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ERC-20 Token Balance Lookup (Base/Ethereum)
x402
ERC-20 Token Balance Lookup (Base/Ethereum) is a paid API for AI agents from tpgoose.ccwu.cc:8443, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-22).
Returns the ERC-20 token balance for a given wallet address on Base or Ethereum, including raw amount, symbol, and human-readable balance with decimals.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call website uptime/latency/TLS checks and fetch-to-Markdown, measured from Hub Europe (Germany). USDC on Base via x402. No account or API key.
Output
Returns a JSON object with four fields: 'balance' (human-readable decimal string, e.g. '12.5'), 'raw' (integer string before decimal adjustment, e.g. '12500000'), 'symbol' (token ticker, e.g. 'USDC'), and 'decimals' (integer precision, e.g. 6).
Example use cases
Verify payment eligibility before transaction
“Before I trigger this payment, check whether wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 has at least 50 USDC on Base — the USDC contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.”
Monitor whale wallet token holdings
“Check the current USDC balance for the address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B on Ethereum using the USDC contract 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 — I want to see if it's above 1 million.”
DeFi portfolio snapshot for a user
“Pull the WETH token balance for my wallet 0x1234567890abcdef1234567890abcdef12345678 on Base using contract 0x4200000000000000000000000000000000000006 and tell me the human-readable amount.”
Technical details
Endpoint
GEThttps://tpgoose.ccwu.cc:8443/v1/chain/erc20-balance?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pay-per-call, no-account ERC-20 token balance check on Base or Ethereum and want to avoid API key management. Ideal for agents making occasional on-demand balance lookups without committing to a subscription. Not suited for high-frequency polling or multi-chain batch queries.
Side effects
- Invalid or malformed wallet address returns an error response
- Unsupported chain identifier (not 'base' or 'ethereum') causes a validation failure
- Invalid or non-ERC-20 contract address may return zero balance or an error
- Payment via x402/USDC on Base not settled causes 402 rejection before query executes
- Network or node connectivity issues from the Europe hub may cause timeouts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"raw": "12500000",
"symbol": "USDC",
"balance": "12.5",
"decimals": 6
}
}Tags
x402
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