Optimize Your Credit
capitalX combines cutting-edge AI with user-friendly design to transform how you use credit cards.
Smart Card Selection
Our AI analyzes your credit cards and automatically selects the best one for each purchase to maximize your rewards.
Rewards Tracking
Track all your rewards, cashback, and points in one place with detailed analytics and insights.
Bank-Level Security
Your financial data is protected with end-to-end encryption and advanced security measures.
Real-Time Decisions
Get instant recommendations at checkout for which card to use based on current promotions and rewards.
AI-Powered Insights
Receive personalized spending insights and recommendations to improve your financial health.
Smart Notifications
Get alerts about new card benefits, expiring points, and special reward opportunities.
Transform Your Credit Card Experience with capitalX
Watch how our AI-powered app helps you digitize cards, track rewards, and make smarter financial decisions with real-time recommendations.
Powered by Advanced Technology
Our cutting-edge tech stack delivers intelligent card management and real-time optimization
AI & Machine Learning
Fine-tuned Gemma-27B model on Modal Labs for intelligent card selection and Google Cloud Vision for card recognition
Secure Infrastructure
Supabase authentication and storage combined with Knot TransactionLink for secure card management
Mobile First
Built with React Native & Expo for a seamless cross-platform experience
Smart Analytics
Real-time transaction analysis and reward optimization powered by Knot API
Card Management
Instant card digitization and benefit tracking with Google Cloud Vision
Real-time Processing
Flask backend with Gemini 1.5 for instant recommendations and Perplexity API for smart product search
Not Just Another Card Manager
capitalX combines advanced AI, secure infrastructure, and real-time processing to deliver a next-generation financial management experience.
Learn MoreWhat Our Users Say
Join thousands of satisfied users who are maximizing their credit card rewards
capitalX has transformed how I use my credit cards. I earned enough points for a free flight in just 3 months by using the right card for each purchase!
Aarush
ML Engineer
The AI recommendations are spot on. I've maximized my cashback on everyday purchases without having to think about which card to use. Highly recommend!
Alan
Frontend Developer
As someone juggling business and personal expenses, capitalX has been a game-changer. The app helps me optimize rewards across all my cards effortlessly.
Lucas
Backend Developer
Ready to maximize your rewards?
Join over 50,000 users who are saving more with capitalX
Ready to Optimize Your Card Benefits?
Join thousands of users who are maximizing their rewards with our intelligent card management platform. Seamlessly track APR, credit limits, and unlock the full potential of your credit cards.
What You'll Get
- Intelligent card recommendations for every purchase
- Real-time reward tracking and optimization
- Secure card digitization and storage
- Unified dashboard for all your cards