# Helius Documentation

The engine behind Solana’s best teams, traders, and tinkerers. RPCs, APIs, gRPC streaming, webhooks, and dedicated infrastructure to build and ship crypto apps, fast.

## Get Started

[**Quickstart**  
Create a free account and make your first API call in seconds](/content/docs/quickstart/index.html)

[**Plans and pricing**  
Compare plans from the free tier to enterprise, plus credits and rate limits](/content/docs/billing/plans/index.html)

## Data Streaming & Event Listening

[**Data streaming overview**  
Choose the right way to stream on-chain data and listen for events](/content/docs/data-streaming/index.html)

[**LaserStream gRPC**  
High-performance gRPC streaming with historical replay and delivery guarantees](/content/docs/laserstream/index.html)

[**LaserStream WebSocket**  
WebSocket subscriptions for accounts, transactions, and program activity](/content/docs/rpc/websocket/index.html)

[**Webhooks**  
Real-time HTTP notifications for the addresses and events you care about](/content/docs/webhooks/index.html)

## Data APIs & RPCs

[**Getting data**  
Read and query on-chain data with standard and Helius-exclusive RPC methods](/content/docs/getting-data/index.html)

[**getTransactionsForAddress**  
Full, parsed transaction history for any address in a single call](/content/docs/rpc/gettransactionsforaddress/index.html)

[**Wallet API**  
Balances, token holdings, and transaction history through REST endpoints](/content/docs/wallet-api/overview/index.html)

[**DAS API**  
The Digital Asset Standard API for tokens, NFTs, and compressed NFTs](/content/docs/das-api/index.html)

## Trading

[**Trading overview**  
Low-latency infrastructure for traders, market makers, and exchanges](/content/docs/trading/overview/index.html)

[**Pre Confirmations**  
Sub-slot confirmation signals so you can act before the block lands](/content/docs/pre-confirmations/overview/index.html)

[**Shred Delivery**  
The fastest path to transaction data, streamed as raw or preprocessed shreds](/content/docs/shred-delivery/index/index.html)

[**Sender**  
Land transactions reliably with dual routing to validators and Jito](/content/docs/sending-transactions/sender/index.html)

## Sending Transactions

[**Sending transactions overview**  
Build, optimize, and land transactions with priority fees, retries, and bundles](/content/docs/sending-transactions/overview/index.html)

[**Priority Fee API**  
Estimate the right priority fee to land transactions fast without overpaying](/content/docs/priority-fee-api/index.html)

[**Backrun rebates**  
Earn rebates on the backrun MEV your transactions create](/content/docs/sending-transactions/backrun-rebates/index.html)

[**MEV Protect**  
Route transactions privately to reduce frontrunning and sandwich attacks](/content/docs/sending-transactions/mev-protect/index.html)

## The Solana Privacy Protocol

[**Overview**  
Programmable privacy for transfers and swaps with native Solana performance](/content/docs/privacy/index.html)

[**Concepts**  
How Solana Rings work, user flows, and privacy guarantees](/content/docs/privacy/concepts/index.html)

## Additional Resources

[**SDKs**  
Official TypeScript and Rust SDKs for the Helius API](/content/docs/sdks/index.html)

[**API reference**  
Complete method reference for every Helius RPC and REST endpoint](/content/docs/api-reference/index.html)

[**Helius for Agents**  
The MCP server, CLI, expert skills, and SDKs for building AI agents](/content/docs/agents/overview/index.html)

[**RPC Benchmarks**  
Open-source latency and reliability comparisons vs other providers](/content/benchmarks/index.html)

[**Ask the AI assistant**  
Get instant answers from the docs assistant, trained on everything here](/content/docs?assistant/index.html)

[**Support**  
Reach the Helius team through chat, email, or the status page](/content/docs/support/index.html)

[**Discord**  
Join the community for help, updates, and discussion](https://discord.com/invite/6GXdee3gBj)