🔵 Base
eth_call

⚙️ eth_call RPC Method (Base Chain)

The eth_call method lets you run a smart contract function locally without broadcasting a transaction or spending gas.
It's read-only — great for checking token balances, estimating results, or debugging your contracts before sending a real tx.

🔁 Returns

"data" — the return value of the function you called (encoded as hex)"

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🔧 Parameters

1. Transaction Call Object (Required)

An object that defines the simulated transaction:

FieldDescription
from (optional)Address you're simulating the call from.
toContract address you're calling.
gas (optional)Max gas limit to use for execution. Required in some edge cases.
gasPrice (optional)Gas price to simulate with.
value (optional)ETH to send with the call.
data (optional)Encoded method signature and parameters. ABI docs (opens in a new tab)

2. Block Parameter (Required)

Tells the node at what block state to simulate the call. Acceptable values:

🛰️ Request

POST https://base-mainnet.chainnodes.org/YOUR-API-KEY

💡 Example

💡

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curl https://base-mainnet.chainnodes.org/YOUR-API-KEY \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"from": "0x47ac0Fb4F2D84898e4D9E7b4DaB3C24507a6D503","to": "0xdAC17F958D2ee523a2206206994597C13D831ec7","gas": "0x92c0","gasPrice": "0x7896e72a000","value": "0x0","data": "0x70a0823100000000000000000000000047ac0fb4f2d84898e4d9e7b4dab3c24507a6d503"}, "latest"],"id":1}'

📦 Response Body

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x000000000000000000000000000000000000000000000000000470de54da7138"
}
eth_blockNumbereth_callMany