# Eth\_getBalance

## Get ETH Balance of an Address

> Retrieves the balance (in wei) of a given Ethereum address.\
> You can specify the block parameter to get the balance at a specific block.<br>

```json
{"openapi":"3.0.0","info":{"title":"Ethereum JSON-RPC","version":"1.0.0"},"servers":[{"url":"https://zksync.nownodes.io"}],"security":[{"api-keyAuth":[]}],"components":{"securitySchemes":{"api-keyAuth":{"type":"apiKey","in":"header","name":"api-key"}}},"paths":{"/":{"post":{"tags":["eth_getBalance"],"summary":"Get ETH Balance of an Address","operationId":"ethGetBalance","description":"Retrieves the balance (in wei) of a given Ethereum address.\nYou can specify the block parameter to get the balance at a specific block.\n","requestBody":{"required":true,"content":{"application/json":{"schema":{"type":"object","required":["jsonrpc","method","params","id"],"properties":{"jsonrpc":{"type":"string","description":"JSON-RPC version"},"method":{"type":"string","description":"JSON-RPC method name"},"params":{"type":"array","minItems":2,"maxItems":2,"description":"Array with 2 parameters:\n  1. Address (20-byte hex string with '0x' prefix)\n  2. Block tag (e.g., 'latest', 'earliest', 'pending', or block number in hex)\n","items":{"type":"string"}},"id":{"type":"integer","description":"Request ID"}}}}}},"responses":{"200":{"description":"Balance (in wei) as hex string","content":{"application/json":{"schema":{"type":"object","properties":{"jsonrpc":{"type":"string","description":"JSON-RPC version"},"id":{"type":"integer","description":"Same ID as in request"},"result":{"type":"string","description":"Balance in wei as hexadecimal string.\nExample: \"0x0234c8a3397aab58\" = 158972490234375000 in decimal.\n"}}}}}}}}}}}
```