# MarketCart CI > Cart parity checks for Shopify stores on Dawn-family themes. A real browser adds a product, then MarketCart CI compares the cart Shopify stored (/cart.js) with what the shopper sees (cart drawer or cart page): variant, quantity, line price, badge, total and the currency of the market the session actually got. JSON result plus exit code for CI. Open-source CLI and GitHub Action; hosted runs EUR 19 per 100 completed cases. ## Docs - [Full text for LLMs](https://marketcart-ci.pages.dev/llms-full.txt): architecture, CLI/Action usage, JSON input/output, limits, pricing - [Repository and quickstart](https://github.com/paolomangiadev/marketcart-ci) - [Benchmark: 20 cases expected vs actual](https://marketcart-ci.pages.dev/#benchmark) - [Competitor matrix](https://marketcart-ci.pages.dev/#competitors) ## Product - [Buy 100 hosted cases (EUR 19)](https://payhip.com/b/er1iY) - [Hosted API health](https://marketcart-ci.pages.dev/v1/health) ## Optional - [Synthetic fixture store](https://marketcart-fixture.pages.dev)