MarceauSolutions/amazon-seller-mcp

AI-powered Amazon Seller Central tools for inventory management, fee calculation, and optimization via SP-API.
mcp-name: io.github.wmarceau/amazon-seller
Features
| Feature | Script | Description |
|---------|--------|-------------|
| SP-API Integration | amazon_sp_api.py | Core API with caching |
| FBA Fee Calculator | amazon_fee_calculator.py | 2026 fee structure |
| Inventory Optimizer | amazon_inventory_optimizer.py | Restock recommendations |
| OAuth Authentication | amazon_oauth_server.py | OAuth flow handling |
| MCP Server | amazon_seller_mcp.py | MCP protocol wrapper |
Directory Structure
MCP Tools
| Tool | Description |
|------|-------------|
| get_inventory_summary | Get FBA inventory levels |
| get_orders | Get recent orders |
| get_order_items | Get order line items |
| get_product_details | Get product info |
| calculate_fba_fees | Calculate comprehensive fees |
| estimate_profit_margin | Quick profit estimation |
| suggest_restock_quantities | Reorder recommendations |
| analyze_sell_through_rate | Sales velocity analysis |
See SKILL.md for detailed tool documentation.
Quick Start
1. Install Dependencies
2. Configure Credentials
Create .env file:
3. Test Connection
4. Run MCP Server
CLI Usage
Calculate Fees
Get Inventory Recommendations
Key Features
2026 Fee Structure
- FBA fulfillment fees (size-tier based)
- Monthly storage fees (seasonal rates)
- Aged inventory surcharges (12-15mo, 15+mo)
- Low inventory level fees
- GET call fee awareness (post April 2026)
Caching Layer
Aggressive caching to minimize API costs:
- Inventory: 30 min
- Orders: 15 min
- Products: 24 hours
- Fees: 24 hours
Multi-Marketplace
Supports US, CA, MX, BR, UK, DE, FR, IT, ES, NL, JP, SG, AU
Version
Current version: 1.0.0
License
MIT License