canary.countersignpay.com
x402Grade BLast checked 3 hours ago
GET https://canary.countersignpay.com/v1/base/head
Current Base mainnet block height and base fee per gas in wei, read from the chain at request time
Price$0.01per chain read · paid in USD on Base
Uptime100%
4/4 probes · 216.5 ms
Score79Grade B
Paid usage, 30 days6payers · 9 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://canary.countersignpay.com/v1/base/head"
# 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 09:46 | Valid 402 | 402 | 176 ms | $0.01 |
| 2026-10-11 05:15 | Valid 402 | 402 | 98 ms | $0.01 |
| 2026-10-11 01:00 | Valid 402 | 402 | 257 ms | $0.01 |
| 2026-10-10 20:30 | Valid 402 | 402 | 483 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