Smarter Marketplace Shopping Starts Here

AI Price Estimates + Trust Insights for Facebook Marketplace, TikTok Shop, Mercari, Poshmark, and More

Trying to figure out if a marketplace price is fair — or if you're about to get scammed? Whether you're browsing Facebook Marketplace, Mercari, TikTok Shop, Poshmark, Craigslist, OfferUp, or Depop, Mcheck.io helps you make safer, smarter buying decisions.

Our tool gives you a fast, accurate AI-generated price estimate based on the item's title, condition, and description — so you can spot overpriced or underpriced listings instantly. At the same time, we analyze listing details and seller conversations to flag common scam tactics and risky behavior.

Every listing also gets a Trust Score, calculated by our AI based on multiple factors like suspicious language, pressure tactics, vague descriptions, or unusual payment requests. Think of it as a second opinion before you message the seller.

What You Get with Mcheck.io:

• AI Price Estimate Tool — See what your item is really worth before buying
• Marketplace Price Checker — Compare across Facebook Marketplace, TikTok Shop, Mercari, Poshmark, OfferUp, and more
• Red Flag Detection — Spot scams like fake listings, urgency tricks, or shady payment methods
• Seller Message Review — Scan DMs or messages for sketchy language or manipulation
• AI Trust Score — A simple score to help you quickly assess risk and listing reliability

Whether you're hunting for deals, flipping items, or just browsing, Mcheck.io gives you AI-powered pricing and safety insights — so you can shop smarter on any marketplace.