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POST
/
95e61622bf6a8af293978377718e3b77
/
jsonrpc
eth_estimateGas
curl --request POST \
  --url https://tron-mainnet.core.chainstack.com/95e61622bf6a8af293978377718e3b77/jsonrpc \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "method": "eth_estimateGas",
  "id": 1,
  "params": [
    {
      "to": "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b",
      "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
      "value": "0x9184e72a"
    }
  ]
}
'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "<string>"
}
TRON API method that estimates the gas required to execute a transaction, providing an Ethereum-compatible interface for accessing TRON blockchain data.
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​
Parameters

  • jsonrpc — the JSON-RPC protocol version (always “2.0”)
  • method — the method name (always “eth_estimateGas”)
  • params — array containing method parameters
    • transaction — transaction object containing to, from, gas, gasPrice, value, and data fields
  • id — request identifier (number or string)

​
Response

  • jsonrpc — the JSON-RPC protocol version (“2.0”)
  • id — the request identifier that matches the request
  • result — the estimated gas amount as hex string

​
Use case

The jsonrpc eth_estimateGas method is used for:
  • Calculating gas requirements before sending transactions through Web3 interfaces
  • Building transaction fee estimation features in wallets and dApps
  • Optimizing gas usage and preventing failed transactions due to insufficient gas
  • Implementing dynamic gas pricing and transaction cost calculations

Body

application/json
​
jsonrpc
string
default:2.0
required
​
method
string
default:eth_estimateGas
required
​
id
integer
default:1
required
​
params
object[]
required

Response

200 - application/json

Estimated gas amount needed for the transaction

​
jsonrpc
string
​
id
integer
​
result
string

The estimated gas amount as hex string

Last modified on April 15, 2026