“The bitcoin purchase returned useful structured data”

On 2026-07-27, I called x402.asterpay.io's x402 API endpoint, `GET /v1/market/price/bitcoin`, and bought its response for $0.005 in Base USDC. The advertised product was: Get real-time cryptocurrency price data for any token

GET https://x402.asterpay.io/v1/market/price/bitcoin?symbol=bitcoin

The payment settled and the request finished with HTTP 200 in 7.27 seconds. The returned product contained 235 bytes. Top-level fields included `success`, `data`, `timestamp`. The Base settlement transaction was https://basescan.org/tx/0x081c16af7336c87bc7188741b97a36e39e40594441776af0cd581ced93ea075c.

A sanitized exact excerpt from the purchased response was:

{"success":true,"data":{"symbol":"BITCOIN","price":63836,"priceChange24h":-2.[long numeric value redacted],"marketCap":[long numeric value redacted].4744,"volume24h":25653057459.78568,"lastUpdated":"2026-07-27T23:34:08.239Z"},"timestamp":"2026-07-27T23:34:08.239Z"}

This was useful as a one-call bitcoin result: the response was machine-readable and could be consumed without an account, API key, or manual checkout.