@nowallet/core

Wallet abstraction SDK for Mantle Network — login with Google, no seed phrases required.

Features

• Social Login — Google OAuth & email OTP authentication
• Zero Wallet Friction — wallets created automatically in the background
• Gas Sponsorship — gasless transactions for end users
• Mantle Native — built for Mantle Network (Chain ID 5000)
• Type-Safe — full TypeScript support with autocomplete

Installation

pnpm add @nowallet/core
# or
npm install @nowallet/core
# or
yarn add @nowallet/core
Quick Start
TypeScriptimport { createNoWallet } from '@nowallet/core';

// Initialize client
const client = createNoWallet({
  apiKey: 'nw_live_xxxx',
  chain: 'mantle'
});

// Login with Google
const user = await client.loginWithGoogle(googleToken);
console.log('Wallet:', user.walletAddress);

// Send transaction (gasless)
const tx = await client.sendTransaction({
  to: '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb',
  value: '0.01'
});
console.log('Transaction:', tx.hash);
API Reference
createNoWallet(config)
Initialize the SDK client.
Parameters:

config.apiKey (string, required) — your API key
config.chain (string, optional) — blockchain network (default: 'mantle')
config.apiUrl (string, optional) — custom API endpoint

Returns: NoWalletClient
Authentication

client.loginWithGoogle(token) — Authenticate with Google OAuth token
client.loginWithEmail(email, code) — Authenticate with email OTP
client.logout() — Clear current session
client.getCurrentUser() — Get authenticated user

Wallet Operations

client.getWallet() — Fetch wallet details (address, balance, chainId)
client.getBalance() — Get wallet balance in MNT

Transactions

client.sendTransaction(params) — Send transaction with gas sponsorshipTypeScript{
  to: string;      // recipient address
  value: string;   // amount in MNT
  data?: string;   // optional contract data
}
client.mintNFT(params) — Mint NFT with metadataTypeScript{
  contractAddress: string;
  metadata: {
    name: string;
    description: string;
    image: string;
  }
}
client.getTransactionHistory() — Fetch transaction history

TypeScript Support
TypeScriptimport type { 
  NoWalletConfig, 
  User, 
  Wallet, 
  Transaction 
} from '@nowallet/core';
Network Details

Network: Mantle Mainnet
Chain ID: 5000
RPC: https://rpc.mantle.xyz
Explorer: https://explorer.mantle.xyz

Error Handling
TypeScripttry {
  const user = await client.loginWithGoogle(token);
} catch (error) {
  console.error(error.message);
}