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Base Erc20 Balance
by base-erc20-balance in Onchain & crypto
x402 APIPassing, checked 2 h ago
ERC20 token balance for a wallet on Base mainnet - balanceOf() and decimals() batched into one Multicall3 round trip.
POST https://x402.agentindex.world/base/erc20-balance
Last 30 days
All checks passedSome failedAll failedNot checked
- Uptime
- 100%
- Response time
- 46 ms typical, 46 ms slowest 5%
- Last check
- 2 h ago
- Next check
- any minute now
How to call it
# See the payment challenge (nothing is charged)
curl -i -X POST "https://x402.agentindex.world/base/erc20-balance" \
-H "content-type: application/json" \
-d '{"token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","wallet":"0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d"}'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%2Fbase%2Ferc20-balance
const res = await pay("https://x402.agentindex.world/base/erc20-balance", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({"token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","wallet":"0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d"}),
});
console.log(await res.json());Example input
{
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"wallet": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d"
}Example output
{
"balance": 0.027892,
"balance_raw": "27892",
"decimals": 6,
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"wallet": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d"
}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 |
|---|---|---|---|---|
| 2 h ago | Passed | 402 | 46 ms | $0.003 |
| 7 h ago | Passed | 402 | 56 ms | $0.003 |