Paymaster

A CandidePaymaster is a class interacts with Candide's ERC-4337 Paymaster API.

Usage

Import

import { CandidePaymaster } from "abstractionkit";

How to use

Initialize a Paymaster with your RPC url. Get an API key from the dashboard

paymaster.ts

import { CandidePaymaster } from "abstractionkit";

const paymasterRpc = "https://api.candide.dev/paymaster/$version/$network/$apikey";

const paymaster: CandidePaymaster = new CandidePaymaster(paymasterRPC);

Then you can consume Paymaster methods:

const paymasterMetaData = await paymaster.getPaymasterMetaData();

Methods

getPaymasterMetaData

Returns the metadata associated with the Paymaster, along with dummyPaymasterAndData useful for gas estimates

Usage

example.ts

example.ts

import { paymaster } from "./paymaster";

const paymasterResult = await paymaster.getPaymasterMetaData();

Response Type

Paramater

Type

paymasterMetadata

PaymasterMetadata Object Key Value Type Description name string Paymaster Name description string A short description for the paymaster service icons string[] icons associated with the paymaster service address string Paymaster Contract Address sponsoredEventTopic string Emmited topic event if a paymaster is being used dummyPaymasterAndData string Dummy value to use for estimating userop gas before sponsorship

Example Response

{
  name: 'Candide Paymaster',
  description: 'Candide Paymaster a fast, secure and feature-rich 4337 Paymaster',
  icons: [],
  address: '0x3fE285DcD76BCcE4Ac92d38A6F2F8E964041e020',
  sponsoredEventTopic: '0xa050a122b4c0e369e3385eb6b7cccd8019638b2764de67bec0af99130ddf8471',
  dummyPaymasterAndData: '0x3fE285DcD76BCcE4Ac92d38A6F2F8E964041e0207ddefa2f027691116d0a7aa6418246622d70b12a0100000000ffff000000000000000000000000000000000000000000000000000000000000ffff000000000000000000000000000000000000000000000000000000000000ffff010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101011c'
}

source code

getPaymasterMetaData

getSupportedERC20TokensAndPaymasterMetadata

Returns the ERC-20 Tokens that the paymaster accepts as gas tokens on the current network, along with its metadata

Usage

example.ts

example.ts

import { paymaster } from "./paymaster.ts";

const result = await paymaster.getSupportedERC20TokensAndPaymasterMetadata();

Response Types

Paramater	Type
tokens	ERC20Token[] Object[] Key Value Type Description symbol string Token Symbol address string Token contract address decimal number Decimals of token fee bigint Gas fee in unit of of the token exchangeRate bigint Exchange rate of token
paymasterMetadata	PaymasterMetadata Object Key Value Type Description name string Paymaster Name description string A short description for the paymaster service icons string[] icons associated with the paymaster service address string Paymaster Contract Address sponsoredEventTopic string Emmited topic event if a paymaster is being used dummyPaymasterAndData string Dummy value to use for estimating userop gas before sponsorship

Example Response

{
  tokens: [
    {
      symbol: 'CTT',
      address: '0xFa5854FBf9964330d761961F46565AB7326e5a3b',
      decimal: 18,
      fee: 0n,
      exchangeRate: 1001219705870085130n
    }
  ],
  paymasterMetadata: {
    name: 'CANDIDE Paymaster',
    description: 'CANDIDE Paymaster a fast, secure and feature-rich 4337 Paymaster',
    icons: [],
    address: '0x3fE285DcD76BCcE4Ac92d38A6F2F8E964041e020',
    sponsoredEventTopic: '0xa050a122b4c0e369e3385eb6b7cccd8019638b2764de67bec0af99130ddf8471',
    dummyPaymasterAndData: '0x3fE285DcD76BCcE4Ac92d38A6F2F8E964041e020Fa5854FBf9964330d761961F46565AB7326e5a3b0100000000ffff000000000000000000000000000000000000000000000000000000000000ffff000000000000000000000000000000000000000000000000000000000000ffff010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101011c'
  }
}

