For online crosslisters
One item, every marketplace, zero double sales
Crosslisting is only worth it if delisting is automatic. SECND publishes from one draft to every marketplace you sell on, and takes the others down within seconds of a sale.
What breaks first in online crosslisters
Retyping the same listing six times
Each marketplace wants its own fields, its own categories, its own character limits. The item is the same; the labour is multiplied.
Manual delisting is a losing game
You cannot watch six apps. Miss one and you are cancelling an order and taking a hit to your seller metrics.
Extension-based tools tie you to one computer
If listing only happens when a browser tab is open on your desktop, you are the bottleneck and the machine is the constraint.
How it runs on SECND
The same five steps, every item, whether it sells on the floor or on a marketplace.
- 1
Draft once from photos
AI writes title, description and attributes in your voice, learned from your corrections.
- 2
Map to each marketplace
Categories, item specifics, sizes and condition fields are filled per marketplace from the single draft.
- 3
Publish server-side
Listings go out from SECND's servers, so you can close the laptop and it still happens.
- 4
Sell on any channel
The first sale wins. Everything else comes down automatically.
- 5
Relist and reprice on schedule
Keep listings fresh with scheduled refreshes and price rules instead of manual bumping.
What you get
Server-side publishing
No desktop app and no browser tab that has to stay open for listings to go out.
Automatic delisting
A sale anywhere pulls the item down everywhere within seconds.
AI that learns your voice
Corrections teach the model your phrasing, so drafts get closer to publishable over time.
Bulk edit and bulk relist
Change price, category or description across hundreds of listings in one pass.
Mobile listing
Source, photograph and list from your phone while you are still at the estate sale.
Offers and messages in one inbox
Handle marketplace offers without living inside six separate apps.
Online Crosslisters: frequently asked questions
Which marketplaces can I crosslist to?
eBay, Etsy, Depop, Poshmark, Grailed, Vinted, Shopify, Square and your own SECND storefront, with more added over time. You can see the current list and connect them from the integrations screen.
Do I need a browser extension?
Only for the marketplaces that have no seller API and require a browser session. Everything with an API publishes server-side, which is why listings continue after you close your laptop.
How fast is auto-delisting?
Sales are detected and delisting is queued within seconds. That speed is what makes crosslisting to six places safe rather than reckless.
Is there a free plan?
Yes. The free plan includes crosslisting, sale detection and auto-delisting, with a monthly allowance of AI-generated listings. Paid plans raise the AI allowance and unlock team features.
Run your online crosslister on one system
Start on the free plan, connect a marketplace, and see your first item go live. No card required.