Complete AI Training

AI app for sales · no coding needed

Secondhand resale listing and sales coordination portal

Reduce listing and follow-up effort while keeping pricing and buyer decisions under the seller's control.

Made for: Resellers and small resale businesses listing secondhand items across marketplaces

What Secondhand resale listing and sales coordination portal looks like
Open the demo For members · a working demo with sample data

What it does for you

The problem

Manual identification, pricing, listing and follow-up across several tools slows sales and loses track of stock and buyers.

What it gives you

Seller-approved listings, price suggestions and follow-up actions

What you give it

Item photosshort videosmarketplace databuyer messages

Build your own version of Hero, Hero Stuff and more

One app with what these 4 AI tools do, yours to keep and change: Hero, Hero Stuff, SellMate AI, Resell AI.

Everything these tools do, in one app

  • AI product identification Identifies the item being sold from a photo or scan.Found in Hero, Hero Stuff, Resell AI
  • Automated price suggestions Suggests competitive prices based on market data.Found in Hero, Hero Stuff, Resell AI
  • Automatic listing creation Generates titles, prices, and descriptions for listings.Found in Hero, Hero Stuff
  • Video-based listing Creates listings from a short video without manual typing.Found in Hero, Hero Stuff
  • Quick listing Posts items for sale within seconds.Found in Hero, Hero Stuff
  • Direct marketplace posting Posts listings directly to a marketplace without filling out forms.Found in Hero Stuff
  • Sales tracking Tracks sales across platforms and shows top-selling items.Found in Resell AI
  • Listing export Exports listings and manages past sales performance.Found in Resell AI
  • Item cataloguing Tracks items and monitors their value over time.Found in Hero
  • Lead scoring Prioritizes prospects based on engagement and potential.Found in SellMate AI
  • Personalized templates Provides email and message templates that adapt to customer interactions.Found in SellMate AI
  • Analytics dashboard Shows real-time insights into sales performance.Found in SellMate AI
  • CRM integration Synchronizes data with popular CRM platforms.Found in SellMate AI
  • Task automation Automates follow-ups and reminders for consistent communication.Found in SellMate AI

How it works, step by step

  1. Identify the item from a photo or scan
  2. Suggest competitive prices from marketplace data
  3. Generate titles, prices and descriptions for listings
  4. Create listings from a short video without manual typing
  5. Post items for sale within seconds
  6. Post listings directly to a marketplace without filling out forms
  7. Track sales across platforms and show top-selling items
  8. Export listings and manage past sales performance
  9. Catalogue items and monitor their value over time
  10. Score leads by engagement and potential
  11. Provide email and message templates that adapt to customer interactions
  12. Show real-time sales performance insights
  13. Synchronize data with popular CRM platforms
  14. Automate follow-ups and reminders for consistent communication
  15. Compare the reviewed result with the recorded baseline and value assumptions
  16. Capture corrections and named-owner approval before consequential use
  17. Export a versioned seller-approved listing and follow-up record with source references and unresolved questions

Build it yourself with your AI system

Build this app yourself, no coding needed

Start with a quick version you can try in a few minutes. Like it? Then build the full app by copying and pasting our step-by-step instructions: everything is prepared for you.

Sign in to see how to build it yourself

Build a quick version to try, or get the full app pack for Secondhand resale listing and sales coordination portal with the step-by-step building instructions. You don't need any technical skills: you copy, paste and answer a few questions. Both are included in the membership.

Sign in Become a member

4 Have it built for you days to a few weeks

Rather not do it yourself, or want it fully tailored to your data, your way of working and your brand? Nexibeo builds Secondhand resale listing and sales coordination portal with you.

Have Nexibeo build it

What's in the app pack

Included in the Complete AI Training membership.

  • The building instructions your AI follows, step by step
  • The questions your AI will ask you about your business before it starts
  • A clickable demo you can open in your browser, to see how it should work
  • A detailed blueprint of the screens, the information it keeps and the checks it runs

Become a member to get the app packAlready a member? Sign in

The files, for the technically curious
  • START-HERE.mdHow to build it with your own AI (read first)3 KB
  • README.mdOverview and links3 KB
  • questions.mdQuestions to answer before you build2 KB
  • prompt-cloudflare.mdThe full build prompt, hosted on Cloudflare26 KB
  • prompt-vps.mdThe same build on your own server (Docker)26 KB
  • spec.jsonData model, API, AI pipeline, acceptance criteria13 KB
  • demo/index.htmlThe working demo on sample data196 KB

Questions

Do I need to know how to code?

