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Buyer AI vs Seller AI

2026.08 – 2026.09

"Haggling is such a hassle!" A marketplace app where the buyer's and seller's AIs negotiate for you

Haggling on a marketplace has real hurdles: writing the message is a chore, you cannot tell how far a seller will bend, and you just want an answer quickly. This mock app hands the whole exchange to an AI agent on each side.

You set your target price and your agent's personality, then send it off; it trades offers with the seller's agent on the spot and drops a notification once they agree. The point is that you stop worrying about tone — and can negotiate with several sellers at the same time.

Stack

TypeScriptNext.jsReact

Awards

  • Excellence AwardMercari AI Agent Hackathon