
📝 @tebrabbit built Thumper for @magicmarkets: a free browser extension that shows when Polymarket isn’t the cheapest place to take a sports position. Quick context: @Polymarket sports prices look clean, but a taker fee lands on top, so the 41¢ you see isn’t the all-in number. The same game is often priced differently on MagicMarkets, and almost nobody checks both. The deal: + drops the @MagicMarkets price into the Polymarket trade box, fee counted on both sides + “better odds” tag when MagicMarkets is cheaper, one click to the same market + side panel: best price, price-move insights, open Polymarket positions re-priced vs MagicMarkets + optional alerts when MagicMarkets is 2¢+ cheaper on a game starting soon Why it fits: sports traders already live on Polymarket. Thumper keeps them there while surface-checking the real all-in price elsewhere. ➜ stops the silent fee gap from eating the edge ➜ turns “I thought 41¢ was the price” into a live comparison before the click 2¢ doesn’t matter once. It matters every weekend. watching whether EPL and in-play users actually switch when the tag shows up. that’s the number that matters. Try here: https://t.co/9iCD9Qki9e #MagicMarkets #Prediction #PredictioMarkets
