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​
Parameters

​
chainId
string
default:"starknet-sepolia"
required
Unique identifier for a blockchain network.
​
id
number
default:1
required
Request identifier used to match responses.
​
jsonrpc
string
default:"2.0"
required
JSON-RPC version.
​
method
string
default:"starknet_estimateMessageFee"
required
JSON-RPC method name.
​
params
object
Parameters for starknet_estimateMessageFeePositional parameters for starknet_estimateMessageFee:
  • params[0]: Message from L1 object
  • params[1]: Block identifier object

​
Returns

​
result
object
Estimated fee for processing the l1_handler transaction
curl --request POST \
  --url https://api.uniblock.dev/uni/v1/json-rpc?chainId=starknet-sepolia \
  --header 'content-type: application/json' \
  --data '{
    "id": 1,
    "jsonrpc": "2.0",
    "method": "starknet_estimateMessageFee",
    "params": [
      {},
      {}
    ]
  }'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "from_address": "FROM_ADDRESS",
      "to_address": "TO_ADDRESS",
      "entry_point_selector": "ENTRY_POINT_SELECTOR",
      "payload": []
    },
    "latest"
  ]
}