Source code

getSupportedERC20TokensAndPaymasterMetadata

getSupportedEntrypoint

Returns the supported Entrypoints by the paymaster

Usage

example.ts

example.ts

import { paymaster } from "./paymaster";

const paymasterResult = await paymaster.getSupportedEntrypoint();

Response Type

Key	Value Type	Description
entrypoint	string	EntryPoint Address that the paymaster is supporting

Example Response

0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789

source code

getSupportedEntrypoint

isSupportedERC20Token

Checks if a particular ERC-20 token is accepted as gas payment by the paymaster. Returns a boolean

Usage

example.ts

example.ts

import { paymaster } from "./paymaster";

const erc20TokenAddress = "0x7DdEFA2f027691116D0a7aa6418246622d70B12A";

const isSupported = await paymaster.isSupportedERC20Token(erc20TokenAddress);

Param Types

Paramater	Type	Description
Token Address	string	Onchain ERC-20 Token Address

Response Type

Paramater	Type	Description
Checks for support	boolean	Returns true if the ERC-20 token is supported, returns false otherwise

Example Response

true

getSupportedERC20TokenData

Returns the token data given an erc20 address

Usage

example.ts

example.ts

import { paymaster } from "./paymaster";

const erc20TokenAddress = "0xFa5854FBf9964330d761961F46565AB7326e5a3b";

const erc20TokenData = await paymaster.getSupportedERC20TokenData(erc20TokenAddress);

Param Types

Paramater	Type	Description
Token Address	string	Onchain ERC-20 Token Address

Response Type

Paramater	Type
tokens	ERC20Token[] Object[] Key Value Type Description symbol string Token Symbol address string Token contract address decimal number Decimals of token fee bigint Gas fee in unit of of the token exchangeRate bigint Exchange rate of token

Details

{
  symbol: 'CTT',
  address: '0xFa5854FBf9964330d761961F46565AB7326e5a3b',
  decimal: 18,
  fee: 0n,
  exchangeRate: 1001219705870085130n
}

Source code

getSupportedERC20TokenData

createPaymasterUserOperation

Estimates gas limits and set paymasterAndData. Returns a complete userOperation

Usage

example.ts

import { UserOperation } from "abstractionkit";

const bundlerRPC = "https://sepolia.voltaire.candidewallet.com/rpc";

// Use the SmartAccount methods to help you construct the useroperation below
let userOperation = {
  sender: '0xb8741a449d50ed0dcfe395287f85be152884c8d9',
  nonce: 10n,
  initCode: '0x',
  callData: '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',
  callGasLimit: 0n,
  verificationGasLimit: 0n,
  preVerificationGas: 0n,
  maxFeePerGas: 66195658616n,
  maxPriorityFeePerGas: 120000n,
  paymasterAndData: '0x',
  signature: '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
}

userOperation = createPaymasterUserOperation(userOperation, bundlerRPC);

Param Types

Paramater	Type
userOperation	UserOperation object Key Value Type Description sender string The account making the operation nonce string Anti-replay parameter (see “Semi-abstracted Nonce Support” ) initCode string The initCode of the account (needed if and only if the account is not yet on-chain and needs to be created) callData string The data to pass to the sender during the main execution call callGasLimit bigint The amount of gas to allocate the main execution call verificationGasLimit bigint The amount of gas to allocate for the verification step preVerificationGas bigint The amount of gas to pay for to compensate the bundler for pre-verification execution and calldata maxFeePerGas bigint Maximum fee per gas (similar to EIP-1559 max_fee_per_gas) maxPriorityFeePerGas bigint Maximum priority fee per gas (similar to EIP-1559 max_priority_fee_per_gas) paymasterAndData string Address of paymaster sponsoring the transaction, followed by extra data to send to the paymaster (empty for self-sponsored transaction). Revolves to '0x' if not using a paymaster, and a paymasterDummyData when estimating gas signature string The signature for the userOperation. It is the data passed into the account along with the nonce during the verification step. Resolves to '0x' when the user did not provide their signature yet
Bundler URL	Type Description string The Bundler URL. It is used to fetch the gas limits
context	Type Description CandidePaymasterContext object. (optional) Key Value Type Description token string ERC20 token address. (optional) Context for information to pass to the paymaster
StateOverrideSet	Type Description StateOverrideSet object. (optional) Key Value Type Description key string The key for the state override set. value AddressToState The AddressToState value for the state override set. AddressToState object Key Value Type Description balance bigint | undefined The balance of the address. nonce bigint | undefined The nonce of the address. code string | undefined The code associated with the address. state Dictionary<string> | undefined The state associated with the address. stateDiff Dictionary<string> | undefined The state difference associated with the address. Wrapper for state overrides for gas estimation

