#navbar a[href="https://dashboard.helius.dev"] {
    background-color: #26262b;
    padding: 6px 6px 6px 16px;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

#navbar a[href="https://dashboard.helius.dev"]:hover {
    background-color: #3e3e47;
}

#navbar a[href="https://dashboard.helius.dev"] > div {
  color: #fff;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 450 !important; 
  font-style: normal !important;
}

#navigation-items {
  padding-left: 1rem;
  padding-right: 1rem;
}

#footer a {
  max-width: none !important;
}

.prose :where(a):not(:where([class~=not-prose],[class~=not-prose] *)) {
  border-color: rgb(var(--primary-light) / 0.8);
}

.prose :where(a):not(:where([class~=not-prose],[class~=not-prose] *)):hover {
  border-color: rgb(var(--primary-light) / 1);
}


Authorizations

Message

Response

Get the latest blockhash from the Solana blockchain using the LaserStream gRPC API.

GetLatestBlockhash

Helius Docs

Helius is an enterprise-grade Solana development platform offering best-in-class RPCs, APIs and data streaming services.

Overview

Welcome to Helius

Make your first API call using Helius in just a few steps.

Quickstart

Flexible pricing for all your needs. Switch plans or cancel at anytime. Start in under 5 seconds.

Plans & Rate Limits

Understanding how credits work across different RPC calls and APIs.

Credits

Everything you need to know about Helius prepaid credits

Prepaid Credits

Learn how to set up autoscaling to ensure uninterrupted service when you exceed your credit limits.

Autoscaling

Pay with Crypto

Learn how to quickly connect to Helius Solana RPC nodes

How to stop your Helius plans from being abused by malicious actors.

Protect Your Keys

In-depth technical insights into optimizing Solana RPC usage.

Optimization Techniques

RPC Optimization Techniques

Dedicated Nodes optimized for low latency and high performance

Dedicated Nodes

Step-by-step guide to ordering a dedicated Solana RPC node

How to Order

How to Order Dedicated Nodes

Getting Started

Getting Started with Dedicated Nodes

Understanding and using your Dedicated Node Dashboard

Dashboard

Dedicated Nodes Dashboard

Optimize Performance and Maintain Node Health

Best Practices

Dedicated Nodes Best Practices

Sending transactions on Solana requires careful optimization to ensure reliable delivery, especially during periods of network congestion. Helius provides several tools and features to help you maximize transaction confirmation rates and minimize latency.

Get started with sending transactions on Solana using Helius

Use Helius Smart Transactions to optimize your Solana transactions for maximum success rate

Smart Transactions

Use Helius Staked Connections for optimal transaction delivery on Solana

Staked Connections

Learn what priority fees are and why they matter on Solana

Priority Fees

Understanding Priority Fees

Explore Helius APIs and tools for efficiently querying, indexing, and retrieving data from the Solana blockchain to power your applications with comprehensive on-chain information.

Getting Data from Solana

Learn how to fetch Solana account data using Helius APIs

Get Accounts

How to get accounts

Learn how to efficiently query program accounts using Helius APIs

Get Program Accounts

How to get program accounts

Learn how to retrieve and parse Solana transactions using Helius APIs

Get Transactions

How to get transactions

Learn how to retrieve and query NFT data using Helius DAS API

Get NFTs

How to get NFTs

Learn how to retrieve and query SPL token data using Helius APIs

Get SPL Tokens

How to get SPL tokens

The Enhanced Transactions API provides parsed transaction data in a human-readable format. You can use it to parse individual or multiple transactions or fetch the complete historical transaction history for a specific address in a human-readable format.

Enhanced Transactions API

Get real-time data from the Solana blockchain.

Data Streaming

Get started with Helius data streaming in minutes.

Event listening allows you to monitor and respond to blockchain events in real-time without constant polling. Helius provides robust event listening capabilities through webhooks and websockets that notify your application when specific blockchain events occur.

Event Listening

Get started with Helius event listening in minutes

Event Listening Quickstart

Learn how to stake SOL on Solana using the Helius Node.js SDK with clean, programmatic flows

How to Stake With Helius Programmatically

The most cost-efficient way of minting large numbers of digital assets in crypto.

What is NFT compression on Solana?

ZK Compression is a generalized compression framework that allows developers to store data on Solana at a fraction of the cost.

What is ZK Compression on Solana?

SDKs

Helius offers access to Solana blockchain data through a comprehensive suite of APIs.

API Reference overview

Learn how to authenticate your Helius API requests

Authentication

Helius provides multiple endpoint types to suit different application needs. This guide outlines all available connection options for interacting with the Helius API.

Endpoints

Learn about common RPC error messages and potential solutions

API Reference

Solana RPC APIs

Solana APIs

Data Streaming APIs

Event Listening APIs

Deprecated APIs

GetLatestBlockhash

Authorizations

Message

Response

API Reference

Solana RPC APIs

Solana APIs

Data Streaming APIs

Event Listening APIs

Deprecated APIs

​Authorizations

​Message

​Response

Authorizations

Message

Response