402rates.com
x402Grade BLast checked 3 hours ago
GET https://api.402rates.com/v1/settlement/costs
Measured USDC transfer costs on Base, Polygon, Arbitrum, Ethereum and XDC: simulated gas, current token prices, fresh chain heads and applicable rollup L1 fees. Inputs and block references accompany each figure. Cheapest first; unmeasurable chains are excluded, not estimated. Business/professional use only. Terms: https://402rates.com/data-terms/
Price$0.01per price or market lookup · paid in USD on Base
Uptime100%
4/4 probes · 677.5 ms
Score76Grade B
Paid usage, 30 days3payers · 3 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 GET "https://api.402rates.com/v1/settlement/costs"
# 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 10:01 | Valid 402 | 402 | 788 ms | $0.01 |
| 2026-10-11 05:30 | Valid 402 | 402 | 628 ms | $0.01 |
| 2026-10-11 01:00 | Valid 402 | 402 | 700 ms | $0.01 |
| 2026-10-10 20:45 | Valid 402 | 402 | 655 ms | $0.01 |
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