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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 bluebirds.ccwu.cc:8443, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Fetches the current ERC-20 token balance for a given wallet address on Base or Ethereum, returning raw amount, formatted balance, symbol, and 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 containing: the raw token balance as an integer string (e.g. '12500000'), the formatted human-readable balance (e.g. '12.5'), the token symbol (e.g. 'USDC'), and the number of decimals used by the token contract (e.g. 6).
Example use cases
Check portfolio USDC balance on Base
“How much USDC does the wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 currently hold on Base? Use the USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.”
Verify payment received before order fulfillment
“Before I ship the order, can you confirm that wallet 0xAbCd1234...5678 has received at least 50 USDC on Ethereum? The USDC contract is 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48.”
Monitor treasury token balance for reporting
“What is the current DAI balance of our treasury wallet 0x1234...abcd on Ethereum? DAI contract is 0x6B175474E89094C44Da98b954EedeAC495271d0F — I need the formatted number for our weekly report.”
Technical details
Endpoint
GEThttps://bluebirds.ccwu.cc:8443/v1/chain/erc20-balance?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, pay-per-call ERC-20 token balance lookup on Base or Ethereum without setting up an API key or account. It is ideal for agents that only occasionally need on-chain balance data and want a serverless, no-registration path. It returns both raw and formatted balances in a single call, saving downstream formatting work.
Side effects
- Invalid EVM address format returns an error
- Unsupported chain value (not 'base' or 'ethereum') causes rejection
- Invalid or non-existent ERC-20 contract address returns an error or zero balance
- Network connectivity issues to the blockchain RPC may cause timeouts
- Payment of 0.002 USDC via x402 required; missing payment returns HTTP 402
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
Reviews
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