Skip to main content

​
Overview

Pricing update: Sender Max now uses a 0.001 SOL minimum tip to access Helius’ priority transaction buffer — tip more to land first. The cost-optimized SWQOS-only tier remains at 0.000005 SOL.
Helius gives traders a complete low-latency toolkit. Whatever your strategy — propAMMs, snipers, copy traders, liquidation bots, or arbitrage — it comes down to two things: see faster and act faster.

See

Preconfirmations — stream scheduled transactions at the lowest possible latency, before they land.

Act

Helius Sender — land transactions and bundles ahead of the competition with multi-path routing and a priority tip buffer.

​
Choose the right product

​
See: Preconfirmations and Shreds

Preconfirmations stream transactions the moment a validator’s scheduler commits to executing them — before they are shredded. It is the earliest transaction signal available, delivered over a preconfSubscribe WebSocket subscription. Requires a Professional plan or higher; metered at 10 credits per message. Shred Delivery gives you Solana’s raw network data — shreds — over UDP. Best for propAMMs, snipers, copy traders, liquidation bots, arbitrage, and RPC node operators who want to remove network sync latency. If you’d rather skip deshredding, preprocessedSubscribe streams the decoded, pre-execution transactions over WebSocket (public beta).

​
Act: Helius Sender

Helius Sender is the trader’s path for landing transactions. It consumes no credits — you pay per send with a SOL tip — and offers two tiers:

Sender Max

Routed across every high-speed pathway and entered into a priority tip buffer. Handles both transactions and bundles. Minimum 0.001 SOL tip.

Sender SWQOS-Only

Cost-optimized low-latency sending on a single fast path. Minimum 0.000005 SOL tip.

Data Streaming & Event Listening

The full streaming hub — compare LaserStream, WebSockets, Webhooks, and Shred Delivery for any data workload.

LaserStream

gRPC streaming for confirmed and historical onchain data.