3Dsellers MCP for AI Assistants

Selling on eBay, Etsy, and Amazon at once, and logging into three dashboards every morning? 3Dsellers says one AI assistant can now work across all of them. Its official press release explains how, as of Oct 28, 2026.

What 3Dsellers lists:

• One connection, many stores: eBay, Amazon, Walmart, Etsy, and Mirakl marketplaces; Shopify, WooCommerce, and BigCommerce stores; and TikTok, Facebook, and Instagram.
• Works with your assistant: Claude (in its connector directory), plus ChatGPT, Grok, Cursor, and VS Code as a custom connector.
• Real work, not just questions: fix listing errors, reprice a catalog, find unshipped orders, import a supplier file, and draft replies to buyers.
• Scale: 3Dsellers says the assistant gets more than 120 tools and nearly 100 bulk operations.
• No code: sign in with your 3Dsellers account. You don't need a developer account at eBay, Amazon, or any other marketplace.

Control, per 3Dsellers:

• It works on the seller side, through each marketplace's official seller APIs, with your authorization.
• Sign-in uses OAuth with separate permission scopes.
• Every request appears in a request log, and you can revoke access anytime.
• Bulk changes run as tracked jobs you can follow and check.

Who it's for: small online sellers who list the same products on several marketplaces and want one place to manage them.

Picture this: you sell vintage cameras on eBay and Etsy. Each morning you ask Claude, "What didn't ship yesterday, and which listings have errors?" It returns two late orders and three listings missing item specifics. You fix the listings, then ask it to raise prices 5% on one camera brand, and you check the job in the request log. (Our illustration of what 3Dsellers describes.)

Questions to ask before you connect:

• Which stores matter most? Start with one marketplace.
• What changes need your approval? Bulk price changes are a good one to check first.
• How many changes will you make each month? Changes are billed as AI actions.

Try it this week: 1. Start with read-only questions, like unshipped orders and listing errors. 3Dsellers says reading data is free. 2. Make one small change and check it in the request log. 3. Try a bulk change on a small group of listings before a big one.

More help in our product descriptions playbook and our multichannel listing cleanup idea.