PumpSwap SDK

Lightweight SDK for trading PumpSwap coins (Pump.fun migrated coins) with optional low-latency transaction landing for HFT/algo/sniping workflows.

Highlights

• Buy/sell with a few RPC calls
• Fetch pool and price data
• Integrated low-latency transaction landing providers:
  • Jito
  • Nozomi (https://use.temporal.xyz/)
  • 0slot (https://0slot.trade/)
  • BlockRazor (https://www.blockrazor.io/)
  • bloXroute (https://docs.bloxroute.com/)

Low-Latency / HFT / Sniping / Copy trading Integration

This SDK can route signed transactions to one or more landing providers in parallel for faster inclusion.

Operational notes:

• Providers often require API keys and may expose health endpoints or WebSockets for tip data.
• For best latency, deploy close to your selected providers and use HTTP keep-alive every 60s.

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Best Practices

• Warm up connections (health pings) before burst submissions.
• Use fresh recent blockhashes and avoid reusing expired ones.
• Prefer parallel submission for time-sensitive trades.
• Monitor provider responses and adjust routing in real time.

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Getting Started

1. Install

npm i

2. Configure

• Copy .env.copy to .env
• Fill in required keys:
  • Private key (base58 or JSON array depending on your setup)
  • RPC (Helius or any performant mainnet endpoint)
  • Any provider API keys you plan to use (Jito/Nozomi/0slot/etc.)

3. Build/Run

• Use the examples below in your own script or integrate the SDK in your app.

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Usage

Buy / Sell on PumpSwap

import { PublicKey } from '@solana/web3.js';
import { wallet_1 } from './constants';
import { PumpSwapSDK } from './pumpswap';

async function main() {
  const mint = 'your-pumpfun-token-address';
  const solAmt = 0.99; // buy ~1 SOL worth using WSOL
  const sellPercentage = 0.5; // sell 50%

  const sdk = new PumpSwapSDK();
  await sdk.buy(new PublicKey(mint), wallet_1.publicKey, solAmt);
  await sdk.sell_percentage(new PublicKey(mint), wallet_1.publicKey, sellPercentage);
  await sdk.sell_exactAmount(new PublicKey(mint), wallet_1.publicKey, 1000); // sell exact tokens
}

Fetch Price

import { PublicKey } from '@solana/web3.js';
import { getPrice } from './pool';

async function main() {
  const mint = new PublicKey('your-pumpfun-token-address');
  console.log(await getPrice(mint));
}

Fetch Pool

import { PublicKey } from '@solana/web3.js';
import { getPumpSwapPool } from './pool';

async function main() {
  const mint = new PublicKey('your-pumpfun-token-address');
  console.log(await getPumpSwapPool(mint));
}

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Community

• Discord: https://discord.gg/dc3Kh3Y3yJ

Credits

• Pool logic adapted from: https://github.com/ElmTheDev/pumpswap (see pool.ts)