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POST
/
eth_call
curl --request POST \
  --url https://monad-testnet.core.chainstack.com/9c5b265f20b3ea5df4f54f70eb74b800/ \
  --header 'Content-Type: application/json' \
  --data '{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "eth_call",
  "params": [
    {
      "to": "0x760AfE86e5de5fa0Ee542fc7B7B713e1c5425701",
      "data": "0x06fdde03"
    },
    "latest"
  ]
}'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "<string>"
}
Monad API method that executes a new message call immediately without creating a transaction on the blockchain. This is useful for reading data from smart contracts or simulating transactions.
Monad-specific behavior:
  • Calls reliant on old state (with an old block number) may fail, because full nodes do not provide access to arbitrary historic state.
  • Does not accept EIP-4844 (blob) transaction type, as EIP-4844 is not supported on Monad.
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​
Parameters

  • object — the transaction call object:
    • from (optional) — address the transaction is sent from
    • to — address the transaction is directed to
    • gas (optional) — gas provided for the call
    • gasPrice (optional) — gas price for the call
    • value (optional) — value sent with the call
    • data (optional) — hash of the method signature and encoded parameters
  • quantity or tag — integer block number, or the string latest, earliest, or pending

​
Response

  • result — the return value of the executed contract call.

​
eth_call code examples

const { ethers } = require("ethers");

const provider = new ethers.JsonRpcProvider("CHAINSTACK_NODE_URL");

async function callContract() {
  // Call name() on Wrapped Monad (WMON) contract
  const result = await provider.call({
    to: "0x760AfE86e5de5fa0Ee542fc7B7B713e1c5425701",
    data: "0x06fdde03" // name()
  });
  console.log(result);
}

callContract();

​
Use case

A practical use case for eth_call is reading data from smart contracts, such as token balances, contract state variables, or simulating complex transactions before sending them.

Body

application/json
​
id
integer
default:1
​
jsonrpc
string
default:2.0
​
method
string
default:eth_call
​
params
array

Response

200 - application/json

The return value of the executed contract call.

​
jsonrpc
string
​
id
integer
​
result
string