Uniswap · Schema

Encode4337Request

Request body for encoding an ERC-4337 UserOperation.

BlockchainCryptocurrencyDeFiDecentralized ExchangeLiquiditySwaps

Properties

Name Type Description
calls array Batch of transactions to encode into the UserOperation.
sender object Smart account address that will execute the operation.
chainId object
paymasterUrl string JSON-RPC URL of a paymaster service for gas sponsorship.
paymasterServiceContext object Opaque context forwarded to the paymaster (e.g. `{ "policyId": "..." }`).
eip7702Auth object
View JSON Schema on GitHub

JSON Schema

uniswap-encode4337-request-schema.json Raw ↑ 
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/uniswap/refs/heads/main/json-schema/uniswap-encode4337-request-schema.json",
  "title": "Encode4337Request",
  "description": "Request body for encoding an ERC-4337 UserOperation.",
  "type": "object",
  "properties": {
    "calls": {
      "type": "array",
      "description": "Batch of transactions to encode into the UserOperation.",
      "items": {
        "$ref": "#/components/schemas/TransactionRequest5792"
      },
      "minItems": 1
    },
    "sender": {
      "$ref": "#/components/schemas/Address",
      "description": "Smart account address that will execute the operation."
    },
    "chainId": {
      "$ref": "#/components/schemas/ChainId"
    },
    "paymasterUrl": {
      "type": "string",
      "format": "uri",
      "description": "JSON-RPC URL of a paymaster service for gas sponsorship."
    },
    "paymasterServiceContext": {
      "type": "object",
      "description": "Opaque context forwarded to the paymaster (e.g. `{ \"policyId\": \"...\" }`)."
    },
    "eip7702Auth": {
      "$ref": "#/components/schemas/Eip7702Authorization"
    }
  },
  "required": [
    "calls",
    "sender",
    "chainId"
  ]
}