Resale prices for secondhand items from real eBay sold listings, with comps and a worth-it verdict. Connect the official Underpriced AI MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http underpriced-ai https://underpricedai.com/api/mcpRun in your terminal, then restart Claude Code.
Underpriced AI · https://underpricedai.com/api/mcp
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “price_item”: What a secondhand item sells for on eBay US: a calibrated estimate with a range, the recent real sold comps behind it, three list prices (fa.”
“Use “get_sold_comps”: The most recent real eBay US sales for a search query (brand, model or pattern, a few specific words), with the count, median and quartiles.”
“Use “worth_it”: Net after eBay fees and a verdict (worth it / thin / pass) for an expected sale price and what the user would pay. Pure arithmetic; use pric.”
“Use “buy_credits”: Ways to pay for Underpriced AI scans. Without a choice it lists the credit packs (credits never expire), pay as you go ($0.25 per photo scan.”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Underpriced AI holds up.
Operated by Underpriced AI (underpricedai.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If Underpriced AI adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose Underpriced AI in the gate directory. No sign-in needed.
Underpriced AI's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
price_item — What a secondhand item sells for on eBay US: a calibrated estimate with a range, the recent real sold comps behind it, three list prices (fa
get_sold_comps — The most recent real eBay US sales for a search query (brand, model or pattern, a few specific words), with the count, median and quartiles.
worth_it — Net after eBay fees and a verdict (worth it / thin / pass) for an expected sale price and what the user would pay. Pure arithmetic; use pric
buy_credits — Ways to pay for Underpriced AI scans. Without a choice it lists the credit packs (credits never expire), pay as you go ($0.25 per photo scan
get_scan_result — For a signed-in user: the finished result for a scan on their account, in the same shape as price_item, once the sold comps have landed in t
list_on_ebay — For a signed-in user: turns a photo scan from price_item (account.scanId) into an inventory item with a draft eBay listing on their Underpri
https://underpricedai.com/api/mcpYes — Underpriced AI operates its own remote MCP server at underpricedai.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick Underpriced AI in the directory. No account or sign-in is needed. From then on, Underpriced AI's tools are available in every client you've connected to gate.
No. Underpriced AI runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Yes — you can get started with gate for free and connect Underpriced AI in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up Underpriced AI in: Claude · Claude Code · ChatGPT · Cursor · VS Code
One URL. All MCPs. Full control. Free to start.
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