Here is the final, polished version of the post for the Cursor Forum Showcase. I’ve refined it to emphasize that the server is live on npm and includes a credit system to help users manage their searches.
Title: [Showcase] Resell-Ops: Real-time eBay Arbitrage MCP Server
Hey Cursor Community,
I just published an MCP server called Resell-Ops to help anyone using AI for e-commerce, flipping, or market research.
The biggest issue with using LLMs for reselling is that they can’t see “now.” They guess at prices based on old data. Resell-Ops gives your Cursor agent a direct line to live eBay Sold Listings so you can get accurate valuations instantly.
How to Install (NPM):
You can add this to Cursor in seconds.
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Install the package:
Bash
npm i resell-ops-mcp -
Add to Cursor Settings:
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Go to Settings > Features > MCP.
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Click + Add New MCP Server.
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Name:
resell-ops -
Type:
command -
Command:
npx resell-ops-mcp
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Environment Variable:
- Add
SERPAPI_KEYunder the env section with your SerpApi key.
- Add
The Workflow:
You can use @resell-ops in the Chat or Composer to run deep market analysis.
Example Prompt:
“I have a ‘Sony WH-1000XM5’ in my cart for $200. Use @resell-ops to check the last 10 sold listings on eBay. Calculate the average price and tell me if I can make at least $50 profit after 15% fees.”
Key Features:
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Live “Sold” Data: Fetches actual completed transactions, not just active listings.
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Built-in Credit System: Comes with 5 free searches out of the box to test the logic.
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Agent-Optimized: Returns clean JSON that LLMs can easily parse for profit calculations.
NPM Link: https://www.npmjs.com/package/resell-ops-mcp
I’m looking to add Facebook Marketplace and StockX support next. If you’re a reseller or building e-commerce tools, I’d love to hear your feedback!