3Dsellers

3Dsellers MCP Server for eBay and Ecommerce Sellers

The hosted eBay MCP server for ecommerce sellers. Connect Claude, ChatGPT, Cursor, VS Code or any MCP-compatible AI assistant to your eBay, Amazon, Walmart, Etsy, Shopify and TikTok Shop stores, and manage listings, products, inventory, orders and buyer messages from a chat. 150+ tools. Nothing to install, no code and no eBay developer account.

Server URL:

https://api.3dsellers.com/mcp

3Dsellers is a multichannel ecommerce platform for eBay sellers. It keeps one product catalog for every channel you sell on. Connect the MCP server once and your AI assistant can search and create products, publish listings to eBay and your other channels, update inventory and prices, manage orders, run bulk edits and CSV imports, and answer buyer messages, all through your own 3Dsellers account.

This repository holds the documentation and config examples. The server itself is hosted by 3Dsellers, so there is no code to run.

Contents

• Features
• Demo
• Quick start
• Connect your AI assistant
• MCP client compatibility
• What you can ask
• Channels
• Tools
• Hosted vs a local open-source server
• Security and permissions
• Manage tokens, permissions and requests
• Rate limits and pricing
• Troubleshooting
• FAQ
• Links

Features

• 150+ ecommerce tools: products, listings, item specifics, inventory, prices, orders, tracking, bulk actions, CSV imports, exports, automations, offer rules, listing templates and buyer messages.
• eBay and five more channels: eBay, Amazon, Walmart, Etsy, Shopify and TikTok Shop from one product catalog. Publish a product from one channel to another in one request.
• Hosted, nothing to install: no Node.js, no Docker, no eBay developer account and no marketplace API keys. 3Dsellers keeps the server up to date when marketplace APIs change.
• Works with any AI assistant: Claude, ChatGPT, Grok, Claude Code, Cursor, VS Code, Cline, Gemini CLI, Kiro, Windsurf and any client that supports remote MCP servers.
• Sign in with OAuth: chat apps connect with your 3Dsellers login, with no token to copy. Developer tools can use a bearer token.
• You stay in control: scoped tokens, approval before any tool that changes data, a log of every call, and one-click revoke.
• Rate limits handled for you: clear limits shared by REST and MCP, with Retry-After headers and a live usage view.
• REST API included: the same account and token work with the 3Dsellers REST API.
• Support included: the 3Dsellers support team helps with setup on every plan.

Demo

Watch 3Dsellers MCP in under eight minutes: connect Claude, ask about orders, and create and publish a listing.

Quick start

1. Create a 3Dsellers account at 3dsellers.com (free 7-day trial, no credit card) and connect your selling accounts.
2. Add the server URL https://api.3dsellers.com/mcp to your AI assistant.
3. Sign in with your 3Dsellers account (OAuth), or paste a token for developer tools.
4. Ask: "What 3Dsellers tools do you have?"

In 3Dsellers, Settings > Profile > API / MCP > Connect MCP shows the server URL and the steps for each assistant:

Connect your AI assistant

Claude (claude.ai, Claude Desktop)

3Dsellers is listed in Claude's connector directory.

1. Open the 3Dsellers connector in Claude and click Connect.
2. Sign in to your 3Dsellers account and approve access.
3. In a chat, turn the connector on from the + menu.

Custom connector option: Settings > Connectors > Add custom connector, paste https://api.3dsellers.com/mcp, then sign in.

ChatGPT

1. In ChatGPT, add a new app.
2. Paste https://api.3dsellers.com/mcp as the server URL and choose OAuth.
3. Sign in with your 3Dsellers account and click Accept.
4. Pick 3Dsellers from the + menu in any chat.

Grok

1. Open grok.com/connectors.
2. Click New Connector, then Custom.
3. Paste https://api.3dsellers.com/mcp and save.
4. Sign in with your 3Dsellers account and approve access.

Developer tools (Cursor, VS Code, Claude Code, Cline, Gemini CLI)

Developer tools connect with a bearer token.

Get a token: in 3Dsellers open Settings > Profile > API / MCP (app.3dsellers.com/api-mcp), click Connect MCP, then under For developers generate a token. The token is shown once. Replace YOUR_TOKEN_HERE below with it.

