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ChainRead Multicall Balances
x402
ChainRead Multicall Balances is a paid API for AI agents from chainread.imac2014ville.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-10).
Fetches native ETH or ERC-20 token balances for up to 20 addresses in a single call on Base or Ethereum mainnet
Price / call$0.005
Success—
StatusUnknown
How this service works
Cheap EVM read utilities for AI agents on Base and Ethereum mainnet: gas and fees, blocks, balances, ERC-20 metadata, contract inspection, transaction status, ENS/Basename resolution, bulk balances. No API key: pay USDC on Base per call via x402.
Output
Returns a JSON object with ok=true, the asset symbol and decimals, the chain queried, the count of addresses, the total aggregated balance as a string, and an array of per-address balance objects each containing the address and its individual balance.
Example use cases
Portfolio aggregate balance check
“I have a list of 5 wallet addresses — can you look up how much ETH each one holds on Base and give me the grand total across all of them?”
DAO treasury multi-wallet audit
“We have 8 treasury wallet addresses on Ethereum mainnet. Can you fetch the USDC balance for each one and sum them up so I can see total DAO holdings?”
Airdrop eligibility snapshot
“I need to check whether these 15 addresses hold any of our ERC-20 token at 0xTokenAddress on Base — fetch all their balances at once and show me which ones have more than zero.”
Technical details
Endpoint
GEThttps://chainread.imac2014ville.workers.dev/multicall-balances?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to query balances for multiple addresses (up to 20) in a single API call on Base or Ethereum mainnet, avoiding multiple round-trips. It is especially useful for portfolio aggregation, airdrop snapshots, treasury monitoring, or any scenario requiring both per-address and total balances for native ETH or any ERC-20 token. Prefer over single-address lookups when batching 2–20 addresses; prefer over full indexers when you only need balance data without transaction history.
Side effects
- Missing required 'addresses' query parameter returns an error
- More than 20 addresses supplied may be rejected or truncated
- Invalid ERC-20 token contract address returns an error or zero balances
- Unsupported chain value (not 'base' or 'ethereum') returns an error
- Payment failure via x402/USDC results in 402 response and no data
- RPC node unavailability may cause intermittent failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"asset": {
"symbol": "USDC",
"decimals": 6
},
"chain": "base",
"count": 2,
"total": "1234.5",
"balances": [
{
"address": "0x4200000000000000000000000000000000000006",
"balance": "1000"
}
]
}
}Tags
x402
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