magicblock

MagicBlock Ephemeral Rollups Guide

A comprehensive guide for building high-performance Solana applications with MagicBlock Ephemeral Rollups - enabling sub-10ms latency and gasless transactions.

Overview

MagicBlock Ephemeral Rollups (ER) are specialized SVM runtimes that enhance Solana with:

• Sub-10ms latency (vs ~400ms on base Solana)
• Gasless transactions for seamless UX
• Full composability with existing Solana programs
• Horizontal scaling via on-demand rollups

Architecture

┌─────────────────────────────────────────────────────────────┐
│                      Your Application                        │
├─────────────────────────────────────────────────────────────┤
│  Base Layer (Solana)          │  Ephemeral Rollup (ER)      │
│  - Initialize accounts        │  - Execute operations       │
│  - Delegate accounts          │  - Process at ~10-50ms      │
│  - Final state commits        │  - Zero gas fees            │
│  - ~400ms finality            │  - Commit state to Solana   │
└─────────────────────────────────────────────────────────────┘

Core Flow

1. Initialize - Create accounts on Solana base layer
2. Delegate - Transfer account ownership to delegation program
3. Execute - Run fast operations on Ephemeral Rollup
4. Commit - Sync state back to base layer
5. Undelegate - Return ownership to your program

Prerequisites

# Required versions
Solana: 2.3.13
Rust: 1.85.0
Anchor: 0.32.1
Node: 24.10.0

# Install Anchor (if needed)
cargo install --git https://github.com/coral-xyz/anchor anchor-cli

Quick Start

1. Add Dependencies (Cargo.toml)

[dependencies]
anchor-lang = "0.32.1"
ephemeral-rollups-sdk = { version = "0.6.5", features = ["anchor", "disable-realloc"] }

2. Program Setup (lib.rs)

use anchor_lang::prelude::*;
use ephemeral_rollups_sdk::anchor::{delegate_account, commit_accounts, ephemeral};
use ephemeral_rollups_sdk::cpi::DelegationProgram;

declare_id!("YourProgramId111111111111111111111111111111");

#[ephemeral]  // Required: enables ER support
#[program]
pub mod my_program {
    use super::*;

    pub fn initialize(ctx: Context<Initialize>) -> Result<()> {
        ctx.accounts.state.value = 0;
        Ok(())
    }

    #[delegate]  // Auto-injects delegation accounts
    pub fn delegate(ctx: Context<Delegate>) -> Result<()> {
        Ok(())
    }

    pub fn increment(ctx: Context<Update>) -> Result<()> {
        ctx.accounts.state.value += 1;
        Ok(())
    }

    #[commit]  // Auto-injects commit accounts
    pub fn undelegate(ctx: Context<Undelegate>) -> Result<()> {
        Ok(())
    }
}