Any MCP client

Any client that speaks MCP over Streamable HTTP works.

PrerequisitesCopy Anchor Link

• A SellerSheet account with a connected store — Connect your store.
• A client that speaks MCP over Streamable HTTP.
• For a headless client, an API key.

Step 1: Copy the SellerSheet MCP URLCopy Anchor Link

https://sellersheetai.com/mcp

Step 2: Add SellerSheet in your clientCopy Anchor Link

• URL https://sellersheetai.com/mcp, transport Streamable HTTP ("type": "http" or "streamableHttp" in most configs).
• Interactive clients sign in with OAuth 2.0 + PKCE: the server answers the first request with 401 and points the client at /.well-known/oauth-authorization-server; the client opens the browser.
• Headless clients send Authorization: Bearer <your key>.

Step 3: Sign in and testCopy Anchor Link

1. Sign in in the browser when your client opens it — or, headless, send the key.
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.

Test a key from a terminal:

curl -sS https://sellersheetai.com/mcp \
  -H "Authorization: Bearer $SELLERSHEET_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

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.

Tools time outCopy Anchor Link

Some Amazon reports take a minute or two. Raise your client's MCP tool timeout.

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