Case studyLuxury watcheseBayPhase 1
×Throwin' SaltThrowin' Salt

From a WhatsApp message to a live eBay listing. Without opening a single dashboard.

Throwin' Salt sells high-end watches on eBay. Until August 2026 every listing was built by hand in InkFrog, a tool that was also shutting down. ZENIA built Gaia, an AI agent that lives in the team's WhatsApp: it prepares each listing with title, specs, photos and price, enforces the house rules and publishes on eBay when the team says «publish». This is phase 1.

Client
Throwin' Salt
Sector
Luxury watch retail
Market
United States · eBay
Scope
WhatsApp AI agent, eBay publishing, computer-vision photo checks, daily batch
Status
Phase 1 in production since August 2026
Recreation of the team's WhatsApp chat with GaiaThe daily batch: Full Set watches with 8 checked photos
Phase 1 in numbers (20 August to 17 September 2026)
54luxury watches listed on eBay from the chat
23watches listed in a single day
$2Mof inventory listed, about $38,000 on average
8photos per listing, each one checked by computer vision
The challenge

Listing a $40,000 watch cannot depend on filling in forms by hand.

Every fine-watch listing needs the same things: the exact reference with its variant, the right material and size, eight photos in the house order and a price that is not off by a zero. Doing it by hand in InkFrog took hours, and a wrong spec meant deleting the listing.

On top of that, InkFrog was shutting down. Throwin' Salt needed a faster way to list, with fewer mistakes, without changing how the team already works: on WhatsApp.

  • Never a wrong reference: same variant, correct material and size.
  • No hands or wrists in the photos, and always the brand's official box on Full Set listings.
  • Never list a reference twice.
  • Nothing goes live without the team's yes.
What we built

An agent that works inside the team's WhatsApp.

Five pieces, one conversation.

01

Gaia, the WhatsApp agent

The team writes to it like a colleague: sends references or photos, asks for a price change or says «publish». Gaia answers in seconds, shows a preview of each listing and fixes it by chat. It speaks Spanish and understands voice notes.

02

From the chat to eBay, without InkFrog

Gaia builds each listing with an optimised title, full specs, condition, eight photos in the house order and a price, and publishes it on eBay. It also edits or ends live listings, from the same chat.

01ReferenceThe team sends it on WhatsApp
02SpecsVariant, material and size verified
03Photos8 photos checked by computer vision
04PriceSet by the house rules
05PreviewEverything fixed by chat
06eBayLive after the team says yes
From the reference to the live listing, in one conversation.
03

Photos checked by computer vision

Every photo goes through a vision model before it reaches the listing: no hands or wrists, no boxes that are not the brand's, and Full Set confirmed by looking at the photos themselves. The team stopped hunting mistakes by eye.

04

A daily batch ready to approve

Every morning Gaia proposes a batch of new watches, all Full Set, with the exact reference, eight photos and a calculated price, never repeating anything already listed. The team removes, corrects and publishes from the chat.

05

Control of what is listed

A record of every listing (who asked for it, when, at what price) and a private panel of everything listed, to follow the business and the accounts.

Next phase

Phase 1 solved listing. Phase 2 is about selling more.

With listing solved, the focus moves to a wider catalogue of available references, tiered pricing and taking the same agent to Instagram and Facebook.

The same pattern works for any business with a catalogue: an agent in the team's WhatsApp that turns messages into live listings, without touching a dashboard.

Deliverables
WhatsApp AI agenteBay publishingEdit and end by chatPreview of every listingComputer-vision photo checksAutomated house rulesDaily batchListing recordPrivate panelTeam manual

Is your team still listing by hand? Let an agent do it.

In 30 minutes we show you what an agent like this would look like for your catalogue, on eBay, your website or any marketplace.

Also in Spanish · All cases