I built an AI skill marketplace in one day with Claude Code — here's the stack

The Problem MCP has 97M downloads but there's no marketplace for AI agent skills. Developers dig through GitHub repos or build from scratch. The Solution I built SkillForge — a searchable marketplace for AI agent skills and MCP servers. Live: https://skillforge-lemon.vercel.app Tech Stack (all free tier) Frontend: Next.js 16 + React 19 + Tailwind 4 Database: Supabase (PostgreSQL + Auth + RLS) Payments: Lemon Squeezy Analytics: Microsoft Clarity Deployment: Vercel Monthly cost: $0 Features 30 skills across 10 categories Works with Claude Code, Cursor, Codex, Gemini CLI, Windsurf, Aider Full-text search, category filters, sorting GitHub OAuth login Creators sell skills and keep 80% revenue One-command install: claude skill install <name> What Claude Code Built The entire project was built in a single Claude Code session: Supabase schema (7 tables, RLS policies, full-text search) All frontend pages and components Payment webhook integration SEO (dynamic sitemap, robots.txt) Terms of Servi