Web3Auth Wallet-as-a-Service SDKs

Web3Auth provides a comprehensive suite of developer SDKs and infrastructure for embedding fully non-custodial wallets and authentication into Web3 applications — eliminating seed phrases and dramatically reducing user onboarding friction. Trusted by over 8,200 dApps and nearly 50 million end users, Web3Auth is a Consensys formation purpose-built to make digital ownership human-centric and accessible.

Product Overview

Web3Auth's Wallet-as-a-Service platform is structured around two core SDK families — Plug N Play and MPC Core Kit — plus a post-authentication Wallet Services layer and foundational MPC infrastructure. Together they allow any developer team to integrate secure, non-custodial wallets with social login authentication in as little as 15 minutes, without exposing users to seed phrases or private key management.

Key Features

• Plug N Play SDK: Drop-in authentication and wallet creation with social logins (Google, X, Email, Passkeys, OAuth2/OIDC). Whitelabelled UI, native iOS and Android SDKs, and support for Ethereum/EVM, Solana, Bitcoin, SUI, Aptos, Cardano, TON, NEAR, Starknet, and more.
• MPC Core Kit SDK: Headless, fully customisable SDK for teams requiring complete UX control. Built on MPC-DKLS19 threshold signature scheme — no full private key reconstruction on any device. Available for web (JavaScript), Node.js, iOS (Swift), and Android (Java/Kotlin). Keyless signing in under 1.2 seconds.
• Account Abstraction: Native ERC-4337 smart account infrastructure with gas sponsorship via paymasters, ERC-20 gas payments, batch transactions, delegated actions, and session keys. Compatible with EIP-7702 and ERC-7579 module standards.
• Wallet Services: Post-authentication wallet components including customisable Wallet UI, Fiat On-ramp Aggregator (100+ local payment methods, up to 70% lower on-ramp fees), NFT Checkout, and wallet pre-generation for airdrops and loyalty campaigns.
• MPC Infrastructure: SOC2, CCPA, CPRA, and GDPR compliant geo-distributed node network. Key shares distributed across user device, Web3Auth's decentralised network, and optional user-controlled factors — the full private key is never reconstructed on a single machine.

Use Cases

Web3Auth is used by game studios, DeFi protocols, NFT platforms, and enterprise Web3 applications that want to onboard mainstream users without technical friction. Notable deployments include Ronin Wallet (Sky Mavis), Mocaverse (Animoca Brands — 1.5 million on-chain mints in 6 months), and chess.com. Free tier available for the first 1,000 Monthly Active Wallets, with tiered pricing beyond that.