Skip to main content
POST
pm_sponsorUserOperation
curl --request POST \
  --url https://rpc.etherspot.io/paymaster/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "method": "pm_sponsorUserOperation",
  "params": [
    {
      "sender": "<string>",
      "nonce": "<string>",
      "initCode": "<string>",
      "callData": "<string>",
      "callGasLimit": "<string>",
      "verificationGasLimit": "<string>",
      "preVerificationGas": "<string>",
      "maxPriorityFeePerGas": "<string>",
      "maxFeePerGas": "<string>",
      "paymasterAndData": "<string>",
      "signature": "<string>"
    }
  ],
  "id": 123
}
'
Example values you use to demo the API: 
{
  "jsonrpc": "2.0",
  "method": "pm_sponsorUserOperation",
  "params": [
    {
      "sender":"0xb341FEAFaF71b09089d03B7D114599f8F491EE45",
      "nonce":"0x0",
      "initCode":"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",
      "callData":"0x5194544700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
      "callGasLimit":"0x0",
      "verificationGasLimit":"0x0",
      "preVerificationGas":"0x0",
      "maxPriorityFeePerGas":"0x3b9aca00",
      "maxFeePerGas":"0x7a5cf70d5",
      "paymasterAndData":"0x",
      "signature":"0x00000000fffffffffffffffffffffffffffffff0000000000000000000000000000000007aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa1c"
    },
    "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    { "mode": 'sponsor' }
  ],
  "id": 1
}
Example response: 
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "paymasterAndData": "0x26fec24b0d467c9de105217b483931e8f944ff500000000000000000000000000000000000000000000000000000000066ebe8b80000000000000000000000000000000000000000000000000000000066ebceb4b5b1df6daf753a0017ac66af78cf10aad42803f86efceff5db656890034e588e10c33ca89eab9ecaef9f0188303b3a3674299fc5208684f9d4de7f34202df1521c",
    "verificationGasLimit": "0xe967",
    "preVerificationGas": "0x18810",
    "callGasLimit": "0x28ede",
  }
}

Query Parameters

​
apiKey
string

Arka API key

​
chainId
string

Chain ID

Body

application/json

sponsor the given userOp and return the paymaster data

​
jsonrpc
enum<string>
default:2.0
required
Available options:
2.0
​
method
enum<string>
default:pm_sponsorUserOperation
required
Available options:
pm_sponsorUserOperation
​
params
object · string · object[]
required
Required array length: 3 elements

User Operation

​
id
integer
required

Response

200

Successful operation