To connect Grok to 3Dsellers, add the 3Dsellers MCP server as a custom connector at grok.com/connectors with the server URL https://api.3dsellers.com/mcp, sign in with your 3Dsellers account and turn the connector on in a chat. It takes about two minutes, with no token and no code. Once connected, Grok can search and update your catalog, publish listings to eBay, Amazon, Walmart, Etsy and Shopify, fix item specifics in bulk, run CSV imports and check orders, all through your own 3Dsellers account.
💡 3Dsellers has submitted an official connector to the Grok connector catalog and is waiting for xAI to approve it. Until it is listed, add the server yourself as a custom connector with the steps below. It works the same way once connected.
In this article:
What you need
A 3Dsellers account (the free trial works).
A Grok account at grok.com. xAI's documentation says connectors are available to all Grok users; on Grok Business and Enterprise an admin provisions the connector first (see below).
No token. Grok connects with a sign-in, so there is nothing to copy from the 3Dsellers API/MCP page.
How do I add 3Dsellers to Grok?
Open grok.com/connectors.
Click New Connector, then choose Custom.
Paste the server URL and save: https://api.3dsellers.com/mcp
When Grok asks you to sign in, log in with your 3Dsellers account and approve access.
Start a chat, turn the 3Dsellers connector on and ask: "What 3Dsellers tools do you have?"
Grok shows what it plans to change in 3Dsellers and waits for your approval before it runs a tool that writes data. Reading your data needs no approval.
Grok Business and Enterprise: the admin step
On Grok Business and Enterprise, a team admin first provisions the 3Dsellers connector in the xAI cloud console. After that, team members add and use it as in the steps above. Check xAI's connector documentation for the current admin flow.
What can I ask Grok once it is connected?
Start by asking Grok what it can do: "What 3Dsellers tools do you have access to?" It reads the tool list and explains each one in plain language. Then try requests like these:
"What sold today across all my channels?"
"Create an eBay listing for a used Dyson V11 vacuum, works perfectly, $220, with my standard shipping policy. Show me the draft first."
"Which of my listings have errors, and what do the errors say?"
"Which products have fewer than 5 units left?"
"Publish SKUs ABC-100, ABC-101 and ABC-102 from eBay to my Amazon account."
Tip: add "show me first, don't change anything yet" to a request. Grok then describes what it plans to change in 3Dsellers and waits for your approval before it runs the tool.
Frequently asked questions
Does connecting Grok to 3Dsellers cost extra?
No - the MCP connection is included in every 3Dsellers plan, including the free trial. Reading your data (orders, listings, inventory, reports) is free. Actions that Grok runs in your account, such as publishing a listing or updating prices, use AI actions, which you buy in advance in the AI Lite, AI Pro or AI Elite package.
Is it safe to give Grok access to my 3Dsellers account?
Yes - Grok never sees your eBay, Amazon or other marketplace passwords. It connects to 3Dsellers with a sign-in, can only use the tools the 3Dsellers MCP server exposes, and asks for your approval before it runs any tool that changes data. You can disconnect it at any time: in 3Dsellers open Settings > Profile > API / MCP (app.3dsellers.com/api-mcp), find the Grok entry in Issued tokens and click Revoke. Grok loses access on its next request.
Does Grok work with all my channels?
Yes - one connection covers every channel connected to your 3Dsellers account: eBay, Amazon, Walmart, Etsy, Shopify, WooCommerce, BigCommerce, TikTok Shop and any other channel you have added. If you have more than one seller account, ask Grok to "list my sellers" and include the seller ID in a request to scope it to one account.
Is there an official 3Dsellers connector for Grok?
Not yet - 3Dsellers has submitted a connector to the Grok connector catalog and is waiting for xAI to approve it. Until it appears there, add the 3Dsellers MCP server as a custom connector with the steps above. The tools are the same.
Grok cannot connect to 3Dsellers. What do I check?
Check that the URL is exactly https://api.3dsellers.com/mcp with no trailing slash, that you completed the 3Dsellers sign-in, and that the connector is switched on in the chat. On Business or Enterprise, ask your admin whether the connector has been provisioned. If it still fails, open Settings > Profile > API / MCP in 3Dsellers and check the Tokens tab (the Grok token should be Active) and the Requests tab for an error message.