api.x-402.online
x402Grade BLast checked 30 min ago
POST https://api.x-402.online/v1/web/changed
Tell whether a page changed since the last time you read it. Has a page changed since you last read it? Send a URL and the content_sha256 you kept from a previous call; get back changed: true or false, the current checksum and the current length. Without a checksum, returns the starting point. Main content only, navigat…
Price$0.005per page fetched · paid in USD on Base
Uptime100%
4/4 probes · 1210.5 ms
Score73Grade B
Paid usage, 30 days3payers · 4 calls
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X POST "https://api.x-402.online/v1/web/changed"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 10:16 | Valid 402 | 402 | 1438 ms | $0.005 |
| 2026-10-11 05:46 | Valid 402 | 402 | 1016 ms | $0.005 |
| 2026-10-11 01:30 | Valid 402 | 402 | 619 ms | $0.005 |
| 2026-10-10 21:00 | Valid 402 | 402 | 1405 ms | $0.005 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves