To connect ChatGPT to 3Dsellers, add 3Dsellers to ChatGPT as a new app with the server URL https://api.3dsellers.com/mcp, choose OAuth, sign in with your 3Dsellers account and click Accept. Then pick 3Dsellers from the + menu in any chat. It takes about two minutes, with no token and no code. Once connected, ChatGPT can create and publish listings, update inventory and prices, and find and tag orders on every channel connected to 3Dsellers: eBay, Amazon, Walmart, Etsy, Shopify and more.
💡 There is no 3Dsellers app in the ChatGPT app directory yet. You add it yourself with the server URL below, and it works the same way as a directory app once it is connected.
In this article:
What you need
A 3Dsellers account (the free trial works).
A ChatGPT plan that lets you add apps (connectors). OpenAI's screens and plan names change, so if your settings look different from the steps below, check OpenAI's help page for your plan.
No token. ChatGPT connects with a sign-in, so there is nothing to copy from the 3Dsellers API/MCP page.
How do I add 3Dsellers to ChatGPT?
In ChatGPT, open your settings and add a new app (OpenAI also calls these connectors).
Give it a name, for example 3Dsellers.
Paste the server URL: https://api.3dsellers.com/mcp
Choose OAuth as the sign-in method and save.
When ChatGPT sends you to 3Dsellers, sign in with your 3Dsellers account and click Accept.
How do I use 3Dsellers in a ChatGPT chat?
Start a new chat.
Click the + button and pick 3Dsellers.
Ask: "What 3Dsellers tools do you have access to?" ChatGPT lists the tools and explains them.
Before ChatGPT runs a tool that changes something in your 3Dsellers account, it shows what it plans to do and waits for your approval. Reading your data needs no approval.
What can I ask ChatGPT once it is connected?
Start by asking ChatGPT 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?"
"Write and publish an eBay listing for a Lego Star Wars Millennium Falcon 75192, sealed, $650. Show me the draft first."
"Which of my eBay listings are missing item specifics?"
"Raise the price of every product in my Winter segment by 10%. Show me the list before you change anything."
"Which products have fewer than 5 units left?"
Tip: add "show me first, don't change anything yet" to a request. ChatGPT then describes what it plans to change in 3Dsellers and waits for your approval before it runs the tool.
Frequently asked questions
Does connecting ChatGPT 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 ChatGPT 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 ChatGPT access to my 3Dsellers account?
Yes - ChatGPT never sees your eBay, Amazon or other marketplace passwords. It connects to 3Dsellers with a sign-in (OAuth), 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 ChatGPT entry in Issued tokens and click Revoke. ChatGPT loses access on its next request.
Does ChatGPT 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 ChatGPT to "list my sellers" and include the seller ID in a request to scope it to one account.
Is there a 3Dsellers app in the ChatGPT app directory?
Not yet - you add 3Dsellers to ChatGPT yourself as a custom app with the server URL https://api.3dsellers.com/mcp. It takes two minutes and works the same way as a directory app once it is connected.
ChatGPT cannot connect, or the 3Dsellers app does not appear. What do I check?
Check that the URL is exactly https://api.3dsellers.com/mcp with no trailing slash, that you chose OAuth (not an API key) and that you clicked Accept on the 3Dsellers sign-in screen. In a chat, the app has to be picked from the + menu. If it still fails, open Settings > Profile > API / MCP in 3Dsellers and check the Requests tab for an error, or ask the 3Dsellers team through your usual support channel.