api.x-402.online
x402Grade FLast checked 1 hour ago
GET https://api.x-402.online/v1/chain/balance
Get ETH, USDC and up to ten ERC-20 balances of one address in a single call, human-readable. ETH plus USDC plus up to ten ERC-20 balances of one address in a single call, decimals resolved, amounts human-readable. Base mainnet. Query: ?address=0x…&tokens=0x…,0x…
Price$0.005per chain read · paid in USD on Base
Uptime0%
0/4 probes
Score7Grade F
Paid usage, 30 days3payers · 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 GET "https://api.x-402.online/v1/chain/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 10:16 | No valid 402 | 400 | 468 ms | not listed |
| 2026-10-11 05:46 | No valid 402 | 400 | 363 ms | not listed |
| 2026-10-11 01:30 | No valid 402 | 400 | 309 ms | not listed |
| 2026-10-10 21:00 | No valid 402 | 400 | 239 ms | not listed |
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