Seller Profit Doctor

Connect it to your AI

Claude Code

claude mcp add --transport http free-tools https://sellerprofitdoctor.com/api/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://sellerprofitdoctor.com/api/mcp

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "free-tools": {
      "url": "https://sellerprofitdoctor.com/api/mcp"
    }
  }
}

Tools it offers

16 tools, as the server itself reported during our check on Oct 31, 2026.

• sellerprofit_checkupRuns the free profit check-up for an Etsy shop, a Shopify store or an Amazon seller. Returns the grade (a word such as Watch, with level 1 Healthy to 5 Losing money), what one order (Amazon: one unit) and the month keep
• sellerprofit_etsy_feesWorks out Etsy's fees on one sale, line by line: the $0.20 listing fee, the 6.5% transaction fee, the 3% + $0.25 payment processing fee (also charged on sales tax), the 2.5% currency conversion when it applies, and the O
• sellerprofit_etsy_profitWorks out what one Etsy sale leaves the seller: the order total, minus Etsy's listing, transaction and payment processing fees, the Offsite Ads fee when the sale came from one, materials, packaging and the shipping label
• sellerprofit_offsite_adsWorks out what Etsy's Offsite Ads cost a shop at its share of sales (12% or 15% of an attributed order, at most $100 an order), per order and per month, and the item price that covers the fee. It fits a seller who asks w
• sellerprofit_shipping_gapWorks out the shipping gap for an Etsy shop: what the label and packaging cost beyond what the buyer pays, per order and per month, and the fixes: the item price that covers the gap with shipping kept under Etsy's $6 sea
• sellerprofit_ads_breakevenWorks out the ROAS at which an Etsy shop's Etsy Ads pay for themselves (break-even ROAS = order ÷ what an ad order keeps after Etsy's fees and costs), the most an ad can cost per sale, and, with the shop's ROAS, what the
• sellerprofit_price_for_marginWorks out the item price at which one Etsy order keeps a target profit after Etsy's fees (listing, 6.5% transaction, 3% + $0.25 processing), the average Offsite Ads fee, Etsy Ads spread over orders, materials, packaging
• sellerprofit_sale_breakevenWorks out how many more orders a sale or coupon needs just to keep the same profit a month, for one item on Etsy, Shopify or Amazon. Each platform's fees are worked out at the full price and again at the sale price: perc
• sellerprofit_compare_feesWorks out the fees on one sale on Etsy (listing, transaction, processing; Offsite Ads optional), on a Shopify store (card fee by plan through Shopify Payments) and on Amazon (referral fee by category, the Individual plan
• sellerprofit_ads_roas_breakevenWorks out the ROAS (ad revenue ÷ ad spend, as Meta or Google reports it) at which Facebook, Instagram or Google ads pay for themselves, when the ad sends buyers to a Shopify store, an Etsy listing or an Amazon listing, w
• sellerprofit_box_billingWorks out the billable weight of one box with USPS (Priority Mail, Ground Advantage), UPS (Daily Rates and Retail Rates) and FedEx, from its outside size in inches and its actual weight, with each carrier's 2026 dimensio
• sellerprofit_shopify_plan_fitWorks out which Shopify plan (Basic, Grow, Advanced) costs least at a store's card sales: each plan's price plus the card fees that change with the plan (or Shopify's third-party fee on sales through another processor),
• sellerprofit_shopify_order_feesWorks out every fee on one order of a US Shopify store, line by line: the Shopify Payments card fee by plan (premium cards optional), the international card and currency conversion fees, the 1.25% for mixing Shopify Paym
• sellerprofit_amazon_feesWorks out Amazon's fees on one unit at a price: the referral fee for the category (official, with the $0.30 minimum where the category has one), the $1.80 media closing fee (official), and for FBA an estimate of the fulf
• sellerprofit_amazon_ads_breakevenWorks out the ACoS (ad spend ÷ the sales the ads bring) at which Amazon Sponsored Products pay for themselves: what a unit an ad brings keeps before the ad (after the referral fee, the FBA fee estimate or the label and p
• sellerprofit_ratesReturns one platform's fee table, the one this server's numbers use: every fee and rule with its value, a plain label, its source link and the day it was checked, whether it's official or a third-party estimate, and both

Questions