> ## 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](/docs/sending-transactions/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](/docs/sending-transactions/sender-swqos-only) tier remains at 0.000005
  SOL.
</Note>

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**.

<CardGroup cols={2}>
  <Card title="See" icon="bolt" href="/docs/pre-confirmations/overview">
    **Preconfirmations** — stream scheduled transactions at the lowest possible
    latency, before they land.
  </Card>

  <Card title="Act" icon="rocket" href="/docs/sending-transactions/sender">
    **Helius Sender** — land transactions and bundles ahead of the competition
    with multi-path routing and a priority tip buffer.
  </Card>
</CardGroup>

## Choose the right product

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

## See: Preconfirmations and Shreds

[Preconfirmations](/docs/pre-confirmations/overview) 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](/docs/pre-confirmations/preconf-subscribe). Requires a **Professional plan or higher**; metered at **10 credits per message**.

[Shred Delivery](/docs/shred-delivery/raw-shreds) 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`](/docs/preprocessed-transactions/preprocessed-subscribe) streams the decoded, pre-execution transactions over WebSocket (public beta).

## Act: Helius Sender

[Helius Sender](/docs/sending-transactions/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:

<CardGroup cols={2}>
  <Card title="Sender Max" icon="trophy" href="/docs/sending-transactions/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.
  </Card>

  <Card title="Sender SWQOS-Only" icon="dollar-sign" href="/docs/sending-transactions/sender-swqos-only">
    Cost-optimized low-latency sending on a single fast path. Minimum 0.000005
    SOL tip.
  </Card>
</CardGroup>

## Related

<CardGroup cols={2}>
  <Card title="Data Streaming & Event Listening" icon="tower-broadcast" href="/docs/data-streaming">
    The full streaming hub — compare LaserStream, WebSockets, Webhooks, and Shred
    Delivery for any data workload.
  </Card>

  <Card title="LaserStream" icon="bolt" href="/docs/laserstream">
    gRPC streaming for confirmed and historical onchain data.
  </Card>
</CardGroup>