What’s the Seller Labs MCP Server — and why does it matter?

Think of the MCP Server as the bridge between your Amazon data and Claude.

It lets your AI assistant access real-time business data — safely and securely — without needing your Amazon login.

With the MCP Server connected, you can ask Claude questions like:

“What SKUs dropped in profit last week?”
“Which keywords are driving the most conversions this month?”
“How did my ad spend impact margin across top ASINs?”

Claude will instantly pull the data, analyze it, and give you clear answers — with charts, summaries, or SQL-style results if needed.

⚙️ Step-by-Step: How to Connect Seller Labs MCP Server using Claude Code app.

This guide explains how to connect the Seller Labs MCP server to Claude Code with OAuth authentication.

Prerequisites

Claude Code CLI installed
Access to Seller Labs Ignite API with valid credentials

Step 1: Add MCP Server Configuration

Edit your ~/.claude.json file (create it if it doesn't exist) and add the MCP server configuration:

{
  "mcpServers": {
    "sellerlabs": {
      "type": "http",
      "url": "https://ignite-api.sellerlabs.com/mcp",
      "oauth": {
        "authorizationUrl": "https://ignite-api.sellerlabs.com/oauth2/authorize",
        "tokenUrl": "https://ignite-api.sellerlabs.com/oauth2/token",
        "scopes": [
          "openid",
          "mcp",
          "offline_access",
          "execute_sql",
          "get_org_info"
        ]
      }
    }
  }
}

The claude mcp add command does not support OAuth-specific parameters (authorizationUrl, tokenUrl, scopes).
It only supports basic HTTP server setup.

To add the base entry first, run:

claude mcp add --transport http --scope user sellerlabs https://ignite-api.sellerlabs.com/mcp

Then manually edit ~/.claude.json to add:

"oauth": {
  "authorizationUrl": "https://ignite-api.sellerlabs.com/oauth2/authorize",
  "tokenUrl": "https://ignite-api.sellerlabs.com/oauth2/token",
  "scopes": ["openid", "mcp", "offline_access", "execute_sql", "get_org_info"]
}

OAuth Field Details

authorizationUrl — URL where the user logs in
tokenUrl — URL where Claude exchanges auth codes for tokens
scopes:
- openid: Basic user identity
- mcp: Access to MCP server
- offline_access: Allows refresh tokens
- execute_sql: Permission to run SQL queries
- get_org_info: Permission to retrieve organization information

Step 2: Restart Claude Code

After updating the config file:

Exit Claude Code
Start a new session

Step 3: Verify Server Configuration

Run:

claude mcp list

Expected output:

sellerlabs: https://ignite-api.sellerlabs.com/mcp (HTTP) - ⚠ Needs authentication

Step 4: Authenticate with OAuth

In Claude Code, type:

/mcp

This will:

Open the MCP management menu
Display the SellerLabs server
Launch a browser window for OAuth login
Prompt you to log in with SellerLabs credentials
Return you to Claude Code after authentication

You should see:

Authentication successful. Connected to sellerlabs.

Step 5: Verify Connection

Run:

claude mcp get sellerlabs

Or test it directly in Claude Code:

Show me my venues

Available MCP Tools

1. execute_sql

Run SQL queries on your organization’s SellerLabs database.

Supports: SELECT, SHOW TABLES, DESCRIBE, EXPLAIN, SET
Example:
```
SELECT * FROM venues LIMIT 10;
```

2. get_org_info

Retrieve organization metadata, such as org ID, venues, and related details.

Troubleshooting

Server shows "Needs authentication"

Run /mcp and complete the browser login
Confirm OAuth config is correct in .claude.json

OAuth flow doesn’t open a browser

Check OAuth config
Restart Claude Code
Try /mcp again

Authentication expires

offline_access allows automatic refresh
If needed:
- Go to /mcp
- Select the Seller Labs server
- Choose Clear authentication

Can't see the MCP server

Validate JSON syntax
Ensure the file is located at ~/.claude.json
Restart Claude Code

Managing Authentication

To clear or reset authentication:

Type /mcp
Select sellerlabs
Choose Clear authentication
Reauthenticate when prompted

Security Notes

OAuth tokens are securely stored
Refresh tokens extend session life automatically
offline_access minimizes reauthentication
You may revoke access using the /mcp menu

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Connecting the Seller Labs MCP Server via Claude Code app