# Underpriced AI Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Underpriced AI

Check what secondhand items sell for on eBay and get a worth-it verdict before you buy or list.

- Record: https://musedirectory.ai/connector/underpriced-ai
- Category: Shopping & Commerce
- Developer: Underpriced AI (https://underpricedai.com/mcp)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 909ms, checked 2026-09-28T08:01:58Z
- Endpoint: https://underpricedai.com/api/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-24T21:10:49Z)
- Source: Found in the official MCP Registry (com.underpricedai/underpriced-ai) https://registry.modelcontextprotocol.io/v0/servers?search=com.underpricedai%2Funderpriced-ai

Looks up real eBay sold listings to estimate resale value for secondhand items. Shows price ranges, recent comps, list prices with sell probability, net after fees, and whether a purchase or sale makes sense. Can draft eBay listings from photos.

Example request: "I found a used camera at a thrift store for $40, is it worth buying to resell on eBay?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Underpriced AI to help me. It is a free service with an MCP server at https://underpricedai.com/api/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- 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 (fast, market, patient) with the 14-day sell chance, the net after eBay fees, and a worth-it verdict when you pass what the user would pay. Giv
- 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 when the user wants to see what actually sold and for how much.
- 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 price_item first when the sale price is unknown.
- 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 on a monthly bill, no cap), and for a signed-in user their balance. With a pack it returns a Stripe Checkout link for that user; with PAY_A
- 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 the background. Call it with the account.scanId a photo price returned when that result said comps were still loading (about 20 seconds later
- 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 Underpriced AI account (title, list price defaulting to the market price, condition, description) and returns the link where they review and publish

Screening checks:
- MCP handshake: pass (Answered in 478ms)
- Domain against threat feeds (Cloudflare security DNS): pass (underpricedai.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (6 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 271 days ago)
- AI review of purpose and tool behavior: pass (No concerns)