Reply Copilot
The category, defined for marketplace sellers

An AI customer service agent for eBay and Amazon sellers.

An AI agent reads the buyer's message, the listing, the order, and your policies, then produces the reply. The question that matters on a marketplace is not whether AI can write it. It is who presses Send. Here is the honest map of the category, and where we sit in it.

See it working on eBayCopilot vs agent, compared

The autonomy ladder.

Marketplace messages carry account risk that generic support tickets do not: feedback, defect rates, case outcomes. So autonomy is a ladder you climb, not a switch you flip.

Level 1 — Copilot (shipping today)

AI drafts every reply with the order context filled in; a human reviews and sends. Speed of an agent, judgment of a person. This is Reply Copilot on eBay right now.

Level 2 — Supervised autonomy (the roadmap)

Routine, low-risk messages (tracking status, listing facts) get answered automatically within rules you set; everything touching money, returns, or feedback still waits for a human. You dial autonomy up per message type as trust is earned.

Level 3 — Full agent (when it is honest to sell it)

The agent handles the inbox end to end and escalates exceptions. The industry is racing here; on marketplaces, where every message carries account risk, getting Level 2 right first is the difference between an agent and a liability.

By marketplace.

AI customer service agent for eBay — live today

Reply Copilot works inside eBay Seller Hub messages: one click drafts the reply using the live listing, the linked order, shipping and tracking status, the full conversation (including questions the seller missed earlier in the thread), and your shop's knowledge base, written in a voice learned from your team's real edits. A human approves every send.

  • Order and tracking context read automatically
  • Voice learned from every edit
  • Team-wide rules you approve
  • Nothing sends without a human
Reply Copilot for eBay

AI customer service agent for Amazon — in development

The same loop, inside Seller Central's Buyer-Seller Messages, built for the 24-hour response window. No SP-API approval needed. Join the waitlist to be first in line.

Etsy and TikTok Shop — next

Waitlists are open for Etsy and TikTok Shop. One marketplace at a time, each one deeply right before the next.

The category, answered.

What is an AI customer service agent for marketplace sellers?
Software that reads a buyer's message plus the surrounding context (the listing, the order, shipping status, your policies) and produces the reply. A copilot drafts the reply for a human to approve; a full agent sends it autonomously. For marketplace sellers the distinction matters more than elsewhere, because every sent message carries account risk: feedback, defect rates, and case outcomes.
Is there an AI customer service agent for eBay?
Yes. Reply Copilot works inside eBay Seller Hub today: it drafts every buyer reply using the live listing, order, and tracking data, in the store's learned voice, and a human approves each send. It is a copilot by deliberate design, with autonomy planned as trust is earned per message type.
Should AI answer marketplace buyers without human review?
For routine messages (tracking status, item specifics already in the listing), increasingly yes. For refunds, returns, feedback disputes, and policy exceptions, not yet: those messages move money and account metrics, and one bad autonomous reply can cost more than a thousand fast ones save. The honest architecture is graduated autonomy, not all-or-nothing.
How is this different from Sierra, Decagon, or Intercom Fin?
Those are enterprise AI agents built for companies that own their support channel (their website, their app). Marketplace sellers work inside eBay's or Amazon's inbox, under marketplace policies and metrics, with order context living in Seller Hub. Reply Copilot is built for exactly that environment; enterprise agents are not.
What about Amazon, Etsy, and TikTok Shop?
Amazon Buyer-Seller Messages support is in active development (waitlist open), with Etsy and TikTok Shop behind it. The same copilot loop applies: drafts grounded in order context, human approval, voice learned from your edits.