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chain-native-balance
x402
chain-native-balance is a paid API for AI agents from chain.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Returns the live native coin balance (ETH, POL, BNB, etc.) of any wallet or contract address on Base and other EVM chains.
Price / call$0.01
Success—
StatusUnknown
How this service works
Native coin balance (ETH/POL/BNB) of any address, read live from the chain. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.
Output
Returns the live native coin balance of the queried address on the specified EVM chain, expressed in the chain's native currency (e.g. ETH on Ethereum/Base/Arbitrum/Optimism, POL on Polygon, BNB on BSC). Data is read directly from the chain in real time.
Example use cases
DeFi portfolio native balance check
“Can you check the current ETH balance of 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base — I want to know if they have enough to cover gas fees?”
Cross-chain balance monitoring
“Look up the native balance for address 0xAbCd1234...5678 on both Arbitrum and Optimism — I want to see which chain they're most active on.”
Smart contract ETH holdings check
“How much ETH is currently held by this contract address 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 on Ethereum mainnet?”
Technical details
Endpoint
GEThttps://chain.intel.rallylive.ca/chain/balance?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a real-time, live on-chain native coin balance (ETH/POL/BNB) for any EVM-compatible address across Base, Ethereum, Arbitrum, Optimism, Polygon, or BSC. Prefer this over general wallet-profile endpoints when you only need the raw native balance and not a full wallet analysis. It is the lightest and cheapest call for a single balance lookup at $0.01 per call.
Side effects
- Invalid or malformed address format returns an error
- Unsupported chain prefix returns an error or falls back to Base
- Address with no activity may return a zero balance
- Network congestion or RPC issues may cause delayed or failed reads
- Payment of $0.01 USDC required per call; insufficient payment returns a 402 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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