Wallet balance (native + ERC-20)
x402Grade CLast checked 4 hours ago
POST https://agent402.tools/api/wallet-balance
Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol and contract - ready to display in a UI or feed into a portfolio tool.
Price$0.002per chain read · paid in USD on Solana
Uptime100%
4/4 probes · 131 ms
Score63Grade C
Paid usage, 30 days0payers · 0 calls
Warnings
Wallet mismatch The payout wallet in its live payment answer differs from its catalogue listing on the same network.
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://agent402.tools/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 08:30 | Valid 402 | 402 | 129 ms | $0.002 |
| 2026-10-11 04:00 | Valid 402 | 402 | 270 ms | $0.002 |
| 2026-10-10 23:30 | Valid 402 | 402 | 133 ms | $0.002 |
| 2026-10-10 18:15 | Valid 402 | 402 | 72 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