eth_sendUserOperation

Please refer to 1Balance & Relay to create a sponsorApiKey.

The maxFeePerGas and paymasterAndData fields must be zero to avoid on-chain EntryPoint fee payments. This decreases overhead and leads to gas savings.

See Advantages & Highlights.

eth_sendUserOperation

post

Sends a UserOperation to the specified network.

Path parameters

chainIdnumberrequired

Target network chain identifier.

Query parameters

sponsorApiKeystringrequired

1Balance API key which covers transaction costs.

retriesnumber · default: 5optional

Number of times to retry failing transactions.

Body

idnumberoptional

jsonrpcstring · default: "2.0"optional

methodstring · default: "eth_sendUserOperation"optional

paramsone of[] · min: 2 · max: 2optional

1. Object - The UserOperation object
2. String - The EntryPoint address the request should be sent through. This MUST be one of the entry points returned by the eth_supportedEntryPoints rpc call.

Responses

application/json

application/json

cURL

JavaScript

Python

HTTP

cURL

curl -L \
  --request POST \
  --url 'https://api.gelato.digital/bundlers/{chainId}/rpc?sponsorApiKey=text' \
  --header 'Content-Type: application/json' \
  --data '{
    "id": 1,
    "jsonrpc": "text",
    "method": "text",
    "params": [
      {
        "sender": "text",
        "nonce": "text",
        "initCode": "text",
        "callData": "text",
        "signature": "text",
        "paymasterAndData": "text",
        "callGasLimit": "text",
        "verificationGasLimit": "text",
        "preVerificationGas": "text",
        "maxFeePerGas": "text",
        "maxPriorityFeePerGas": "text"
      }
    ]
  }'

application/json

200

400

200

{
  "id": 1,
  "jsonrpc": "text",
  "result": "text"
}

Successful response