UPAY3FOOD
Unit pricing for food delivery: the food, the fees and the difference to the cheapest option.
A browser extension, a public MCP server and on-chain calculation rules that bring supermarket-style unit prices (per 100 g, per litre, per person) to iFood menus. Built for the Colosseum Crypto World's Fair hackathon. Independent project, not affiliated with iFood.
Supermarkets in the EU and Australia must show the price per kilo or litre. Delivery apps sell the same food without it, so fees, sizes and coupons make menu prices impossible to compare. In one real São Paulo shop the dearest item costs 94% more per litre than the cheapest.
A Chrome/Edge/Brave extension that reads the page the user already sees and outlines the item worth buying; a public MCP server (9 tools, no login, stores nothing) so any AI agent can do the same math; and a methodology hashed with SHA-256 and anchored on Solana mainnet, with USDC funding shielded through Cloak.
Submitted to the Colosseum Crypto World's Fair 2026; results pending. Open source (MIT), live at upay3food.com. Paying the order's Pix with USDC is intentionally off until a licensed off-ramp partner exists.
TypeScript · Next.js · Chrome MV3 · MCP · Solana · USDC / Cloak