No. You copy and paste the prompts on this page into ChatGPT or Claude, and the AI does the building. When it asks you something, you answer in your own words.

What does it cost?

The quick version, the app pack and the step-by-step instructions are for members: you pay the membership price, not a price per app (see the plans). Building the full app uses your own ChatGPT or Claude subscription. Putting it online is often cheap or no cost at the start, and your AI tells you before anything costs money.

How long does it take?

The quick version: about two minutes. The real app: an afternoon for a first version you can use, longer if you want every feature.

Can I change it to fit my business?

Yes. Tell your AI what to change in plain words, like “add a column for the price” or “use our logo and colours”. Or have Nexibeo build and customise it for you.

More detailsHow the AI works, safeguards and what to build first

Reduce listing and follow-up effort while keeping pricing and buyer decisions under the seller's control. For resellers and small resale businesses listing secondhand items across marketplaces, convert item photos, short videos, marketplace data and buyer messages into seller-approved listings, price suggestions and follow-up actions. The benefit is a testable hypothesis, measured through listings published per seller hour and accepted sales per listed item; do not assume that AI output alone produces business value.

Confirm the buyer's problem and scope, collect item photos, short videos, marketplace data and buyer messages, then follow this sequence: 1. Identify the item from a photo or scan. 2. Suggest competitive prices from marketplace data. 3. Generate titles, prices and descriptions for listings. 4. Create listings from a short video without manual typing. 5. Post items for sale within seconds. 6. Post listings directly to a marketplace without filling out forms. 7. Track sales across platforms and show top-selling items. 8. Export listings and manage past sales performance. 9. Catalogue items and monitor their value over time. 10. Score leads by engagement and potential. 11. Provide email and message templates that adapt to customer interactions. 12. Show real-time sales performance insights. 13. Synchronize data with popular CRM platforms. 14. Automate follow-ups and reminders for consistent communication. Resolve uncertain cases with qualified reviewers, approve seller-approved listings, price suggestions and follow-up actions, and measure listings published per seller hour and accepted sales per listed item against a documented baseline.

How the AI works

Use AI to interpret permitted inputs, suggest structured mappings and generate candidate outputs for the three stated task modules. Use deterministic code for arithmetic, schema validation, hard constraints and reproducible tests. Review source-linked explanations and uncertainty before accepting results. One fixed marketplace account and approved item categories; final pricing and buyer decisions remain with the seller. A model suggestion is never a verified fact, professional decision or authorization to act.

Safeguards

Preserve seller voice, source attribution, item accuracy and usage permissions. Sellers approve substantive changes and listing scope. One fixed marketplace account and approved item categories; final pricing and buyer decisions remain with the seller. Keep all consequential actions under authorized human control and do not fabricate missing inputs, permissions, professional judgments or market evidence.

What to build first

Pilot scope: One fixed marketplace account and approved item categories; final pricing and buyer decisions remain with the seller. Implement one approved input format, a bounded representative case set and the first two task modules: identify the item from a photo or scan; suggest competitive prices from marketplace data. Support the third module with operator review: generate titles, prices and descriptions for listings. Include source references, corrections, basic organization access, approval states, export and value measurement. Use managed operator assistance for unresolved exceptions. The cost estimate covers this narrow prototype, not unrestricted multi-tenant scale, complex production integrations, specialist certification or physical operations.

What it can connect to

Seller-owned item photos, short videos, marketplace data and buyer messages. Cloud asset storage, marketplace listing import/export and CRM destinations. Start with file exchange and validate destination specifications before promising direct posting. Start with authorized file exchange. Validate current provider access, usage rights and schema behavior before promising a connector.

The screens in detail

Primary screens: Item intake and identification, Listing and price review, Sales and buyer follow-up. Use a thumbnail gallery for items, a large central editing canvas, and a right-hand panel for price evidence, marketplace status and buyer messages. Let users compare listing versions side by side. Display draft, changes requested and approved states. Provide a buyer-facing listing preview with comments anchored to the relevant item. Make the task-specific outcome seller-approved listings, price suggestions and follow-up actions visible beside its evidence, review state and value baseline.