Solana Toolkit

Solana Toolkit

A comprehensive toolkit for interacting with the Solana blockchain, leveraging Helius for RPC/API services and Jupiter for DeFi swaps.

Prerequisites

1. Helius API Key: Get free at dashboard.helius.dev.
2. Configuration: Store your key in ~/.config/solana-skill/config.json:

   {
     "heliusApiKey": "your-api-key",
     "network": "mainnet-beta"
   }
   

Core Capabilities

Wallet Management

• Create/Import: Generate new keypairs or import via private key/seed phrase.
• Secure Storage: Encrypted local storage for keys.
• Balance Check: View SOL and SPL token balances.

Transactions

• Send SOL/Tokens: Transfer assets to any Solana address.
• History: View human-readable transaction history.
• Priority Fees: Automatic estimation for faster confirmation.

DeFi (Jupiter)

• Swap: Exchange tokens with best price routing via Jupiter.
• Quotes: Get real-time price quotes and slippage data.

Monitoring

• Address Watch: Monitor wallets for incoming/outgoing transactions.
• Webhooks: Set up notifications for specific events.

Quick Reference

Check Balance

import { createHelius } from "helius-sdk";

const helius = createHelius({ apiKey: "YOUR_KEY" });
const assets = await helius.getAssetsByOwner({
  ownerAddress: "WALLET_ADDRESS",
  displayOptions: {
    showFungible: true,
    showNativeBalance: true,
  },
});

Send SOL

import {
  Connection,
  SystemProgram,
  Transaction,
  sendAndConfirmTransaction,
  LAMPORTS_PER_SOL,
} from "@solana/web3.js";

const connection = new Connection(
  "https://mainnet.helius-rpc.com/?api-key=YOUR_KEY",
);
const tx = new Transaction().add(
  SystemProgram.transfer({
    fromPubkey: sender.publicKey,
    toPubkey: recipientPubkey,
    lamports: amount * LAMPORTS_PER_SOL,
  }),
);
await sendAndConfirmTransaction(connection, tx, [sender]);

Jupiter Swap

// 1. Get quote
const quote = await fetch(
  `https://quote-api.jup.ag/v6/quote?inputMint=${inputMint}&outputMint=${outputMint}&amount=${amount}`,
);

// 2. Build swap transaction
const swap = await fetch("https://quote-api.jup.ag/v6/swap", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    quoteResponse: await quote.json(),
    userPublicKey: wallet.publicKey.toString(),
  }),
});

// 3. Sign and send

API Endpoints

Security Best Practices

• Never log private keys: Ensure logs are sanitized.
• Validate addresses: Check for valid Solana addresses before sending.
• Slippage: Set reasonable slippage limits (default 0.5% - 1%).
• Simulation: Simulate transactions before sending to catch errors early.

References

• Helius API Documentation
• Jupiter Swap Integration
• Security Guidelines