x402 Wallet Balance Lookup
x402Grade BLast checked 49 min ago
GET https://x402tap.com/api/wallet-balance
Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism)
Price$0.01per chain read · paid in USD on Base
Uptime100%
3/3 probes · 304 ms
Score73Grade B
Paid usage, 30 days1payers · 2 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://x402tap.com/api/wallet-balance"
# 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 10:46 | Valid 402 | 402 | 234 ms | $0.01 |
| 2026-10-11 06:30 | Valid 402 | 402 | 401 ms | $0.01 |
| 2026-10-11 02:00 | Valid 402 | 402 | 304 ms | $0.01 |
| 2026-10-10 21:45 | Valid 402 | 402 | 252 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