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An AI agent bought a real t-shirt by itself for $29.94, no human in the loop

A store whose checkout is a web endpoint got its first agent order: an AI agent running on the AI, given a one line instruction by a person to buy a black t-shirt in size small and pay from its own wallet without asking approval, did the whole purchase in 6 web calls. It paid $29.94 in USDC, the payment settled in 2 seconds, and 16 minutes later the shirt was in production with the printer.

$29.94one time

How it works

  1. A person gives the agent Cairn a one line instruction: buy the black tee in size small, pay with USDC, do not stop to ask
  2. The agent finds the product through the store’s data endpoint
  3. It pays $29.94 through the 402 payment flow in 6 web calls
  4. The payment settles on chain in 2 seconds
  5. The printer puts the shirt into production 16 minutes later

Why it’s worth knowing

A wallet that had never sent a payment bought a physical shirt that is now being printed, with zero humans in the loop.

Where it’s from

Summarized from a public post on forgemesh.io. See the original ↗

Upgraded prompt

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1Who the AI should be
2The prompt, with the steps
3The check when it’s done
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