A growing collection of SaaS products powered by Claude AI, Supabase, and automation — built to work, not just to demo.
AI-powered Mercari Japan listings for Portuguese speakers.
Converts product photos and Portuguese descriptions into optimized Japanese Mercari listings automatically. Built for the Brazilian community living in Japan. Freemium model with Stripe integration.
A practical guide to selling on Mercari Japan without the headaches.
Step-by-step digital handbook for Brazilians starting to sell on Mercari in Japan — account setup, pricing, photos, shipping, and customer service. Kept current as the rules change.
Bridging US products to buyers in Japan.
A buying-intermediary platform: customers in Japan request US products and the system quotes shipping, import duties, and delivery. Focused on collectibles, electronics, and fashion.
A trading journal with AI-driven performance analysis.
Track trades, visualize equity curves, calculate risk metrics, and get AI-generated insights — in multiple currencies and languages.
An AI content agent that learns your voice.
Built for Portuguese-speaking creators and streamers. Niko Mind automates content ideation, SEO optimization, and multi-platform publishing — personalized to your style.
Five-workflow SEO engine for creators and resellers.
Autonomous n8n pipeline covering trend discovery, competitor surveillance, content optimization, performance auditing, and Mercari listing SEO — all in one system.
I'm a digital entrepreneur based in Gunma, Japan. I build AI-powered tools that help real people — primarily the Brazilian community in Japan — work smarter, earn more, and create freely.
Every product in this lab is designed to solve a problem I've seen firsthand, built on modern AI infrastructure, and shipped with a focus on simplicity and results.
I'm open to collaborations, pilot programs, and feedback.