eth_call - Cronos RPC Method
Execute smart contract calls without creating transactions on Cronos. Essential for reading contract state for DeFi protocols, NFT marketplaces, and Crypto.com ecosystem integrations.
Executes a new message call immediately without creating a transaction on Cronos. Used for reading smart contract state.
Why Cronos? Build on the EVM-compatible Crypto.com blockchain with fast finality and deep Crypto.com ecosystem integration.
Use Cases
The eth_call method is essential for:
- Reading contract state - Query view/pure functions
- Simulating transactions - Test execution without gas costs
- DeFi integrations - Check prices, balances, allowances for DeFi protocols, NFT marketplaces, and Crypto.com ecosystem integrations
- Complex queries - Execute multi-step contract logic
Request Parameters
20-byte address executing the call
20-byte contract address
Gas limit for the call
Gas price in wei
Value to send in wei
Encoded function call data
Block number or tag
Response Body
The return value of the executed contract function
Code Examples
# Call ERC20 balanceOf function
curl -X POST https://api-cronos-mainnet-archive.n.dwellir.com/YOUR_API_KEY \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "eth_call",
"params": [{
"to": "0x5C7F8A570d578ED84E63fdFA7b1eE72dEae1AE23",
"data": "0x70a082310000000000000000000000005C7F8A570d578ED84E63fdFA7b1eE72dEae1AE23"
}, "latest"],
"id": 1
}'Error Handling
| Error Code | Message | Description |
|---|---|---|
| -32000 | Execution reverted | Contract function reverted |
| -32602 | Invalid parameters | Invalid data encoding |
| -32015 | VM execution error | Contract logic error |
Related Methods
eth_estimateGas- Estimate gas for transactioneth_sendRawTransaction- Send actual transaction
eth_sendTransaction
Send a transaction from an unlocked account on Cronos. Requires the node to hold the sender's private key — intended for development and testing only.
eth_getLogs
Query event logs on Cronos. Essential for indexing DeFi protocols, NFT marketplaces, and Crypto.com ecosystem integrations on the EVM-compatible Crypto.com blockchain.