jito-bundles
Jito Bundle Submission for Solana
Jito bundles allow you to submit up to 5 Solana transactions that execute atomically — either all land in the same slot or none do. This is the primary mechanism for MEV protection and competitive transaction execution on Solana. Approximately 85%+ of Solana validators run the Jito-modified client, making bundles the standard for reliable, front-run-resistant execution.
EXECUTION SKILL — SAFETY WARNING: Submitting bundles spends real SOL on tips. Always test with
--demomode first. Never submit bundles with real funds without explicit confirmation. Default to simulation/dry-run in all scripts and examples.
When to Use Bundles
| Scenario | Use Bundle? | Why |
|---|---|---|
| Swap on illiquid token | Yes | Prevents sandwich attacks |
| Multi-step arbitrage | Yes | Atomic execution prevents partial fills |
| Liquidation | Yes | Competitive — tip determines priority |
| Simple SOL transfer | No | Priority fees are cheaper and sufficient |
| Time-insensitive swap | Maybe | Bundles cost tips; priority fees may suffice |
| NFT mint / competitive action | Yes | Guarantees ordering within the slot |
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