Installation

Install the SDK

npm install @nerochain/mpc-sdk

The SDK depends on @noble/curves and @noble/hashes for all MPC and cryptographic operations:

npm install @noble/curves @noble/hashes

Package	Version	Purpose
`@noble/curves`	^1.4.0	All MPC and cryptographic operations
`@noble/hashes`	^1.4.0	Key derivation (HKDF) and hashing

Install these based on the features you need:

Package	Version	When to install
`react`	^18.0.0	React hooks, context provider, or modal UI
`ethers`	^6.0.0	Account Abstraction (ERC-4337) or Pedersen signing
`@metamask/sdk`	^0.20.0	MetaMask wallet adapter
`@walletconnect/ethereum-provider`	—	WalletConnect support
`@coinbase/wallet-sdk`	—	Coinbase Wallet support

The SDK is distributed as a multi-entry package. Import only the modules you need to optimize your bundle size:

Import Path	Entry File	Purpose
`@nerochain/mpc-sdk`	`src/index.ts`	Core SDK class, MPC protocols, and shared types
`@nerochain/mpc-sdk/react`	`src/react/index.ts`	React Context providers and hooks for state management
`@nerochain/mpc-sdk/chains`	`src/chains/index.ts`	Pre-defined chain configurations and network managers
`@nerochain/mpc-sdk/modal`	`src/modal/index.ts`	Pre-built UI components for login and wallet management
`@nerochain/mpc-sdk/no-modal`	`src/no-modal/index.ts`	Headless SDK surface for custom UI implementations
`@nerochain/mpc-sdk/aa`	`src/aa/index.ts`	ERC-4337 Account Abstraction utilities and clients

Main (@nerochain/mpc-sdk): NeroMpcSDK, ClientKeyManager, APIClient, NeroProvider
React (@nerochain/mpc-sdk/react): NeroMpcAuthProvider, useNeroConnect, useNeroWallet
Chains (@nerochain/mpc-sdk/chains): ChainManager, ChainConfig, NERO_TESTNET
Modal (@nerochain/mpc-sdk/modal): LoginButton, LoginModal, AllWalletsView
AA (@nerochain/mpc-sdk/aa): BundlerClient, PaymasterClient, SimpleAccount

The SDK ships with these build settings:

Setting	Value
Target	ES2020
Platform	Browser (Node.js crypto disabled)
Formats	Dual ESM and CommonJS
Treeshaking	Enabled