Execution Engines

Pick how each trade lands — by speed, MEV protection, or landing rate. Same flat platform fee on every path.

Overview

Subslot gives you five execution paths, chosen per trade: pump, beam, metis, jito, and helius. Beam is the default and works on any token; the others trade venue, protection, and landing rate for specific situations.

In the side panel, select the engine from the tabs above the buy/sell buttons — JUP expands to Beam and Metis, and PUMP, JITO, and HELIUS are their own tabs. The choice persists across side-panel refreshes. In the full-page terminal, a quick Route dropdown in the TRADE header offers pump, beam, and metis, remembered between sessions.

Beam — the default

Jupiter Beam (/swap/v2/build) aggregates routing across every Solana venue — Raydium, Orca, Meteora, and more — for the best price, with sub-second, MEV-protected landing. Subslot assembles the transaction itself for tight control and appends a private address-lookup table so complex routes still fit the packet limit, retrying with fewer accounts if a route is too large.

• Best for: Most trades — the default for a reason
• Routing: Aggregated across every Solana venue
• Speed: Sub-second landing
• MEV protection: Transactions are invisible to the mempool
• On-chain extras: A small Beam tip plus the Solana base fee
• Quote token: SOL and USDC

Pump — direct pump.fun

Pump trades the pump.fun bonding curve directly (pre-bond) or the PumpSwap AMM (after graduation), with no aggregator in the path and a fast Sender-tip landing. It only applies to pump.fun coins.

• Best for: pump.fun launches and graduated PumpSwap tokens
• Routing: Direct curve or PumpSwap AMM — no aggregator
• Quote token: SOL only

Metis — alternate aggregated quote

Metis routes via Jupiter's /swap/v1 quote and lands through Helius (with an automatic Jito fallback). A reliable alternate aggregated path when you want a different quote engine than Beam.

• Best for: An alternate aggregated route when Beam is not landing well
• Routing: Aggregated across every Solana venue
• On-chain extras: Configurable priority fee
• Quote token: SOL only

Jito — atomic bundles

Your transaction is bundled and sent directly to Jito's block engine, which forwards it to validators. Bundles are atomic and MEV-safe — your trade cannot be sandwiched.

• Best for: High-value trades where sandwich protection matters
• Routing: Jupiter Swap V2 /build for routing, Jito block engine for submission
• Speed: Slightly slower than Beam — bundle processing adds a little latency
• On-chain extras: Configurable priority fee plus a Jito tip
• Quote token: SOL only (USDC trades force Beam)

In the side panel, Jito exposes an Atomic Bundle checkbox: with it on, a multi-wallet buy from a group (up to 5 wallets) is sent as one atomic Jito bundle — all of them land in the same block, all-or-nothing, so your wallets never end up half-filled at different prices. One Jito tip covers the whole bundle.

Jito Settings

Open the preset bar (shown when Jito is selected) to configure:

• Slippage % — Bundles are atomic, so tighter slippage is safer.
• Priority Fee — SOL paid for transaction priority. Higher means faster block inclusion.
• Jito Tip — SOL paid to the validator to include your bundle.

Helius — highest landing rate

Helius Sender is the most aggressive path. Your transaction is submitted through two routes at once, and whichever lands first wins:

1. Staked connections (SWQOS) — Direct validator connections through Helius' staked infrastructure.
2. Jito bundle — Simultaneously submitted to Jito's block engine.

This dual-routing gives the highest probability of inclusion on contested launches.

• Best for: Time-sensitive trades, sniping, contested launches, or a congested network
• Speed: Fastest possible — two parallel paths
• On-chain extras: Configurable priority fee plus a tip (used as the Jito bribe when that path lands)
• Quote token: SOL only

Helius Settings

Helius uses the same preset fields as Jito — slippage, priority fee, and tip. The tip is used as the Jito bribe when the Jito path is the one that lands.

Engine Comparison