MCP Connector -- Getting Started
Connect SellerLegend to ChatGPT and Claude to access your Amazon seller data directly inside AI conversations. Ask questions about sales, inventory, costs, advertising, and more using natural language.
What Is MCP?
MCP (Model Context Protocol) is an open standard that lets AI assistants securely connect to external services. When you connect SellerLegend via MCP, the AI can pull your real Amazon data to answer questions, run analyses, and generate insights -- all within your chat.
Prerequisites
- An active SellerLegend account (guest users cannot create connectors)
- ChatGPT: Plus, Pro, Business, Enterprise, or Edu subscription
- Claude: Pro subscription
Choose Your Platform
The setup steps differ between ChatGPT and Claude. Pick the guide for the platform you want to use:
- Connect SellerLegend MCP to ChatGPT — uses a per-connector callback URL that you copy from ChatGPT into SellerLegend
- Connect SellerLegend MCP to Claude — uses a fixed Claude callback URL
Recent change for ChatGPT users (2026)
ChatGPT's "New App" flow no longer uses the old fixed redirect URL. ChatGPT now generates a unique callback URL per app that you must paste into your SellerLegend OAuth client. See the ChatGPT guide for details.
One redirect URL per OAuth client
SellerLegend OAuth clients accept only a single redirect URL. If you want to use both ChatGPT and Claude, create a separate OAuth client for each.
What to Do Next
- Read Example Prompts for ideas on what to ask
- Browse the Available Tools reference
- Check Troubleshooting if you run into issues