We sell one magnet.
It costs fifty cents. A paid API call returns “you bought a magnet!” and one 🧲. That’s the store. That’s the whole store.
One endpoint. Fifty cents. One magnet.
The store is an API. No account, no API key, no checkout form — payment happens in the request flow.
# 1. Ask to buy — the first, unpaid call returns a 402 payment challenge
curl -X POST https://api.reallybigmagnet.com/buy
# 2. Settle the challenge: $0.50 via x402 (Base USDC), MPP, or card
# 3. Retry with the payment proof attached. The response is your magnet:
# {"message":"you bought a magnet!","magnet":"🧲"}Humans: the 402 payment challenge includes a hosted card checkout option if you would rather pay in a browser. Full API details: openapi.json.
Small purchase, real purchase
Own a magnet
The primary use case. Fifty cents buys you the message "you bought a magnet!" and one 🧲. Some things are worth exactly that.
Test pay-per-use checkout, end to end
One real API, one real product, one real $0.50 charge. If your payment stack can buy the magnet — discovery, 402 challenge, x402/MPP/card settlement, retry — it actually works.
Demo pay-per-use APIs
The buy endpoint speaks the standard flow: unpaid call → 402 payment challenge → settle → retry with proof. A live, minimal reference you can point at in a talk or a README.
Frequently asked questions
What exactly am I buying?
One digital magnet. A paid API call to /buy returns the JSON message "you bought a magnet!" plus one magnet emoji (🧲). No physical product exists or ships. It costs $0.50.
Is it a physical magnet?
No. It is a magnet emoji, delivered instantly in an API response. We are a real store selling a real (digital) product for real money — we just want you to know precisely what the product is.
How do I buy it?
Call POST https://api.reallybigmagnet.com/buy. The first, unpaid call returns a 402 payment challenge; settle it with x402 (Base USDC), MPP, or a card payment of $0.50 and retry with the proof attached. The response is your magnet. No signup or API key.
Can humans buy one?
Yes. Any HTTP client can buy one — call POST /buy and settle the $0.50 payment challenge. The challenge includes a hosted card checkout option if you would rather pay in a browser.
Why fifty cents?
It is a real price for a real purchase — enough to exercise a genuine payment end to end, small enough that nobody has to think about it. Every purchase is one flat $0.50 charge.
Can I buy more than one?
Yes. Each call to /buy is one magnet at $0.50. There is no volume discount, because there is no volume — supply is unlimited.