Get Wallet Balance (Native)
Check a wallet's native token balance (ETH, MATIC, BNB, AVAX, etc.). Returns both the raw amount and a human-readable value. Works on any EVM chain.
Catalog action EVM Onchain
Check a wallet's native token balance (ETH, MATIC, BNB, AVAX, etc.). Returns both the raw amount and a human-readable value. Works on any EVM chain.
At a Glance
| Field | Value |
|---|---|
| Action ID | get-native-balance |
| Category | EVM Onchain |
| Connector | Not required |
| Requires gas | No |
| Funds movement | None declared |
| Tags | blockchain, evm, native, balance, query, read, eth, matic, wallet, gas |
Payload Schema
| Field | Type | Required | Description |
|---|---|---|---|
accountAddress | string | Yes | Address to check balance for |
chainId | number | Yes | Chain ID (1=Ethereum, 137=Polygon, 56=BSC, 8453=Base, etc.) |
Result Schema
| Field | Type | Required | Description |
|---|---|---|---|
balance | string | Yes | Balance in wei |
formattedBalance | string | Yes | Human-readable balance in native units (ETH, MATIC, etc.) |
accountAddress | string | No | - |
chainId | number | No | - |
symbol | string | No | Native token symbol (ETH, MATIC, BNB, etc.) |
blockNumber | number | No | - |
Examples
json{ "type": "get-native-balance", "payload": { "accountAddress": "0x0000000000000000000000000000000000000000", "chainId": 8453 }, "children": []}
bashcurl -X POST "https://api.b3os.org/v1/actions/get-native-balance/test" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "inputs": { "accountAddress": "0x0000000000000000000000000000000000000000", "chainId": 8453 }}'
Payload fields can use workflow expressions such as {{$trigger.body.amount}}, {{$nodes.fetch.result.price}}, and {{$props.asset}} when the value should come from a trigger, prior node, or reusable workflow prop.