About Seller Auto Reply

Seller Auto Reply is an independent AI auto-reply assistant for Facebook Marketplace sellers — what it does, who runs it, and how to reach us.

What we build

Seller Auto Reply (formerly FB Auto Reply AI) is a small, independently operated software product that answers Facebook Marketplace buyer messages for the people who sell on it. Sellers install a browser extension for Chrome or Firefox, or the desktop app, connect it to their account with a Unique Key, and write the reply instructions and listing details they want the assistant to use. While their Marketplace messages page is open and the extension is enabled, new buyer conversations get an immediate, on-brand answer instead of sitting unread.

The most common message a Marketplace seller receives is "Is this still available?". Answering it within seconds is the difference between a sale and a buyer who has already moved on to the next listing. That single job is what the product was built around, and everything else — listing context, follow-up messages, lead capture, CRM delivery — grew out of it.

Who it is for

  • Independent sellers and resellers moving steady volume who cannot watch an inbox all day.
  • Car dealerships answering vehicle inquiries with the inventory details they choose to publish.
  • Real estate agents and property managers handling rental and listing questions.
  • Furniture, electronics, and small-business sellers running many listings at once.

How we work

We are an independent third party. Seller Auto Reply is not affiliated with, endorsed by, sponsored by, authorized by, or operated by Meta Platforms, Inc. Facebook and Marketplace are trademarks of Meta Platforms, Inc. The assistant acts inside the seller's own browser session, on the seller's own conversations, using context the seller supplies.

A few commitments that shape the product:

  • You configure the replies. The assistant uses the tone, business context, listing details, and instructions you set. You can rehearse them in the Playground before enabling them on real conversations.
  • Your data is used to run the service, not to sell you. We do not sell personal information and we do not use it for advertising. See the Privacy Policy for the full account.
  • Lead routing is opt-in. Captured lead details are only forwarded to the email, webhook, or CRM destinations you configure.
  • Support is from people who built it. Every plan includes support, with priority options on higher tiers.

Reach us

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