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ai ebay listing generator

AI eBay listing generator that writes every field

SEO-packed titles, complete item specifics, suggested pricing — generated from a photo.

Start free — 50 listings/mo View demo
The problem

Writing eBay listings is the cognitive tax on running a reseller business.

Every eBay listing has the same anatomy: an 80-character title packed with search-relevant terms, a category selected from eBay's deep taxonomy, item specifics that vary by category, a condition designation, a description, and a price set against the comp tape. Doing this work yourself for one listing is annoying. Doing it for 50 listings is a full day. Doing it for the volume needed to make eBay a serious income source is a full-time job — and the job is almost entirely typing rather than judgment.

The job is also pattern-matching that an AI can do faster than a human. The title is a templating exercise. The category is a classification problem. The item specifics are a lookup against the eBay taxonomy. The condition is an image-classification problem. The price is a comp-set query. None of this requires human creativity — it requires the patience to type the same patterns over and over.

HumCity's AI listing generator does the typing. You drop a photo; the generator produces a complete listing. The 12-second-per-listing cadence comes from removing the typing entirely, not from making the form prettier.

What you get

Capabilities built for this exact workflow.

  • Title generation under eBay's 80-character limit

    Titles are generated to maximize search relevance within the 80-character cap. The generator orders terms by buyer search intent (brand first, then product type, then identifying details, then condition) and avoids spam patterns that hurt placement. Category-specific title conventions are respected — apparel titles look like apparel titles, cards look like cards, electronics look like electronics.

  • Item specifics auto-populated for any eBay category

    Every eBay category has its own required and recommended item specifics. HumCity knows the current schema for every category and prefills every field it can extract from the image. Fields that can't be extracted are flagged for your review rather than left blank — eBay search placement punishes blank specifics in search placement.

  • Category detection from image content

    Category routing picks from eBay's full taxonomy (thousands of leaf categories), not a curated subset. The right leaf category is critical for both search placement and item-specifics requirements — a card listed in Trading Cards > Sports gets different specifics than the same card listed in Trading Cards > Pokémon TCG. The AI routes correctly the first time.

  • Condition suggestion with borderline flagging

    Condition (New, New with tags, New without tags, Pre-owned, Used, For parts) is suggested from the image and flagged for review on borderline calls. The condition flows into the eBay item specifics and the buyer-facing condition badge. Wrong condition is one of the most common return causes; flagging borderline calls reduces returns.

  • Pricing from recent sold comps

    After identification, the generator pulls the last 90 days of completed eBay sales for the exact product and surfaces a price range with median, low, and high. You see the comp tape behind the suggestion. For categories with strong wholesale benchmarks (collectibles, cards), wholesale comps are layered in alongside retail comps.

  • Description generation in eBay's modern responsive format

    Descriptions are generated in eBay's current responsive description format (no legacy HTML templates). The description covers product details, condition notes, and standard policy language. You can override the generated description per listing or apply a custom template across a category.

Use cases

Built for the way real resellers work.

New eBay sellers without listing experience

If you're new to eBay, knowing what to put in each field (which category, which specifics, what condition designation) is itself a learning curve. The AI handles it for you — you learn the platform by reviewing the generated listings, not by guessing at fields. New sellers commonly ship higher-quality listings than experienced manual sellers because the AI follows eBay's evolving best practices automatically.

Power sellers running serious volume

Power sellers (Top Rated, eBay Stores) need the listing throughput to feed their inventory turn. The AI generator becomes the tool you spend the most time inside — review queues, bulk publish, scheduled launches — and the time-savings compound over months of volume.

Collectibles dealers with category-specific specifics

Cards, coins, comics, and LEGO all have category-specific item specifics that are tedious to fill manually. The AI knows each category's schema and fills correctly — Trading Cards specifics, Pokémon TCG specifics, Coins specifics, Comics specifics, LEGO specifics — without you switching mental contexts.

Multi-channel sellers using eBay as one of several outlets

If you sell on eBay, Mercari, and Whatnot, the eBay listing work is one of three streams. The AI generator collapses that stream to near zero so you can focus on the channels that still need manual work today. As HumCity ships Mercari and Whatnot publishing, the same listing data carries over.

How it works

From inventory to live listings in three steps.

01

Upload images

One item or a thousand. Phone, scanner, or DSLR. Single shots or multi-angle stacks.

02

AI writes the listing

Title, specifics, category, condition, description, and pricing in seconds. Every field generated.

03

Publish

Push live to eBay with one click or queue for bulk approval and scheduled launch.

FAQ

Common questions

Which models power the AI?
HumCity routes through Lovable AI Gateway, which selects between leading vision-language models from OpenAI and Google (GPT-5 / Gemini 2.5 / 3.x families) depending on the task. We evaluate new models continuously and silently upgrade the routing — you get the best available accuracy without changing how you work.
How accurate is the AI on titles?
Titles are generated to fit eBay's 80-character limit and lead with the highest-intent search terms for the category. Most titles need no edit; a minority benefit from a small tweak. Accuracy is highest for branded products and standard categories; very obscure or unbranded items may need a manual title edit.
Does the AI handle item specifics for every category?
Yes. The generator knows the current eBay item-specifics schema for every category and fills every field it can extract from the image. Fields that can't be extracted from the image are flagged for your review — eBay search placement punishes blank required specifics, so the system makes the gaps explicit rather than hiding them.
Can it generate listings for one-of-a-kind unbranded items?
Yes, with appropriate expectations. For unbranded items, the AI extracts visible attributes (color, material, dimensions, style) and generates a generic title and description. You'll typically edit the title more for these — but the category routing, item specifics, and condition assessment are still automatic.
Does it work for non-collectibles?
Yes. Apparel, electronics, home goods, used inventory, and almost every eBay category work. Collectibles get extra category-specific intelligence (slabs, sets, varieties); non-collectibles get the same workflow with the general-purpose vision pipeline.
How does the AI know about new eBay categories or category changes?
The eBay category and item-specifics schema is synced on a regular cadence from the eBay API. Category changes propagate to the generator automatically; you don't need to do anything to stay current.
Can I customize the title format?
Yes. You can save custom title templates per category — for example, a specific order of brand/model/size for apparel, or a specific cert-number-in-title format for graded cards. The AI fills the template variables from the image extraction.
Does the generator support listing in languages other than English?
Today, listings are generated in English for eBay US, UK, AU, and CA. Localized generation for eBay DE, FR, IT, ES is on the roadmap.
Can I review and approve listings before they go live?
Yes — the default workflow is review-then-publish. Every field is editable inline before publish, and the keyboard-first queue makes review fast. You can also opt into one-click publish that ships directly to eBay if you trust the generator on a category.
Is there a free tier?
Yes. Every account gets 50 free listings or revisions per month with no credit card required. Most resellers can fully evaluate the AI workflow, image recognition, and bulk upload before deciding to upgrade. Paid plans start at $10/month for 500 listings and scale with volume.
Does HumCity use the official eBay API?
Yes. HumCity is an authorized eBay API partner and uses the official Trading and Inventory APIs. Every listing published from HumCity appears in eBay Seller Hub normally, counts toward your eBay reputation, and respects your existing business policies for shipping, returns, and payments.
How big can a bulk batch be?
Pile Mode™ supports up to 500 images per batch on every paid plan. Most sellers run batches of 30–100 items in a single pass — a full sourcing haul or a day's intake. The system parallelizes AI inference across the batch so a 100-item upload is typically ready for review in under two minutes.
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