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ERC20 Token Balance Lookup
x402
ERC20 Token Balance Lookup is a paid API for AI agents from apexfaucet.xyz, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-27).
Returns the ERC-20 token balance for a given wallet address on Ethereum, Base, Arc, or BNB Chain
Price / call$0.001
Success—
StatusUnknown
How this service works
Free APEX on X1, and free USDC plus APEX on Arc, three times a day. No gas, no sign-up. Plus a swap, a screener, APEX City and token checks.
Output
Returns a JSON object with ok status, and a data object containing the human-readable balance (with decimals applied), the raw integer balance, token name, symbol, decimals, the chain queried, the block number and timestamp at which the balance was read, plus the wallet and token contract addresses. Also includes the amount paid for the API call.
Example use cases
DeFi portfolio balance checker
“Check how much USDC the wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 holds on Base — use the USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.”
Token airdrop eligibility verification
“I need to verify whether wallet 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B holds any of the APEX token at contract 0x52A8845DF664D76C69d2EEa607CD793565aF42B8 on Ethereum — what's their balance?”
Cross-chain wallet monitoring
“Can you look up the balance of token 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E for wallet 0x1234567890abcdef1234567890abcdef12345678 on BNB Chain?”
Technical details
Endpoint
GEThttps://apexfaucet.xyz/api/x402/evm-token-balance?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, cheap ($0.001) on-chain ERC-20 token balance lookup across Ethereum, Base, Arc, or BNB Chain without setting up your own RPC infrastructure. Ideal for agents that need real-time wallet token holdings as part of DeFi workflows, portfolio checks, or eligibility verification.
Side effects
- Invalid wallet address format (must be 0x + 40 hex chars) returns an error
- Invalid token contract address format returns an error
- Unsupported chain name returns an error
- Token contract does not exist on specified chain may return zero balance or error
- Network timeout or RPC node failure may return a non-ok response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"data": {
"type": "object"
},
"paid": {
"type": "number"
}
}
},
"example": {
"ok": true,
"data": {
"ok": true,
"raw": "37192124",
"name": "USD Coin",
"block": 26184706,
"chain": "ethereum",
"token": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"symbol": "USDC",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"balance": "37.192124",
"decimals": 6,
"blockTime": "2026-10-13T16:16:23.000Z"
},
"paid": 0.001
}
}Tags
x402
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