Let Muse Sell Your Stuff
Muse is Meta's AI app. Open it, add your photo (or photos), then paste a prompt. Muse looks on Facebook Marketplace at what people are asking for the same thing, suggests a price and writes the description. Both prompts end with "Don't post anything or message anyone yet." Keep that line, so you read everything before it goes out.
Price it and write it
For: one thing you want to sell, like a kid's old bike.
Prompt 1 · One itemHere's a photo of [the thing you're selling, for example: my kid's old bike]. Can you look on Facebook Marketplace at what people are selling similar ones for, then suggest a price and write my listing description? Don't post anything or message anyone yet.
A suggested price based on similar listings near you, and a listing title and description ready for you to read.
Clear out a closet at once
For: a pile of things. Add one photo per item, all in the same message.
Prompt 2 · A whole closetThese are photos of things I want to sell, one photo per item. For each item, look on Facebook Marketplace at what people are selling the same thing for, then suggest a price and write a listing description. Give me the list of items with a price and a description each. Don't post anything or message anyone yet.
Before you post: answer Muse's questions, read the whole listing, and write down the lowest price you'll take.
A price, title and description for every photo, plus the similar listings behind each price. Muse also asks for what a photo can't show, like a coat's size, a monitor's model, or whether something still works.
How to sell safely on Marketplace
Six rules. Read them before you post.
- Read every message before it goes out
- Nothing goes to a buyer that you haven't seen.
- Don't let Muse accept offers or set pickups
- Those are yours to say yes to.
- Set your own lowest price
- before anyone writes to you, so nobody talks you below it.
- Never put your home address in Muse or in a chat
- Reply 4 below handles "where do I come?"
- Meet in a public, well-lit place
- Many police stations have an exchange zone for this.
- Never share a verification code a buyer asks for, and never accept an overpayment
- Take cash or a payment you trust.
- The Next Web: the Muse Marketplace report (opens in a new tab)
- FTC: verification code scams (opens in a new tab)
- FTC: selling stuff online (opens in a new tab)
- Keeper Security: buying and selling safely on Marketplace (opens in a new tab)
Why rules 1, 2 and 4: in September 2026, The Next Web reported that Matt Robb let Muse handle his Marketplace listings for a day while selling a keyboard. He said it agreed to a lowball price and told buyers his address, and its auto-reply told one buyer "Yep I'm here!" when he wasn't. According to the report, Meta said Muse checks with users before sensitive actions and is looking into it.
Is this still available?
Fill in the brackets, read it, and send it yourself.
Reply 1Yes, it's still available. When works for you to meet?
A lowball offer
Fill in the brackets, read it, and send it yourself.
Reply 2Thanks for the offer. I can't go that low. The lowest I'll take is [your lowest price]. Let me know if that works.
Can you hold it for me?
Fill in the brackets, read it, and send it yourself.
Reply 3I can hold it until [day and time]. If I don't hear from you by then, I'll offer it to the next person.
Where to meet
Fill in the brackets, read it, and send it yourself.
Reply 4I can meet at [a public place, for example: the parking lot at the grocery store on Main Street] on [day] around [time]. I don't give out my home address.
A buyer asks for a code, or wants to pay a strange way
Fill in the brackets, read it, and send it yourself.
Reply 5I don't share verification codes and I don't take overpayments. Cash when we meet in person is fine. If that doesn't work for you, no problem.
One thing to sell? Start with prompt 1. A closet full? Start with prompt 2. A buyer just wrote? Use the five replies, and read rule 1 first.
If you get stuck
Will Muse post the listing or message buyers on its own?
Not with these prompts. Both end with "Don't post anything or message anyone yet," so you read the listing and post it yourself.
How does Muse pick a price?
It looks on Facebook Marketplace at what people are asking for the same thing nearby, then suggests a price. You still pick the lowest price you'll take.
Is it safe to let Muse talk to buyers?
Read every message before it goes out, and don't let Muse accept offers or set pickups. One user said Muse agreed to a lowball price and told buyers his address.
Keep going when you’re ready.
Pick another guide for the next problem you’re working on.