Response Type

Paramater

Type

userOperation

Promise<UserOperation> object Key Value Type Description sender string The account making the operation nonce string Anti-replay parameter (see “Semi-abstracted Nonce Support” ) initCode string The initCode of the account (needed if and only if the account is not yet on-chain and needs to be created) callData string The data to pass to the sender during the main execution call callGasLimit bigint The amount of gas to allocate the main execution call verificationGasLimit bigint The amount of gas to allocate for the verification step preVerificationGas bigint The amount of gas to pay for to compensate the bundler for pre-verification execution and calldata maxFeePerGas bigint Maximum fee per gas (similar to EIP-1559 max_fee_per_gas) maxPriorityFeePerGas bigint Maximum priority fee per gas (similar to EIP-1559 max_priority_fee_per_gas) paymasterAndData string Address of paymaster sponsoring the transaction, followed by extra data to send to the paymaster (empty for self-sponsored transaction). Revolves to '0x' if not using a paymaster, and a paymasterDummyData when estimating gas signature string The signature for the userOperation. It is the data passed into the account along with the nonce during the verification step. Resolves to '0x' when the user did not provide their signature yet

Details

{
  sender: '0xb8741a449d50ed0dcfe395287f85be152884c8d9',
  nonce: 10n,
  initCode: '0x',
  callData: '0x541d63c800000000000000000000000038869bf66a61cf6bdb996a6ae40d5853fd43b52600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000001e48d80ff0a0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000018b009a7af758ae5d7b6aae84fe4c5ba67c041dfe5336000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000246a627842000000000000000000000000b8741a449d50ed0dcfe395287f85be152884c8d9009a7af758ae5d7b6aae84fe4c5ba67c041dfe5336000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000246a627842000000000000000000000000b8741a449d50ed0dcfe395287f85be152884c8d900fa5854fbf9964330d761961f46565ab7326e5a3b00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000044095ea7b30000000000000000000000003fe285dcd76bcce4ac92d38a6f2f8e964041e02000000000000000000000000000000000000000000000000000a1d1b51fe47c5c00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
  callGasLimit: 116807n,
  verificationGasLimit: 75441n,
  preVerificationGas: 50444n,
  maxFeePerGas: 66195658616n,
  maxPriorityFeePerGas: 120000n,
  paymasterAndData: '0x3fE285DcD76BCcE4Ac92d38A6F2F8E964041e020Fa5854FBf9964330d761961F46565AB7326e5a3b00000065bcd7fc00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000de84cb0d94beb10a4658077bd4ad19f4fdf94425ec730f342b8115d9907f6072f40bcea6a95bce74c29b84a7d4ee9fa67f4efb39e25a2e39a2ecb110b9a0af6b6a9589bfef7ec431b',
  signature: '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
}

Source code

createPaymasterUserOperation

createSponsorPaymasterUserOperation

Source code

createSponsorPaymasterUserOperation

createTokenPaymasterUserOperation

Estimates gas limits and set paymasterAndData for ERC-20 Token Paymaster. Returns a complete userOperation

Usage

example.ts

import { SmartAccount, CandidePaymaster } from "abstractionkit";

const paymasterRPC="https://api.candide.dev/paymaster/$version/$network/$apikey";
const erc20TokenAddress = "0xFa5854FBf9964330d761961F46565AB7326e5a3b"; // CTT test token
const bundlerRPC = "https://sepolia.voltaire.candidewallet.com/rpc";
const ownerPublicAddress = "0x2Ef844456580b6e1E22e1D584EBbC2467D9298B2"

const smartAccount = SafeAccount.initializeNewAccount([ownerPublicAddress])

