open-index/open-npm huggingface dataset:
npm package: @harukit/haru
Description: Haru SDK - Multichain by default. Config-driven. Zero address management. DeFi orchestration with EIP-7702 gasless batch execution.
Latest version: 1.2.1

# Haru SDK

Multichain by default. Config-driven. Zero address management.

Haru eliminates the complexity of cross-chain development. Everything happens through a simple config definition — **no need to manage token addresses, decimals, or chain IDs.**

```tsx
const haru = new Haru({
  apiKey: 'your-api-key',
  config: {
    chains: ['arbitrum', 'base', 'optimism'],
    tokens: ['USDC', 'ETH', 'WETH'],
  },
});
```

Swaps & Transfers work across chains out of the box. Support for multi-input across chains — aggregate funds from multiple sources into a single destination with one signature.

```tsx
// Get swap quote by USD value
const quote = await haru.swaps.getQuoteByUsd({ userAddress, fromSymbol, fromChain, toSymbol, toChain, usdValue });

// Get swap quote by token amount
const quote = await haru.swaps.getQuoteByAmount({ userAddress, fromSymbol, fromChain, toSymbol, toChain, amount });

// Get multi-input quote (dilute flow)
const quote = await haru.swaps.getMultiInputByUsd({ userAddress, inputs, destinationChain, destinationCurrency });

// Get transfer quote
const transfer = await haru.transfers.getByUsd({ fromUser, toUser, tokenSymbol, fromChain, toChain, usdValue });
```

## Haru7702 (EIP-7702)

**Gasless batch execution via custom delegation contract.**

Our Haru7702BatchSponsor.sol contract enables EOAs to batch multiple calls into a single gas-sponsored transaction. The relayer pays gas — users just sign.

```tsx
// Execute a swap
const results = await haru7702.executeSwap({ quote, wallet, signAuthorization });

// Execute a transfer
const results = await haru7702.executeTransfer({ transfer, wallet, signAuthorization });

// Execute a custom batch bundle
const results = await haru7702.executeBatch({ bundle, wallet, signAuthorization });
```

Every execution is cryptographically bound to a deadline, sponsor address, unique nonce, and chain ID — preventing replay attacks, ensuring transactions expire after their window, and restricting execution to the designated relayer on the intended chain.

**Perfect for:**

- Multiple swaps in one transaction
- Chained actions (swap → transfer → bridge → yield)
- Single-chain or multi-chain orchestration

## Installation

```bash
bun add @harukit/sdk
# or
npm install @harukit/sdk
```

## Quick Start

```typescript
import { Haru } from '@harukit/sdk';

const haru = new Haru({
  apiKey: 'your_api_key',
  config: {
    chains: ['arbitrum', 'base', 'optimism'],
    tokens: ['USDC', 'ETH', 'WETH'],
    primaryUsd: ['USDC'],
  },
});
```

## Features

- **Swaps** - Single and multi-input swaps across chains
- **Transfers** - Same-chain and cross-chain transfers
- **Balances** - User token balances
- **Yield** - Aave yield farming
- **EIP-7702** - Batch transactions with gas sponsorship

## License

MIT
npm package: @harukit/sdk
Description: Haru SDK - Multichain by default. Config-driven. Zero address management. DeFi orchestration with EIP-7702 gasless batch execution.
Latest version: 1.0.3

# Haru SDK

Multichain by default. Config-driven. Zero address management.

Haru eliminates the complexity of cross-chain development. Everything happens through a simple config definition — **no need to manage token addresses, decimals, or chain IDs.**

```tsx
const haru = new Haru({
  apiKey: 'your-api-key',
  config: {
    chains: ['arbitrum', 'base', 'optimism'],
    tokens: ['USDC', 'ETH', 'WETH'],
  },
});
```

Swaps & Transfers work across chains out of the box. Support for multi-input across chains — aggregate funds from multiple sources into a single destination with one signature.

```tsx
// Get swap quote by USD value
const quote = await haru.swaps.getQuoteByUsd({ userAddress, fromSymbol, fromChain, toSymbol, toChain, usdValue });

// Get swap quote by token amount
const quote = await haru.swaps.getQuoteByAmount({ userAddress, fromSymbol, fromChain, toSymbol, toChain, amount });

// Get multi-input quote (dilute flow)
const quote = await haru.swaps.getMultiInputByUsd({ userAddress, inputs, destinationChain, destinationCurrency });

// Get transfer quote
const transfer = await haru.transfers.getByUsd({ fromUser, toUser, tokenSymbol, fromChain, toChain, usdValue });
```

## Haru7702 (EIP-7702)

**Gasless batch execution via custom delegation contract.**

Our Haru7702BatchSponsor.sol contract enables EOAs to batch multiple calls into a single gas-sponsored transaction. The relayer pays gas — users just sign.

```tsx
// Execute a swap
const results = await haru7702.executeSwap({ quote, wallet, signAuthorization });

// Execute a transfer
const results = await haru7702.executeTransfer({ transfer, wallet, signAuthorization });

// Execute a custom batch bundle
const results = await haru7702.executeBatch({ bundle, wallet, signAuthorization });
```

Every execution is cryptographically bound to a deadline, sponsor address, unique nonce, and chain ID — preventing replay attacks, ensuring transactions expire after their window, and restricting execution to the designated relayer on the intended chain.

**Perfect for:**

- Multiple swaps in one transaction
- Chained actions (swap → transfer → bridge → yield)
- Single-chain or multi-chain orchestration

## Installation

```bash
bun add @harukit/sdk
# or
npm install @harukit/sdk
```

## Quick Start

```typescript
import { Haru } from '@harukit/sdk';

const haru = new Haru({
  apiKey: 'your_api_key',
  config: {
    chains: ['arbitrum', 'base', 'optimism'],
    tokens: ['USDC', 'ETH', 'WETH'],
    primaryUsd: ['USDC'],
  },
});
```

## Features

- **Swaps** - Single and multi-input swaps across chains
- **Transfers** - Same-chain and cross-chain transfers
- **Balances** - User token balances
- **Yield** - Aave yield farming
- **EIP-7702** - Batch transactions with gas sponsorship

## License

MIT