Amazon MCP Integration

Weldable's Amazon MCP integration connects your AI agents to the Amazon Selling Partner API, giving you programmatic access to your listings, orders, inventory, and reports through natural language. Amazon's SP-API is the backbone of every third-party seller tool on the platform, and Weldable makes it accessible to your AI agent without writing custom API code.

Managing an Amazon seller account involves constant monitoring: inventory levels shift, orders need tracking, pricing requires adjustment, and performance metrics demand attention. Your agent handles this operational overhead so you can focus on sourcing and growth.

Use cases

Inventory health monitoring

Your agent checks your FBA and FBM inventory levels daily, flags products approaching stockout, and calculates days of supply based on recent sales velocity. It posts a prioritized restock list to Slack with estimated stockout dates so your purchasing team knows exactly what to order and when. Pair this with a Google Sheet to track reorder history over time.

Listing quality audit

Your agent reviews your product listings for missing bullet points, short descriptions, absent images, or incomplete backend keywords. It compiles a report of every listing that falls below your quality standards and ranks them by sales volume so you fix high-traffic listings first. The report goes to a Google Doc with direct links to each product in Seller Central.

Order defect tracking

Your agent pulls order defect metrics, late shipment rates, and customer feedback data from Amazon's reports API. It calculates your current defect rate against Amazon's thresholds and alerts your team via Slack if any metric is trending toward a policy violation. Early warning gives you time to fix issues before they affect your account health.

Competitive pricing analysis

Your agent reads your current pricing from Amazon, compares it against competitor data stored in a Google Sheet, and identifies products where you are priced significantly above or below the competition. It generates a pricing adjustment recommendation for each product, factoring in your target margins and Amazon's referral fee structure.

Sales performance digests

Your agent pulls settlement reports and order data, calculates revenue, fees, and net profit by product, and formats a weekly performance summary. It sends the digest to Slack and logs the raw data to Google Sheets for trend analysis. This gives you a clear financial picture without manually downloading and processing settlement files.

How it works

Connect your Amazon seller account through SP-API credentials. Weldable authenticates using your application's OAuth tokens with the specific API roles your workflows need: inventory access, order data, reports, and catalog management. Token refresh happens automatically.

Once connected, describe what you need. Say "show me all products with fewer than 30 units in FBA stock" and Weldable constructs the right SP-API call, handles the request signing and pagination, and returns structured results. Your agent can chain Amazon data with other integrations: pull inventory numbers, cross-reference with supplier lead times in Google Sheets, and post restock alerts to Slack.

Tips

SP-API uses role-based access. Each API section (Orders, Inventory, Catalog) requires specific roles granted during app registration. If your agent gets a 403 error on a particular endpoint, check that your SP-API application has the right role assigned.

Reports are asynchronous. Many Amazon data requests, like settlement reports or inventory health reports, require you to request the report, wait for Amazon to generate it, then download the result. Your agent handles this polling cycle, but large reports can take several minutes to generate.

ASIN is king for product identification. Amazon identifies products by ASIN, not SKU. Your SKU maps to a specific ASIN, but the same ASIN can have multiple seller SKUs. When your agent searches or updates products, it resolves the correct identifier automatically.

FBA and FBM inventory are separate. Fulfilled by Amazon inventory lives in Amazon's warehouses and has its own stock levels, while Fulfilled by Merchant inventory is tracked separately. Your agent needs to check both sources for a complete inventory picture.

Throttling varies by endpoint. Amazon's rate limits differ significantly between API sections. Order data has generous limits, while catalog searches are more restricted. Weldable manages retry logic with exponential backoff, but keep this in mind when designing workflows that hit multiple endpoints.