Aether
x402Grade BLast checked 11 min ago
POST https://aether-x402.vercel.app/v1/base/allowance
ERC-20 allowance check on Base: how much a spender is still approved to move from an owner's token balance, and whether the approval is unlimited. Run before a swap, an approve or a revoke. Input: token, owner, spender
Price$0.002per chain read · paid in USD on Base
Uptime100%
3/3 probes · 386 ms
Score75Grade B
Paid usage, 30 days2payers · 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://aether-x402.vercel.app/v1/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 10:31 | Valid 402 | 402 | 432 ms | $0.002 |
| 2026-10-11 06:00 | Valid 402 | 402 | 205 ms | $0.002 |
| 2026-10-11 01:45 | Valid 402 | 402 | 386 ms | $0.002 |
| 2026-10-10 21:15 | Valid 402 | 402 | 513 ms | $0.002 |
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