Unit pricing for food delivery

You pay 3 times for food.

The food, the fees, and the difference to the cheapest option. Supermarkets have to show the price per kilo and per litre; delivery apps sell the same food without it. UPAY3FOOD adds it to every iFood menu, outlines the item worth buying and takes you to it.

In Portuguese, “Você paga 3 vezes pela comida”: the name is the story.

Install the extension Plug in your agent

No login
No private APIs
Never orders or pays on its own

How it works

Everything it does →

1 · Reads the shop’s menuNo login, no private API: only what is on your screen. Ranks it by unit price: per litre, per 100 g, per person.
2 · Outlines what is worth itOutlines, on iFood itself, the best item per litre and the one the agent picked for your request.
3 · Checks the bagFood, fees and the difference read from the page and checked against the total. Nothing is clicked for you.

Any food, one unit price

per 100 g of meatBurgersPatty grams read from the title; what a combo charges for its fries and drink.
per litreDrinksCans, bottles and packs compared within their kind: soda with soda, beer with beer.
per 100 gDishes sold by weightMarmitas, pokes, salads and bowls; 1 kg packs kept apart.
per 100 mlFood sold by volumeAçaí, broths and ice cream by size, so the bigger cup shows what it saves; tubs apart.
per personDishes to share“Serves 2” and up: the price, with fees, split per person.
the 3 layersAny orderFood, fees and the difference, and how much of the product the fees are worth.

For agents · MCPYour Claude or ChatGPT, with the real price of delivery.upay3food.com/api/mcpTransparency · SolanaThe calculation rules, anchored on mainnet.A hash of the methodology and the code that anyone can verify.

Example · one real shop: Maranata Açaí, São Paulo · 2026-10-10

One menu, 32 items, one calculation.

The extension read this shop’s menu as it appears on screen, without login. The same engine that runs in the extension and the MCP server computes the numbers below, live, every time this page loads.

+94%more per litre for the dearest açaí than for the cheapest, in the same shop.

175 mlof the 700 ml bowl is what the fees (R$7.98) are worth. You pay for açaí that never arrives.

32items read from the page: price, struck-through price, size and servings.

Price per litre, same shopItems with the same size and price grouped · menu price, before fees

700 ml · R$30.00best per litreMarmitex de Açaí 700ml (Hits)R$42.90/L
700 ml · R$31.99Marmitex de Açaí 700mlR$45.70/L
300 ml · R$19.994 options, e.g. Açaí + 2x Leite em Pó + 2x Leite Condensado 300mlR$66.60/L
300 ml · R$20.993 options, e.g. Açaí + 2x Uvas Verdes + 2x Leite Condensado 300mlR$70.00/L
300 ml · R$24.998 options, e.g. Monte o seu Açaí 300ml + 4 acompanhamentosR$83.30/L

Source: the page text, sanitized and versioned in packages/domain/src/__fixtures__/maranata-menu-text.txt. Menu prices are estimates until the bag confirms them. How we prove the rule doesn’t change →

Private funding · Solana

Your USDC, shielded before you pay.

USDC leaves the Cloak shielded pool, not your wallet. Pix itself is not private: what we hide is your wallet. Paying the order’s Pix with USDC switches on once a licensed partner is in place.

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