> ## 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.

# Sender FAQs

> Get answers to the most common questions about Helius Sender including functionality, configuration, and rate limits

## Using Sender

> [accordion] What is Sender and why is it faster than other transaction sending services?
>
> Sender is a specialized service for ultra-low latency transaction submission. It optimizes transaction latency by sending across all pathways — including Helius, [Jito](https://docs.jito.wtf/), Harmonic, and Rakurai — simultaneously, providing multiple pathways for your transactions to be included in blocks.
>
> With seven regional endpoints, typical land-time is ≤ 1.5 slots.

> [accordion] Can I get a higher Sender API limit than 50 transactions per second (TPS)?
>
> Yes! While the standard limit is 50 TPS per region, you can request higher limits and custom tip arrangements by [speaking with our sales team](https://www.helius.dev/contact).

> [accordion] How do I set tips and priority fees with Sender?
>
> All transactions sent through Sender must include both a tip and a priority fee for optimal performance:
>
> **Tips**: The minimum tip depends on the tier you use. [SWQOS-only](https://www.helius.dev/docs/sending-transactions/sender-swqos-only.md) requires a minimum 0.000005 SOL tip, while [Sender Max](https://www.helius.dev/docs/sending-transactions/sender-max.md) requires a minimum 0.001 SOL tip, routes across every high-speed pathway, and enters your transaction into a priority tip buffer.
>
> **Priority Fees**: Use `ComputeBudgetProgram.setComputeUnitPrice` to prioritize your transaction in the validator queue. Use the [Priority Fee API](https://www.helius.dev/docs/priority-fee-api.md) for real-time fee recommendations.
>
> **Why both are required**: Tips give you access to Sender's prioritized routing pathways and the priority tip buffer, while priority fees improve your transaction's priority with validators—together they maximize inclusion probability.
>
> See the [Sender documentation](https://www.helius.dev/docs/sending-transactions/sender.md) for detailed code examples and implementation guidelines.

***

## Need More Help?

> [card] [Contact Support](https://www.helius.dev/docs/support/contact-support)
>
> Get help from our team through Discord, chat, or email support.

> [card] [Status Page](https://www.helius.dev/docs/support/status-page)
>
> Check real-time service availability and performance information.


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