Prepaid Gas Packages

NPM packages for privacy-preserving gas payments using Account Abstraction (ERC-4337) and zero-knowledge proofs.

Packages

Package	Description
@prepaid-gas/core	Main SDK for privacy-preserving paymaster integration
@prepaid-gas/data	Subgraph client with fluent query builders
@prepaid-gas/constants	Shared constants, ABIs, and network configurations

Quick Start

# Install the core SDK
npm install @prepaid-gas/core

Basic Usage

import { PrepaidGasPaymaster, encodePaymasterContext } from '@prepaid-gas/core';

// Create client
const paymaster = PrepaidGasPaymaster.createForNetwork(84532);

// Create context
const context = encodePaymasterContext(paymasterAddress, identity);

// Get paymaster data for transactions
const paymasterData = await paymaster.getPaymasterData({
  sender: '0x...',
  callData: '0x...',
  context,
  // ... other UserOperation fields
});

Subgraph Integration

import { SubgraphClient } from '@prepaid-gas/data';

const client = SubgraphClient.createForNetwork(84532);

// Query deposit activities
const activities = await client.query().depositActivities().byPaymasterAddress(paymasterAddress).execute();

Development

# Install dependencies
pnpm install

# Build all packages
pnpm build

# Run tests
pnpm test

# Lint
pnpm lint

Supported Networks

Network	Chain ID	Status
Base Sepolia	84532	✅ Active

License

MIT