We’ve been clearing out the garage, and I ended up with a pile of stuff that was too good for the tip but not worth much money. Old pavers, a pair of garden gates, a pallet, some leftover tiles, an old cabinet and the pot from a slow cooker that died.
Listing six things on Facebook Marketplace one at a time is a pain. So this time I got Claude to do it for me using its Chrome browser plugin, and I checked everything before it went live.
What do you need?
- An AI that can control a web browser. I used Claude with the Claude in Chrome extension. At the time of writing, ChatGPT and Perplexity also have browser agents that can do similar things.
- A folder on your computer that the AI can read.
- Facebook logged in on that browser. The AI uses your existing login, so you never hand over your password.
Step 1: Photos and a page of notes
Take a photo or two of each item and put them all in one folder. Don’t bother renaming or sorting them.
Then measure everything, write the dimensions on a notepad and take a photo of the page. This is the trick that saves the most time. The AI reads handwriting pretty well and matches each measurement to the right item on its own. If something has a label, like a box of tiles, photograph that too. Claude pulled the brand, tile size and square metres straight off the box.
Step 2: One prompt
This is all I needed:
Add these items to Facebook Marketplace in my Chrome browser. They’re all separate items. Everything is free except the gates, which are $200 ONO. Put “Free” at the start of the title for the free items. The photos are in the FB marketplace folder, and one photo has my handwritten notes with the dimensions. Pickup is from [my suburb]. Before posting anything, give me the listings as an HTML page so I can edit the text.
The last line is the important one. Claude made a simple web page with an editable box for each listing (title, price, category, condition and description) and a “Copy all” button at the bottom. I tweaked a few words, clicked the button, pasted it back into the chat and said “make the listings live”.
Step 3: Watch it post
Claude then opened the Marketplace listing page for each item, uploaded the photos, filled in the details, set the location and clicked Publish. It did all six and finished on my Selling page so I could check them. Each one showed “This listing is being reviewed”, which is normal and clears in a few minutes.
What to watch out for
The AI will guess. It called the gates “galvanised”, and to be honest I don’t know if they’re galvanised or wrought iron. Read every description before you approve it.
Facebook’s categories and condition options are fixed, so the AI picks the closest match when its suggestion doesn’t exist. It told me when it did this.
The location defaults to whatever is on your Facebook profile, so tell it which suburb to use.
Is it worth it?
For one item, probably not. For six, yes. The listings were also better than what I’d have written, with proper dimensions and the pickup suburb in every one.
A couple of tips. Always ask to see the copy before anything is posted, and stay nearby while it runs because it’s your account. Don’t use it to spam either. A handful of genuine listings is fine, but Facebook isn’t a fan of automated posting.
What do you reckon, would you trust an AI to post your listings? Let us know.
