HELLO, I'M YOURunderling

Your eBay store
just hired someone.

Send one photo. Underling finds the item, checks today's eBay prices, writes the listing and posts it to your own eBay account. Then it runs the store the way you'd text an employee to.

Start free — your first listing is on usNo subscription, no card to start. See how it works ↓

One photo in. Listed on eBay. Real footage, sped up.

45 seconds: a real item, listed from one photo.

What it does

1
Lists.Send a photo. It identifies the item, picks the category, fills in eBay's required details, and writes the title and description the way you would — not the "majesty of marine life" voice.
2
Prices against eBay right now.Ask what something's worth and it checks what the same thing is listed for today, cheapest first with shipping, and whether any auctions are running. Then it reminds you to take your own look before you commit.
3
Runs the store."Drop the price on the jacket to $35." "Turn on offers for everything, decline anything under 70%." "Did anything sell this week?" "Promote the lamp at 5%." "What did that buyer ask?" It does it, and asks first whenever it spends your money or talks to a customer.
4
Remembers.Tell it once how you ship, what "good condition" means to you, where your price floor is. Every correction becomes a rule it follows from then on. It's your employee, not everyone's.

Starts locked. Earns your trust.

Every listing it makes lands in your own eBay account, on hold. You open it on eBay's page, fix anything, and it goes live only when you say so. After your first approved listing it can post on its own up to $10; after your second, $20; after your third, whatever you set. Anything above your limit still waits for you. Nothing posts behind your back — no forms in our app, ever.

What it costs

Prepaid. You add a balance, it does the work. No subscription, nothing recurring, nothing that keeps charging while you're not selling.

Start free. Say hello before you pay anything. Connect your eBay account and your first listing is on us. Your first top-up gets $5 extra.

$25
Try it out
$50
A month for most part-time sellers
$100
Volume sellers · +$10 bonus
$250
Full-time sellers · +$40 bonus

Your balance is a simple gauge in the app — you can always see how much is left, and it will tell you before starting anything that would use a lot of it.

Honest about the beta

We're small and careful. Pricing comes from what's listed on eBay right now, and it shows you what it found — then reminds you to take your own look before you commit. Rare, serialized or high-value items deserve your own eyes, and it'll say so. If something breaks, tell us: hello@underling.app or text (619) 265-6436.

You're always talking to an AI assistant, never a person, and it says so at the start of every session. It works only through eBay's official developer program, never by automating eBay's website.