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He fills his grocery cart through AI after reverse engineering the supermarket's API

Reverse engineered his supermarket API and made a custom MCP to automate grocery shopping; now fills his cart through AI.

How it works

  1. He reverse engineers the supermarket's API with an agent's help
  2. Makes a custom connector to automate the shopping
  3. Now fills his cart through AI

Why it’s worth knowing

The supermarket had no public way in, so he built one.

Where it’s from

Summarized from a public post on news.ycombinator.com. See the original ↗

Upgraded prompt

A ready-to-use prompt for this idea, built from research on what makes AI agents do the job right: who the AI should be, the exact steps, and a check to make sure it was done the way you wanted.

1Who the AI should be
2The prompt, with the steps
3The check when it’s done
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Every idea is a real post from someone who tried it, summarized in our words, with a link to the original. App names are swapped for plain words.