> ## Documentation Index
> Fetch the complete documentation index at: https://www.helius.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Trading on Solana with Helius

> Build a low-latency Solana trading stack with Helius: see the market first with Preconfirmations and land trades ahead of the competition with Sender.

## Overview

> [!NOTE]
>
> **Pricing update:** [Sender Max](https://www.helius.dev/docs/sending-transactions/sender-max.md) now uses a
> **0.001 SOL** minimum tip to access Helius' priority transaction buffer — tip more to land
> first. The cost-optimized
> [SWQOS-only](https://www.helius.dev/docs/sending-transactions/sender-swqos-only.md) tier remains at 0.000005
> SOL.

Helius gives traders a complete low-latency toolkit. Whatever your strategy — propAMMs, snipers, copy traders, or liquidation bots — it comes down to two things: **see faster and act faster**.

> [card] [See](https://www.helius.dev/docs/pre-confirmations/overview.md)
>
> **Preconfirmations** — stream transactions at the lowest possible
> latency, before they land.

> [card] [Act](https://www.helius.dev/docs/sending-transactions/sender.md)
>
> **Helius Sender** — land transactions and bundles ahead of the competition
> with multi-path routing and a priority tip buffer.

## Choose the right product

| You want to… | Use |
| - | - |
| React to onchain activity as early as possible | [Preconfirmations](https://www.helius.dev/docs/pre-confirmations/overview.md) |
| Access Solana's raw network data | [Shred Delivery](https://www.helius.dev/docs/shred-delivery/raw-shreds.md) |
| Land a trade or bundle ahead of competitors | [Sender Max](https://www.helius.dev/docs/sending-transactions/sender-max.md) |
| Trade cost-efficiently on a single fast path | [Sender SWQOS-Only](https://www.helius.dev/docs/sending-transactions/sender-swqos-only.md) |
| Protect transactions from sandwich attacks | [MEV Protect](https://www.helius.dev/docs/sending-transactions/mev-protect.md) |

## See: Preconfirmations and Shreds

[Preconfirmations](https://www.helius.dev/docs/pre-confirmations/overview.md) stream transactions before they are shredded — Helius preconfirmations the instant the leader executes them, together with their execution status, and BAM preconfirmations when the validator commits to executing them. It is the earliest transaction signal available, delivered over a [`preconfSubscribe` WebSocket subscription](https://www.helius.dev/docs/pre-confirmations/preconf-subscribe). It is available on **all paid plans** and metered at **10 credits per delivered message**. Zero-message slots cost zero; slots with one or more delivered messages have a 300-credit minimum per subscription.

[Shred Delivery](https://www.helius.dev/docs/shred-delivery/raw-shreds.md) gives you Solana's raw network data — shreds — over UDP. Best for propAMMs, snipers, copy traders, liquidation bots, and RPC node operators who want to remove network sync latency. If you'd rather skip deshredding, [`preprocessedSubscribe`](https://www.helius.dev/docs/preprocessed-transactions/preprocessed-subscribe) streams the decoded, pre-execution transactions over WebSocket (public beta).

## Act: Helius Sender

[Helius Sender](https://www.helius.dev/docs/sending-transactions/sender.md) is the trader's path for landing transactions. It consumes no credits — you pay per send with a SOL tip — and offers two tiers:

> [card] [Sender Max](https://www.helius.dev/docs/sending-transactions/sender-max.md)
>
> Routed across every high-speed pathway and entered into a priority tip
> buffer. Handles both transactions and bundles. Minimum 0.001 SOL tip.

> [card] [Sender SWQOS-Only](https://www.helius.dev/docs/sending-transactions/sender-swqos-only.md)
>
> Cost-optimized low-latency sending on a single fast path. Minimum 0.000005
> SOL tip.

## Related

> [card] [Data Streaming & Event Listening](https://www.helius.dev/docs/data-streaming.md)
>
> The full streaming hub — compare LaserStream, WebSockets, Webhooks, and Shred
> Delivery for any data workload.

> [card] [LaserStream](https://www.helius.dev/docs/laserstream.md)
>
> gRPC streaming for confirmed and historical onchain data.


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