Onchain Query API
x402Grade BLast checked 3 hours ago
GET https://chain.cyberwarex.com/block
Latest block on any major EVM chain: block number, timestamp, age in seconds, base fee and gas used/limit. The cheapest possible liveness and chain-tip check for an agent: confirm a chain is progressing, timestamp an observation, or pick a block for a query.
Price$0.001per chain read · paid in USD on Base
Uptime100%
4/4 probes · 1770 ms
Score74Grade B
Paid usage, 30 days7payers · 47 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://chain.cyberwarex.com/block"
# 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 08:00 | Valid 402 | 402 | 1854 ms | $0.001 |
| 2026-10-11 03:30 | Valid 402 | 402 | 1899 ms | $0.001 |
| 2026-10-10 23:00 | Valid 402 | 402 | 1686 ms | $0.001 |
| 2026-10-10 17:15 | Valid 402 | 402 | 1204 ms | $0.001 |
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