ChatGPT

ChatGPT connects to remote MCP servers as a custom connector in developer mode.

PrerequisitesCopy Anchor Link

• A SellerSheet account with a connected store — Connect your store.
• A paid ChatGPT plan — developer mode is available on paid plans.

Step 1: Copy the SellerSheet MCP URLCopy Anchor Link

https://sellersheetai.com/mcp

Step 2: Add SellerSheet in ChatGPTCopy Anchor Link

1. In ChatGPT, open Settings → Apps & Connectors → Advanced settings and turn on Developer mode.
2. Back in Apps & Connectors, choose Create, name it SellerSheet, and paste https://sellersheetai.com/mcp as the MCP server URL with OAuth authentication.

Step 3: Sign in and testCopy Anchor Link

1. Sign in to SellerSheet when the browser asks, then enable the connector in a chat.
2. Ask: "Which stores can you see?" Your agent calls get_user_context and lists your store refs, such as myStore-US, with your plan and each store's status. Every session should start there.

TroubleshootingCopy Anchor Link

"Unauthorized" (401)Copy Anchor Link

Your sign-in or key expired or was deleted. Sign in again, or create a new key.

The browser never opensCopy Anchor Link

Update the client — older versions don't support MCP sign-in — or use an API key.

"No stores"Copy Anchor Link

Connect a store first: Connect your store.

More in Troubleshooting. Next: Install the skills, or try the prompt library.