@yokairpc/sdk

Complete toolkit for privacy-first Solana development with built-in MEV protection and Jupiter integration.

Installation

npm install @yokairpc/sdk @solana/web3.js

Quick Start

import { YokaiSDK } from '@yokairpc/sdk';
import { Keypair } from '@solana/web3.js';

// Initialize SDK
const sdk = new YokaiSDK();

// Execute swap with one line
const wallet = Keypair.generate(); // Or your wallet adapter

const result = await sdk.swap({
  inputToken: 'SOL',
  outputToken: 'USDC',
  amount: 1.5,
  wallet: wallet,
  slippageBps: 50
});

console.log('Swap signature:', result.signature);
console.log('Output amount:', result.outputAmount);

Features

• ✅ One-Line Swaps - Simple API for complex operations
• ✅ MEV Protection - Built-in protection for all transactions
• ✅ Jupiter Integration - Best prices across all Solana DEXs
• ✅ Token Utilities - Easy token lookup and conversion
• ✅ TypeScript - Full type safety and IntelliSense
• ✅ Free Forever - Unlimited requests, no API key required

API Reference

new YokaiSDK(config?)

Create a new SDK instance.

const sdk = new YokaiSDK({
  rpcEndpoint: 'https://app.yokairpc.io/api/rpc', // optional
  jupiterEndpoint: 'https://lite-api.jup.ag/swap/v1' // optional
});

sdk.swap(params)

Execute a swap with MEV protection.

const result = await sdk.swap({
  inputToken: 'SOL',        // Symbol or address
  outputToken: 'USDC',      // Symbol or address
  amount: 1.5,              // Input amount
  wallet: myWallet,         // Wallet adapter or Keypair
  slippageBps: 50,          // Optional: 0.5% slippage
  options: {                // Optional: Send options
    skipPreflight: false,
    preflightCommitment: 'confirmed'
  }
});

if (result.success) {
  console.log('Signature:', result.signature);
  console.log('Output:', result.outputAmount);
  console.log('Price impact:', result.priceImpact);
} else {
  console.error('Error:', result.error);
}

sdk.getQuote(params)

Get a quote without executing swap.

const quote = await sdk.getQuote({
  inputMint: 'So11111111111111111111111111111111111111112',
  outputMint: 'EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v',
  amount: 1500000000, // lamports
  slippageBps: 50
});

console.log('Expected output:', quote.outAmount);
console.log('Price impact:', quote.priceImpactPct);
console.log('Route:', quote.route);

sdk.getRPCClient()

Get underlying RPC client for low-level operations.

const rpcClient = sdk.getRPCClient();
const connection = rpcClient.getConnection();
const balance = await connection.getBalance(publicKey);

sdk.getJupiterClient()

Get Jupiter client for advanced operations.

const jupiterClient = sdk.getJupiterClient();
const quote = await jupiterClient.getQuote({...});

Token Utilities

import { 
  getTokenBySymbol, 
  getTokenByAddress,
  toLamports,
  fromLamports,
  POPULAR_TOKENS 
} from '@yokairpc/sdk';

// Get token by symbol
const solToken = getTokenBySymbol('SOL');
console.log(solToken.address); // So11111111...

// Convert amounts
const lamports = toLamports(1.5, 9); // 1500000000
const amount = fromLamports('1500000000', 9); // 1.5

// Access popular tokens
console.log(POPULAR_TOKENS.USDC);
console.log(POPULAR_TOKENS.BONK);

Supported Tokens

Built-in support for:

• SOL (Wrapped SOL)
• USDC (USD Coin)
• USDT (Tether)
• BONK (Bonk)
• JUP (Jupiter)

Plus any token via address!

Advanced Usage

Custom RPC Endpoint

const sdk = new YokaiSDK({
  rpcEndpoint: 'https://your-instance.com/api/rpc'
});

Swap with Token Addresses

await sdk.swap({
  inputToken: 'So11111111111111111111111111111111111111112',
  outputToken: 'EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v',
  amount: 1.5,
  wallet: myWallet
});

Custom Slippage

await sdk.swap({
  inputToken: 'SOL',
  outputToken: 'USDC',
  amount: 1.5,
  wallet: myWallet,
  slippageBps: 100 // 1% slippage
});

Error Handling

const result = await sdk.swap({...});

if (!result.success) {
  console.error('Swap failed:', result.error);
  // Handle error
}

TypeScript Support

Full TypeScript support with comprehensive types:

import { SwapParams, SwapResult, Quote, Token } from '@yokairpc/sdk';

Comparison with @yokairpc/client

| Feature | @yokairpc/client | @yokairpc/sdk | |---------|------------------|---------------| | RPC Client | ✅ | ✅ | | MEV Protection | ✅ | ✅ | | Jupiter Integration | ❌ | ✅ | | One-line Swaps | ❌ | ✅ | | Token Utilities | ❌ | ✅ | | Quote API | ❌ | ✅ | | Size | ~3KB | ~10KB | | Use Case | Low-level control | Easy swaps |

Links

• Website: app.yokairpc.io
• Documentation: docs
• GitHub: yokairpc/yokai-rpc
• Twitter: @yokairpcdotio
• NPM: @yokairpc/sdk

Related Packages

• @yokairpc/client - Lightweight RPC client

License

MIT License - see LICENSE for details.