Cursor

One click: 3Dsellers on Cursor Directory. Or add this to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (one project):

{
  "mcpServers": {
    "3dsellers": {
      "type": "http",
      "url": "https://api.3dsellers.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_TOKEN_HERE"
      }
    }
  }
}

VS Code (GitHub Copilot agent mode)

Add this to .vscode/mcp.json, or run MCP: Add Server from the Command Palette:

{
  "servers": {
    "3dsellers": {
      "type": "http",
      "url": "https://api.3dsellers.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_TOKEN_HERE"
      }
    }
  }
}

Claude Code

claude mcp add --transport http 3dsellers https://api.3dsellers.com/mcp --header "Authorization: Bearer YOUR_TOKEN_HERE"

Cline

Add this to cline_mcp_settings.json (Cline > MCP Servers > Configure):

{
  "mcpServers": {
    "3dsellers": {
      "type": "streamableHttp",
      "url": "https://api.3dsellers.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_TOKEN_HERE"
      }
    }
  }
}

Gemini CLI

Install the extension, then sign in with your 3Dsellers account:

gemini extensions install https://github.com/3dsellers/3dsellers-mcp

In Gemini CLI, run /mcp auth 3dsellers to sign in. Or add the server with a token:

gemini mcp add --transport http --header "Authorization: Bearer YOUR_TOKEN_HERE" 3dsellers https://api.3dsellers.com/mcp

Kiro

Add this to .kiro/settings/mcp.json (one workspace) or ~/.kiro/settings/mcp.json (all workspaces), then sign in with your 3Dsellers account:

{
  "mcpServers": {
    "3dsellers": {
      "url": "https://api.3dsellers.com/mcp"
    }
  }
}

Other clients

Windsurf, Codex CLI, Perplexity, Mistral Le Chat and any client that supports remote MCP servers over streamable HTTP use the same URL, https://api.3dsellers.com/mcp, and either the OAuth sign-in or the Authorization: Bearer header.

Ready-to-copy files are in examples/.

Step-by-step guide with screenshots: How to connect AI agents to 3Dsellers using MCP.

MCP client compatibility

The server uses streamable HTTP and supports OAuth 2.0 with dynamic client registration, so clients that support MCP sign-in find the login page by themselves.

What you can ask

Tools that change data ask for your approval before they run.

Channels

One connection covers every channel connected to your 3Dsellers account. The AI works through 3Dsellers, so you do not need a developer account or API keys for any marketplace.

• eBay MCP server: create, revise and publish listings, item specifics, business policies, store categories, offers to watchers, listing templates, orders and buyer messages.
• Amazon MCP server: publish catalog products to Amazon, update inventory and prices, and manage orders.
• Walmart MCP server: publish products to Walmart, update inventory and prices, and manage orders.
• Etsy MCP server: publish products to Etsy, update inventory and prices, and manage orders.
• Shopify MCP server: publish products to Shopify, update inventory and prices, and manage orders.
• TikTok Shop MCP server: publish products to TikTok Shop, update inventory and prices, and manage orders.
• WooCommerce, BigCommerce and more: every other channel connected to your 3Dsellers account.

Tools

150+ tools, grouped by area. Read tools only look at your data. Write tools make changes, and the assistant asks for your approval before it runs them.

Products & Catalog

Listings & Publishing

Inventory

Orders

Bulk Actions

CSV Import

Export & Reports

Categories & Field Mapping

Helpdesk & Messages

Automations

Offers

Listing Designer

Selling Accounts

Hosted vs a local open-source server

Some eBay MCP servers on GitHub run on your own computer and call the eBay API directly. Here is how the hosted 3Dsellers server compares.

Security and permissions

• The assistant never sees your marketplace passwords. It connects to 3Dsellers with OAuth or a token.
• Each token has a scope. product:read can only read products, product:write can change them, and Full access means every tool.
• Every REST and MCP call is logged under Settings > Profile > API / MCP > Requests: time, source, tool, status and duration. Values that look like secrets are shown as [redacted].
• Revoke one token, or all tokens at once, on the same page.
• Never commit a token to a repository. If a token leaks, revoke it and create a new one.

Manage tokens, permissions and requests

Every AI assistant and integration connects to 3Dsellers with a token. The API / MCP page in Settings shows every token, what it is allowed to do, every call it made, and how much of your rate limit is left.

Connect and create tokens

Open Settings > Profile > API / MCP, or go to app.3dsellers.com/api-mcp.

