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. 120+ 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
• Claude Code plugin
• 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

• 120+ 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.
• Claude Code plugin: one install adds the MCP server plus skills and slash commands for listings, orders, inventory, bulk edits and buyer messages. See Claude Code plugin.
• 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

Option 1, the plugin. It adds the MCP server and the skills and slash commands described in Claude Code plugin:

/plugin marketplace add 3dsellers/ebay-mcp-server

/plugin install 3dsellers@3dsellers-mcp

Then run /mcp, pick 3dsellers and choose Authenticate. A browser window opens for your 3Dsellers login (OAuth), so there is no token to copy.

Option 2, the server only:

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/ebay-mcp-server

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.

Claude Code plugin

The plugins/3dsellers folder of this repository is a Claude Code plugin. It contains no code: a manifest, the MCP server entry, six skills and five slash commands, all plain Markdown and JSON. The skills tell Claude which 3Dsellers tools to call, in which order, and where to stop and ask you.

Install:

/plugin marketplace add 3dsellers/ebay-mcp-server

/plugin install 3dsellers@3dsellers-mcp

Sign in with OAuth the first time Claude calls a 3Dsellers tool, or run /mcp, pick 3dsellers and choose Authenticate. Then run /3dsellers:status.

Skills

Claude loads a skill on its own when your request matches it. You can also start one by name.

Slash commands

| /3dsellers:stock [threshold] | `/3dsellers:s