KeenFind is live: one search for every secondhand marketplace
By Lukas
I buy most things second hand. The hard part was never finding something good. It was that the good one was always on the site I had not opened that day.
In Belgium that means five sites: eBay, Vinted, Facebook Marketplace, 2ememain and 2dehands. The same search typed five times, the same filters set five times, and the same ad shown twice, because 2ememain and 2dehands are one site with two names.
So I built KeenFind. It is live now, and this is what it does.
One search, every marketplace
You type what you are looking for once. KeenFind sends it to every marketplace in your country at the same time and brings the results back as one list. The same ad on two sites shows up once, and you sort the whole list by price, by date or by distance from your postcode.
It works in eight countries. Each one gets eBay, Vinted and Facebook Marketplace, plus the local site people there actually use:
- Belgium: 2ememain and 2dehands
- Netherlands: Marktplaats
- France: Le Bon Coin
- Germany: Kleinanzeigen
- Spain: Wallapop
- Italy: Subito
- Portugal: OLX (no eBay here)
- United Kingdom: Gumtree
That local site is the point. Plenty of tools search eBay and Vinted. Very few reach Le Bon Coin or Kleinanzeigen, and in those countries that is where most things are for sale.
Alerts, so you can stop checking
Searching is the part you do. An alert is the part KeenFind does for you. Save a search and it keeps running in the background, day and night, across every marketplace in that country. When something new turns up that matches, you get it by email, on Telegram or as a notification in your browser.
Every new listing is read by an AI model and compared with what you asked for before it reaches you. If you are waiting for one specific road bike, you get that bike, not the helmet, the pump and the children's bike from the same brand.
What it costs
Searching is free. Without an account you get 5 searches a day, with a free account 20, and the free account comes with one alert, checked every hour.
- Plus, EUR 3.69 a month: unlimited searches, 15 alerts checked every 10 minutes, and the AI relevance check on your search results.
- Pro, EUR 19 a month: 100 alerts checked every 5 minutes. That one is for people who buy to resell.
The alerts are what I charge for, because they are what costs money to run. Every check asks the marketplaces again, and some of them are not free to reach.
What it is not
KeenFind sells nothing and has no deal with any marketplace. Every result links to the original ad, and you buy there, under that site's own rules. There are no ads on the site, it loads no trackers from other companies, and your IP address is shortened before anything is stored.
Who is behind it
Just me. I build KeenFind on my own, from Belgium. There is no company and no investor behind it.
If a marketplace you use is missing, or a search gives you something odd, write to hello@keenfind.io. I read every message.
Lukas