How to Use Jito Bundles for Token Launches (2026)

Updated January 2026 · SolBundler Team

What Is Jito and Why Does Every Serious Dev Use It?

Jito is a Solana validator client and MEV (Maximal Extractable Value) infrastructure layer that allows multiple transactions to be bundled and executed atomically in the same block. For Pump.fun token launches, this means your token creation and all bundle wallet buys happen simultaneously — making it impossible for external snipers to buy before you.

Without Jito, your token creation and buy transactions are separate — there's a window between creation and your buy where snipers can insert their transactions. With Jito bundles, that window is eliminated. This single feature is the most impactful protection available to Pump.fun devs in 2026.

How Jito Bundles Work Technically

A Jito bundle is a group of transactions submitted to Jito block engines with a tip payment. The bundle is either executed completely (all transactions in the same block) or not at all — atomic execution. The process:

• 1. Build all transactions: token creation + each bundle wallet buy
• 2. Add a Jito tip transaction — payment to the block builder for priority inclusion
• 3. Submit bundle to Jito block engine endpoints (multiple regions for reliability)
• 4. Jito block builder includes your entire bundle in the next block atomically
• 5. All transactions confirm simultaneously — no gap for snipers

Setting the Right Jito Tip

The Jito tip is a payment to incentivize block builders to include your bundle. Higher tip = higher priority = more reliable inclusion. Setting the tip too low means your bundle gets dropped during congestion. Setting it too high wastes SOL unnecessarily. The right amount depends on network conditions at launch time.

Using Jito Bundles with SolBundler

SolBundler handles all Jito bundle complexity automatically. You don't need to build transactions manually or interact with Jito endpoints directly. Simply configure your token settings, select your wallets, set the tip amount, and click Deploy. SolBundler builds the bundle, submits to multiple Jito block engines simultaneously, and confirms execution.

Jito Bundle Limits to Know

• → Maximum 5 transactions per bundle (Jito limit)
• → Each transaction can include multiple instructions (wallet buys)
• → Maximum bundle size: 1232 bytes per transaction
• → SolBundler optimizes transaction packing to maximize wallets per bundle

FAQ