SELT

SELT is the only verified marketplace built exclusively for college students. Every user enters through their university Single Sign-On, meaning every buyer and every seller is a real, accountable student. No anonymous accounts. No ghost listings. No scams. We replace the chaos of Facebook Marketplace and GroupMe with a walled-garden economy where SSO authentication is the price of entry. SELT is not just a safer way to buy and sell on campus. It is the national standard for how student commerce should work.

College students lose millions of dollars every year to scams on platforms that were never built for them. Facebook Marketplace, Reddit, and GroupMe all share the same fatal flaw: anyone can create an account. That anonymity is a weapon. Scammers post fake listings for textbooks, and electronics, collect payment, and vanish before a student ever realizes what happened. For someone on a tight budget, losing $300 is not an inconvenience. It is rent. It is groceries. SELT exists because the campus economy deserves its own infrastructure. We require every user to authenticate through their university Single Sign-On before they can access the platform. SSO ties every account to a verified, active student on record with their institution. That one requirement changes everything. When your real university identity is attached to every transaction, accountability is no longer optional. There are no throwaway accounts. There are no anonymous sellers. The fraud that thrives on every other platform cannot survive inside SELT. We also solve the proof of quality problem. Scam listings rely on stolen photos. SELT is video-first. Every seller records a live walkthrough of their item before it goes live. Buyers see exactly what they are getting, in real time, before any money moves. And because trust cannot depend on manual oversight at scale, our AI moderation agent reviews every video upload automatically, approving safe content and flagging violations before they ever reach the student feed. The system protects the community around the clock without adding operational cost. Every campus in America has this problem. SELT is built to solve it at all of them. We are not filling a gap in an existing market. We are building the market that should have existed the moment students started trading with strangers online.