App integration

Reown AppKit (ex-Web3Modal/WalletConnect SDK)

Wallet integration & auth

Wallet · SDK · Authentication

Reown AppKit, formerly Web3Modal and the WalletConnect SDK, is a wallet-connection SDK with a hosted relay, support for over 700 wallets, and embedded logins. Application builders use it to cover both external wallets and embedded sign-in from one integration.

Related resources

Human Passport

Human Passport aggregates identity credentials, called Stamps, into one Unique Humanity Score per wallet, so projects can check that an address is a distinct person before an airdrop, grant round, vote or signup. Read scores from the REST API or drop in the Passport Embed React component.

thirdweb

thirdweb is a full stack, open-source web3 development platform with frontend, backend, and onchain tools to build complete web3 apps - on every EVM chain.

Modular Account

Alchemy's Modular Account is a maximally modular, upgradeable smart contract account that is compatible with ERC-4337 and ERC-6900. Alchemy's Modular Account most efficient smart account on the market with release of v2 released in feb 2025

Ethereum Attestation Service (EAS)

EAS is an infrastructure public good for making attestations onchain or offchain about anything. Attestations are digital signatures on structured pieces of data used to build more trust online and onchain.

React Native Passkeys

React Native Passkeys exposes one WebAuthn-shaped passkey API across iOS, Android, and Web targets so you can reuse existing auth backends while shipping native mobile wallet or consumer apps.

@slicekit/erc8128

TypeScript library to sign and verify HTTP requests with Ethereum wallets using ERC-8128 (RFC 9421 HTTP Message Signatures extension), enabling wallet-based authentication and request integrity.