eth_getBalance - Astar RPC Method
Query account balance on Astar. Essential for wallet applications and cross-chain DeFi, multi-VM smart contracts, and XCM-enabled interoperability with Ethereum and Cosmos on Polkadot's leading dApp hub supporting EVM, WASM, and upcoming PolkaVM environments.
Returns the balance of a given address on Astar.
Why Astar? Build on Polkadot's leading dApp hub supporting EVM, WASM, and upcoming PolkaVM environments with EVM + WASM + PolkaVM support, Build2Earn developer rewards, dApp Staking, and Soneium cross-layer integration.
Use Cases
The eth_getBalance method is essential for:
- Wallet applications - Display user balances
- Transaction validation - Check if account has sufficient funds
- DeFi applications - Monitor collateral and liquidity for cross-chain DeFi, multi-VM smart contracts, and XCM-enabled interoperability with Ethereum and Cosmos
- Account monitoring - Track balance changes over time
Code Examples
Error Handling
| Error Code | Message | Description |
|---|---|---|
| -32602 | Invalid params | Invalid address format or block parameter |
| -32000 | Execution error | Node execution error |
Related Methods
eth_getCode- Get contract bytecodeeth_getTransactionCount- Get account nonce
eth_getBlockReceipts
Return every transaction receipt in a block on Astar. Useful for indexers, analytics pipelines, and event backfills across cross-chain DeFi, multi-VM smart contracts, and XCM-enabled interoperability with Ethereum and Cosmos.
eth_getCode
Get contract bytecode on Astar. Essential for verifying smart contracts for cross-chain DeFi, multi-VM smart contracts, and XCM-enabled interoperability with Ethereum and Cosmos.