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Wallet Balance
by wallet-balance-checker in Onchain & crypto
x402 APIPassing, checked 59 min ago
Read native coin and USDC balances for any EVM wallet on Base, Ethereum, Polygon, Arbitrum or Optimism, with atomic amounts and current block. No RPC key or account. Try GET /wallet-balance/sample.
GET https://x402.agentindex.world/wallet-balance
Last 30 days
All checks passedSome failedAll failedNot checked
- Uptime
- 100%
- Response time
- 76 ms typical, 76 ms slowest 5%
- Last check
- 59 min ago
- Next check
- any minute now
How to call it
# See the payment challenge (nothing is charged)
curl -i -X GET "https://x402.agentindex.world/wallet-balance?address=0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d&network=base"import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";
const client = new x402Client().register(
"eip155:8453",
new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);
// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402.agentindex.world%2Fwallet-balance
const res = await pay("https://x402.agentindex.world/wallet-balance?address=0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d&network=base");
console.log(await res.json());Example input
{
"address": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d",
"network": "base"
}Example output
{
"address": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d",
"block_number": 51500000,
"native": {
"balance": 0.001,
"balance_wei": "1000000000000000",
"symbol": "ETH"
},
"network": {
"caip2": "eip155:8453",
"key": "base",
"name": "Base"
},
"usdc": {
"balance": 1.25,
"balance_atomic": "1250000",
"contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"decimals": 6
}
}Security scan
- No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 59 min ago | Passed | 402 | 76 ms | $0.001 |
| 6 h ago | Passed | 402 | 248 ms | $0.001 |