// use smartAccount.createUserOperation to get the below
let userOperation = {
  sender: '0xb8741a449d50ed0dcfe395287f85be152884c8d9',
  nonce: 10n,
  initCode: '0x',
  callData: '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',
  callGasLimit: 0n,
  verificationGasLimit: 0n,
  preVerificationGas: 0n,
  maxFeePerGas: 66195658616n,
  maxPriorityFeePerGas: 120000n,
  paymasterAndData: '0x',
  signature: '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
}

const paymaster: CandidePaymaster = new CandidePaymaster(paymasterRPC);

userOperation = await paymaster.createTokenPaymasterUserOperation(
  smartAccount,
  userOperation,
  erc20TokenAddress,
  bundlerUrl,
);

Param Types

Paramater	Type
Smart Account	SmartAccount class Key Value Type Description accountAddress string The address of the smart account. proxyByteCode string The bytecode of the proxy. initializerFunctionSelector string The selector for the initializer function. initializerFunctionInputAbi string[] The ABI for the initializer function input. executorFunctionSelector string The selector for the executor function. executorFunctionInputAbi string[] The ABI for the executor function input.
userOperation	UserOperation object Key Value Type Description sender string The account making the operation nonce string Anti-replay parameter (see “Semi-abstracted Nonce Support” ) initCode string The initCode of the account (needed if and only if the account is not yet on-chain and needs to be created) callData string The data to pass to the sender during the main execution call callGasLimit bigint The amount of gas to allocate the main execution call verificationGasLimit bigint The amount of gas to allocate for the verification step preVerificationGas bigint The amount of gas to pay for to compensate the bundler for pre-verification execution and calldata maxFeePerGas bigint Maximum fee per gas (similar to EIP-1559 max_fee_per_gas) maxPriorityFeePerGas bigint Maximum priority fee per gas (similar to EIP-1559 max_priority_fee_per_gas) paymasterAndData string Address of paymaster sponsoring the transaction, followed by extra data to send to the paymaster (empty for self-sponsored transaction). Revolves to '0x' if not using a paymaster, and a paymasterDummyData when estimating gas signature string The signature for the userOperation. It is the data passed into the account along with the nonce during the verification step. Resolves to '0x' when the user did not provide their signature yet
ERC20 Token Address	Type Description string Onchain ERC-20 Token Address used for gas payment
Bundler URL	Type Description string The Bundler URL. It is used to fetch the gas limits

Response Type

Paramater

Type

userOperation

Promise<UserOperation> object Key Value Type Description sender string The account making the operation nonce string Anti-replay parameter (see “Semi-abstracted Nonce Support” ) initCode string The initCode of the account (needed if and only if the account is not yet on-chain and needs to be created) callData string The data to pass to the sender during the main execution call callGasLimit bigint The amount of gas to allocate the main execution call verificationGasLimit bigint The amount of gas to allocate for the verification step preVerificationGas bigint The amount of gas to pay for to compensate the bundler for pre-verification execution and calldata maxFeePerGas bigint Maximum fee per gas (similar to EIP-1559 max_fee_per_gas) maxPriorityFeePerGas bigint Maximum priority fee per gas (similar to EIP-1559 max_priority_fee_per_gas) paymasterAndData string Address of paymaster sponsoring the transaction, followed by extra data to send to the paymaster (empty for self-sponsored transaction). Revolves to '0x' if not using a paymaster, and a paymasterDummyData when estimating gas signature string The signature for the userOperation. It is the data passed into the account along with the nonce during the verification step. Resolves to '0x' when the user did not provide their signature yet

