BROWSER USE

- Browser Use Agents: give Browser Use a task and receive completed work. API V4 is current for new integrations.
- Browser Infrastructure: connect your agent or automation to managed browsers through SDK, REST, or CDP. Starts at $0.02/browser-hour.
- Developer tools: Open Source, Browser Harness, SDK, and MCP support the two products above.

[Developer Index](https://browser-use.com/index.md)
[Product Map](https://browser-use.com/llms.txt)
[Full Product Context](https://browser-use.com/llms-full.txt)
[Pricing](https://browser-use.com/pricing.md)
[Cloud Docs](https://docs.browser-use.com/cloud/quickstart)
[Open Source Docs](https://docs.browser-use.com/open-source/introduction)

---

# Build the Cheapest Grocery Cart with an AI Agent

## Build the Cheapest Cart

Browser Use picks the lowest unit price for every item and leaves the cart for you to review.

[Run this task free](https://cloud.browser-use.com/?utm_source=showcase&utm_medium=website&utm_campaign=showcase&utm_content=build-the-cheapest-cart)instacart.com

## The prompt

On Instacart, build a cart for \[list of items\]. For each item pick the lowest unit price rather than the lowest sticker price, and stop before checkout so I can review it.

CopySwap the \[bracketed\] parts for your own before running.

Runs on [stealth browsers](https://browser-use.com/stealth-browsers) at $0.02/hour. No card required · [pricing](https://browser-use.com/pricing)

## Why it's hard

Unit price is the number that matters and the one the shelf is designed to hide.

-   Unit pricing shown in different units across brands
-   Multi-buy offers that beat the per-item price
-   Store availability that varies by delivery window

## More shopping & checkout

[See all →](https://browser-use.com/showcase/category/shopping)

### [Add Groceries to My Cart](https://browser-use.com/showcase/add-groceries-to-cart)

### [Find a Local Pizza Deal](https://browser-use.com/showcase/find-local-pizza-deal)

### [Apply a Coupon at Checkout](https://browser-use.com/showcase/apply-working-coupon)

### [Find the Best Shoe Cleaner](https://browser-use.com/showcase/best-shoe-cleaner)

### [Cart the Best-Rated Shoe](https://browser-use.com/showcase/cart-the-best-rated-shoe)

### [Store 12 Pairs](https://browser-use.com/showcase/store-twelve-pairs)