One integration gives you high-conversion Web3 Login across EVM & Solana, plus an instant Web3 Payment Gateway to accept crypto payments with webhooks.
Designed for dApps, SaaS platforms, game studios, and e-commerce.
Allow any user to sign into your dApp with their favorite crypto wallet. Provides cryptographic identity verification, multi-wallet linking, and secure session JWTs.
Accept crypto payments with automated blockchain verification. Generate payment links, accept USDC / SOL / ETH, and receive webhook triggers for settled transactions.
payment.confirmed)Test how your users will experience login and payments.
Click the button below to trigger the actual EIP-6963 + Solana Standard detection modal.
Zero backend lock-in. Works with Next.js, React, Node.js, and pure REST.
import { useWeb3Auth, Web3AuthModal } from "@startweb3/sdk";
export function App() {
const { user, loginWithSolana, loginWithEVM, logout } = useWeb3Auth();
return user ? (
<div>Welcome {user.primaryWalletAddress}!</div>
) : (
<button onClick={loginWithSolana}>Connect Phantom / Solana</button>
);
}