• Add to Claude connects Claude with a sign-in and no token to copy.
• Get API token creates a bearer token for your own script or integration.
• Connect MCP shows the server URL and a token for developer tools such as Cursor, VS Code and Claude Code.

A token is shown only once, when it is created. Copy it right away and keep it private.

See what each token is allowed to do

The Issued tokens list shows every token with its scope, status, request count, last use and expiry. The scope is the permission: product:read can only read products, product:write can change them, and Full access means every tool.

• Revoke stops one token on its next request.
• Revoke all cuts off every app and AI agent at once. Use it if a token leaked.

Review every call the AI made

The Requests tab logs every REST API call and every MCP tool call: time, source, tool name, status, duration and the error message when a call failed. Filter by token, source, status or date, and click a row for the full details. Values that look like secrets are shown as [redacted], and only people in your 3Dsellers company can see the log.

Watch your rate limits

The Rate limits tab shows each limit, how much of it you used this minute and today, and when it resets. REST and MCP calls share the same counters.

Full guide: API / MCP page: tokens, request log and rate limits.

Rate limits and pricing

• Included in every plan: the MCP server is part of every 3Dsellers plan, including the free trial.
• AI actions: actions the AI runs use AI actions bought in advance: AI Lite, 2,000 actions for $9 a month; AI Pro, 5,000 for $20; AI Elite, 10,000 for $29. Reading your data is free.
• Rate limits: REST and MCP calls share the same counters. Paid plans get 600 calls a minute and 50,000 a day. Per-minute counters reset every 60 seconds, per-day counters at 00:00 UTC.

Current prices: 3dsellers.com/pricing.

Troubleshooting

• The 3Dsellers tools do not show up: in a chat app, turn the connector on from the + menu. In a developer tool, reload the MCP servers or restart the app.
• 401 Unauthorized: sign in again, or check on the API / MCP page that the token is active and not revoked or expired.
• 403 subscription_required: the account needs an active 3Dsellers plan or free trial.
• 429 Too Many Requests: you reached a rate limit. Wait for the time in the Retry-After header, and check the Rate limits tab.
• A tool call failed: open the Requests tab on the API / MCP page. The row shows the tool, the status and the error message.
• The sign-in window does not open in a developer tool: use a bearer token from Connect MCP instead.
• Still stuck: email support@3dsellers.com with the time of the call and the tool name.

FAQ

What is an MCP server for eBay sellers? A hosted connection that lets an AI assistant such as Claude or ChatGPT work inside your 3Dsellers account: search and create products, publish listings to eBay and your other channels, update inventory and prices, manage orders and answer buyers. You connect it once with https://api.3dsellers.com/mcp and sign in.

Do I need an eBay developer account? No. 3Dsellers is already connected to your eBay account, so the AI works through 3Dsellers. There is nothing to install and no API keys to manage.

Can ChatGPT list items on eBay for me? Yes. Add 3Dsellers as an app in ChatGPT with the server URL, sign in, and ask it to create and publish a listing. ChatGPT shows you the draft and publishes it after you approve.

Can Claude create and publish eBay listings? Yes. Add 3Dsellers from Claude's connector directory, sign in, and ask Claude to create a product and publish it to your eBay store.

Can one AI chat manage eBay, Amazon, Walmart and Shopify? Yes. 3Dsellers keeps one catalog for every channel, so one connection covers all of them, including publishing a product from one channel to another.

Which AI assistants work with it? Any assistant that supports remote MCP servers: Claude, ChatGPT, Grok, Claude Code, Cursor, VS Code, Cline, Windsurf, Gemini CLI, Kiro, Codex CLI, Perplexity, Mistral Le Chat and others.

Is there a REST API too? Yes. The same account and token work with the 3Dsellers REST API. Reference: api.3dsellers.com/docs.

Is this repository the server's source code? No. The server is hosted and maintained by 3Dsellers. This repository contains documentation and config examples only.

Links

• MCP server page: 3dsellers.com/channel-integration/3dsellers-mcp
• Setup guide: How to connect AI agents to 3Dsellers using MCP
• Tokens, request log and rate limits: Help Center article
• REST API: api.3dsellers.com/docs
• Video: 3Dsellers MCP in under eight minutes
• Official MCP Registry: com.3dsellers/mcp
• Support: support@3dsellers.com
• Privacy policy: 3dsellers.com/privacy-policy

License

The documentation and examples in this repository are released under the MIT License. The 3Dsellers service is subject to the 3Dsellers terms.