# Custom MCP

> Custom MCP connects a business's Shopify, Amazon and ad data (Amazon Ads, Facebook and Instagram Ads, Google Ads and TikTok Ads) directly to ChatGPT and Claude, with custom logic for how that business counts profit, returns and ROAS. It is a done-for-you service for US Shopify brands, Amazon sellers and e-commerce agencies.

## What we deliver

- A private MCP connection (Model Context Protocol, the standard ChatGPT and Claude use to read outside data) built for one business or one agency client.
- Data from Shopify, Amazon Seller Central or Vendor Central, Amazon Ads, Meta (Facebook and Instagram) Ads, Google Ads, TikTok Ads, Klaviyo, review apps, cost-of-goods spreadsheets, 3PL and wholesale reports, and competitors' public prices, reviews and ads.
- Custom business rules: net revenue, cost of goods, Amazon fees, refunds and returns, blended ROAS and cost per new customer, with each ad platform's own claim shown alongside and never added together.
- Read-only access through official APIs. No shared logins, no scraping of private accounts, each client's data in its own database.
- Built, hosted and kept up to date for the client, with a one-time setup fee and a monthly fee per store or per client.

## Who it is for

- Shopify brands: know real profit and ROAS by product after ads, returns and cost of goods.
- Amazon sellers: see what every ASIN really earns after referral and FBA fees, storage fees, ads and returns.
- Agencies (Shopify and DTC growth, paid social and performance, Amazon): one agency link to ask about any client or compare them all, and draft monthly client summaries in minutes.

## Example questions clients ask in ChatGPT or Claude

- Which products made money last month after Facebook ads and returns?
- Which ASINs lost money last month after Amazon fees and ads?
- Which search terms spent $500 in the last 30 days with zero orders?
- Which clients' ROAS dropped last month, and why?

## Key pages

- [Home](https://custom-mcp.com/): overview, how it works, ads, security and FAQ
- [For Shopify brands](https://custom-mcp.com/shopify)
- [For Amazon sellers](https://custom-mcp.com/amazon)
- [For agencies](https://custom-mcp.com/agencies)
- [Privacy note](https://custom-mcp.com/privacy)

## Guides

- [How to connect Shopify to ChatGPT and Claude](https://custom-mcp.com/guides/connect-shopify-to-chatgpt-and-claude)
- [How to connect Amazon Seller Central to ChatGPT or Claude](https://custom-mcp.com/guides/connect-amazon-seller-central-to-chatgpt-and-claude)
- [What is an MCP server? A plain-English guide for ecommerce](https://custom-mcp.com/guides/what-is-an-mcp-server-for-ecommerce)
- [Blended ROAS vs platform ROAS](https://custom-mcp.com/guides/blended-roas-vs-platform-roas)

## Contact

- Book a demo: https://custom-mcp.com/#demo
- Email: himanshu@custom-mcp.com