Details

{
  sender: '0xb8741a449d50ed0dcfe395287f85be152884c8d9',
  nonce: 10n,
  initCode: '0x',
  callData: '0x541d63c800000000000000000000000038869bf66a61cf6bdb996a6ae40d5853fd43b52600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000001e48d80ff0a0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000018b009a7af758ae5d7b6aae84fe4c5ba67c041dfe5336000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000246a627842000000000000000000000000b8741a449d50ed0dcfe395287f85be152884c8d9009a7af758ae5d7b6aae84fe4c5ba67c041dfe5336000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000246a627842000000000000000000000000b8741a449d50ed0dcfe395287f85be152884c8d900fa5854fbf9964330d761961f46565ab7326e5a3b00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000044095ea7b30000000000000000000000003fe285dcd76bcce4ac92d38a6f2f8e964041e02000000000000000000000000000000000000000000000000000a1d1b51fe47c5c00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
  callGasLimit: 116807n,
  verificationGasLimit: 75441n,
  preVerificationGas: 50444n,
  maxFeePerGas: 66195658616n,
  maxPriorityFeePerGas: 120000n,
  paymasterAndData: '0x3fE285DcD76BCcE4Ac92d38A6F2F8E964041e020Fa5854FBf9964330d761961F46565AB7326e5a3b00000065bcd7fc00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000de84cb0d94beb10a4658077bd4ad19f4fdf94425ec730f342b8115d9907f6072f40bcea6a95bce74c29b84a7d4ee9fa67f4efb39e25a2e39a2ecb110b9a0af6b6a9589bfef7ec431b',
  signature: '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
}

Source code

createTokenPaymasterUserOperation

calculateUserOperationErc20TokenMaxGasCost

Calculates the maximum gas cost in ERC-20 tokens for a given userOperation

Usage

example.ts

import { CandidePaymaster } from "abstractionkit";

const paymasterRPC="https://api.candide.dev/paymaster/$version/$network/$apikey";
const erc20TokenAddress = "0xFa5854FBf9964330d761961F46565AB7326e5a3b"; // CTT test token

let userOperation = {
  sender: '0xb8741a449d50ed0dcfe395287f85be152884c8d9',
  nonce: 10n,
  initCode: '0x',
  callData: '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',
  callGasLimit: 116807n,
  verificationGasLimit: 75441n,
  preVerificationGas: 50444n,
  maxFeePerGas: 66195658616n,
  maxPriorityFeePerGas: 120000n,
  paymasterAndData: '0x3fE285DcD76BCcE4Ac92d38A6F2F8E964041e020Fa5854FBf9964330d761961F46565AB7326e5a3b00000065bcd7fc00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000de84cb0d94beb10a4658077bd4ad19f4fdf94425ec730f342b8115d9907f6072f40bcea6a95bce74c29b84a7d4ee9fa67f4efb39e25a2e39a2ecb110b9a0af6b6a9589bfef7ec431b',
  signature: '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
}

const paymaster: CandidePaymaster = new CandidePaymaster(paymasterRPC);

const cost = await paymaster.calculateUserOperationErc20TokenMaxGasCost(
  userOperation,
  erc20TokenAddress,
);

Param Types

Paramater	Type
userOperation	UserOperation object Key Value Type Description sender string The account making the operation nonce string Anti-replay parameter (see “Semi-abstracted Nonce Support” ) initCode string The initCode of the account (needed if and only if the account is not yet on-chain and needs to be created) callData string The data to pass to the sender during the main execution call callGasLimit bigint The amount of gas to allocate the main execution call verificationGasLimit bigint The amount of gas to allocate for the verification step preVerificationGas bigint The amount of gas to pay for to compensate the bundler for pre-verification execution and calldata maxFeePerGas bigint Maximum fee per gas (similar to EIP-1559 max_fee_per_gas) maxPriorityFeePerGas bigint Maximum priority fee per gas (similar to EIP-1559 max_priority_fee_per_gas) paymasterAndData string Address of paymaster sponsoring the transaction, followed by extra data to send to the paymaster (empty for self-sponsored transaction). Revolves to '0x' if not using a paymaster, and a paymasterDummyData when estimating gas signature string The signature for the userOperation. It is the data passed into the account along with the nonce during the verification step. Resolves to '0x' when the user did not provide their signature yet
ERC20 Token Address	Type Description string Onchain ERC-20 Token Address used for gas payment

Response Type

Paramater	Type	Description
Cost	Promise<bigInt>	The maximum gas cost in ERC-20 tokens

Details

3391931975665260

Source code

calculateUserOperationErc20TokenMaxGasCost