MarketListing

About

MarketListing turns a 3D print into a finished Etsy listing in about twominutes — photos in, SEO-optimised listing out, published straight to yourshop through the official Etsy API.WHAT MAKES IT DIFFERENTMost listing tools ask you to write a description first. This one doesn't.You give it a name and your photos, and GPT-4o *looks at the images* tounderstand what the object is — material, finish, colours, likely buyers —then writes the title, the description and 13 SEO tags built for how peopleactually search on Etsy.The second thing no other Etsy tool does: pricing. Enter grams of filamentand hours of printing (straight from your slicer) and it calculates your realcost, applies your margin, and rounds to a psychological price. It speaks thelanguage of people who print, not of generic e-commerce.WHAT IT DOES• Guided 5-step flow: name, photos, price, listing, publish• AI listing generation from photos (vision) — title, description, 13 tags, materials, occasion, style, keywords, SEO advice• Filament palette: set the colours you actually stock and every generated listing offers only those — no more AI inventing colours you can't print• Model catalogue with automatic pricing from grams + hours + your rates• Publishes to Etsy: draft or live, images uploaded in your chosen order• Orders page: live from Etsy, with revenue stats and per-country breakdown (cancelled and refunded orders excluded automatically)• Shipping manager: see every destination's cost and apply a zone-based price list in one click• Vacation mode: pick your return date and processing times update across all shipping profiles, restored with one click when you're back• Scheduled publishing, full activity log, dark mode, installable on iPhone/Android as a home-screen appTECHNext.js 15 (App Router) · TypeScript, strict · Tailwind CSS with a token-baseddesign system · Supabase (auth, Postgres with row-level security, storage) ·OpenAI GPT-4o (vision + JSON schema output) · Etsy Open API v3 with OAuth2 PKCE· deploys to Netlify, Vercel or Render.Credentials are encrypted at rest with AES-256-GCM and never returned to thebrowser. Rate limiting per operation, sanitised logs, automatic token refresh.Roughly 120 files, fully typed, commented in a way a new owner can follow.STATUSRunning in production on a real Etsy shop since August 2026. Listings createdand published through it are live and selling.WHAT THE BUYER GETSFull source code, database schema, deployment configuration for three hosts,and a setup guide.WHAT THE BUYER PROVIDESTheir own OpenAI API key, their own Supabase project (free tier is enough),and their own registered Etsy app — Etsy requires each seller to register andget approved for their own API access, so this cannot be transferred.Not affiliated with or endorsed by Etsy, Inc.