base-allowance
x402Grade BLast checked 2 hours ago
POST https://x402.agentindex.world/base/allowance
ERC20 allowance on Base mainnet via RPC: how much a spender is approved to move from an owner balance, read with allowance(owner,spender) eth_call.
Price$0.003per chain read · paid in USD on Base
Uptime100%
4/4 probes · 578 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 POST "https://x402.agentindex.world/base/allowance"
# 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 | 135 ms | $0.003 |
| 2026-10-11 05:45 | Valid 402 | 402 | 1049 ms | $0.003 |
| 2026-10-11 01:15 | Valid 402 | 402 | 655 ms | $0.003 |
| 2026-10-10 20:45 | Valid 402 | 402 | 501 ms | $0.003 |
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