# What Is XAI (XAI RPC)

- By Denis Perepelitsyn
- June 25, 2026
- [Web3 Infrastructure & RPC](/blog/?category=Web3%20Infrastructure%20%26%20RPC)

![What Is XAI (XAI RPC)](/img/blog/post84.png)

Crypto-Chief, a Web3 infrastructure provider for 70+ blockchains, now delivers RPC node access for [Xai ](https://crypto-chief.com/rpc/xai/)– a gaming-optimized Layer 3 built on Arbitrum Orbit.

## Key Takeaways

- **XAI is a Layer 3 blockchain built with Arbitrum Orbit and secured by Ethereum.**
- **The network is designed specifically for blockchain gaming, providing high throughput, low transaction costs, and seamless onboarding for traditional gamers.**
- **XAI hides blockchain complexity through wallet abstraction, gas subsidies, and backend transaction management.**
- **The ecosystem introduces Sentry Nodes, a unique monitoring layer that strengthens rollup security and rewards community participants.**
- **Full EVM compatibility allows existing Ethereum tools and smart contracts to work with minimal modification.**

## Table of Contents

- [What Is XAI?](#what-is-xai)
- [How XAI Works](#how-xai-works)
- [Core Technologies Behind XAI](#core-technologies-behind-xai)
- [XAI Network Architecture](#xai-network-architecture)
- [Frequently Asked Questions](#faq)

## What Is XAI?

XAI is a purpose-built Layer 3 blockchain created to solve one of blockchain gaming's biggest challenges: delivering true digital asset ownership without exposing players to blockchain complexity.

Unlike general-purpose networks, XAI focuses entirely on gaming infrastructure. It allows developers to integrate blockchain functionality directly into games while keeping wallets, transaction signing, and gas management largely invisible to players.

Instead of forcing users to learn Web3 before playing, XAI allows games to function much like traditional online games while recording ownership of digital assets on-chain.

The network combines three major technologies:

- **Ethereum as the settlement and security layer;**
- **Arbitrum Nitro for scalability;**
- **Arbitrum Orbit for customizable Layer 3 execution.**

## How XAI Works

### Layer 3 Architecture

Unlike most GameFi projects that deploy directly on Ethereum or Layer 2, XAI operates as an Arbitrum Orbit Layer 3 chain.

Its architecture consists of three layers:

- **Ethereum (Layer 1)**  
   - final settlement  
   - network security  
   - fraud verification
- **Arbitrum One (Layer 2)**  
   - optimistic rollup execution  
   - compressed transaction batches  
   - reduced gas costs
- **XAI (Layer 3)**  
   - gaming logic  
   - NFT ownership  
   - marketplace operations  
   - player interactions  
   - game-specific execution

This layered approach allows XAI to process gaming transactions independently while ultimately inheriting Ethereum's security guarantees.

### Arbitrum Orbit Infrastructure

XAI is built using Arbitrum Orbit, a framework that enables developers to launch custom Layer 2 or Layer 3 blockchains.

Orbit gives XAI the flexibility to optimize:

- **block production**
- **transaction throughput**
- **fee structure**
- **governance**
- **execution environment**

Instead of competing for resources with every Ethereum application, XAI operates on infrastructure dedicated specifically to gaming workloads.

### Optimistic Rollup Technology

Like other Orbit chains, XAI relies on Optimistic Rollups.

Transactions are first executed off-chain before being compressed into batches and submitted to Ethereum.

This provides several advantages:

- **significantly lower gas fees;**
- **higher transaction throughput;**
- **reduced congestion;**
- **Ethereum-backed security through fraud proofs.**

For gaming applications that generate thousands of microtransactions every minute, batching dramatically reduces operational costs.

## Core Technologies Behind XAI

### Wallet Abstraction

One of XAI's primary innovations is removing blockchain friction for gamers.

Traditional blockchain games require users to:

- **install wallets;**
- **securely store seed phrases;**
- **purchase cryptocurrency;**
- **manually sign every transaction.**

XAI abstracts these operations into the backend.

Games can automatically create and manage blockchain accounts while preserving player ownership of digital assets.

As a result, users experience gameplay similar to traditional online games without interacting directly with blockchain infrastructure.

### Gas Fee Optimization

Gas fees remain one of the largest barriers to blockchain gaming adoption.

XAI introduces multiple optimization mechanisms:

- **low-cost Layer 3 execution;**
- **transaction batching;**
- **optional gas subsidies;**
- **backend fee management.**

Developers can even choose to pay transaction fees on behalf of players, eliminating one of the biggest onboarding obstacles for mainstream audiences.

### Backend Blockchain Processing

Rather than exposing blockchain operations to players, XAI performs many interactions behind the scenes.

Examples include:

- **NFT minting;**
- **marketplace transfers;**
- **inventory updates;**
- **asset synchronization;**
- **transaction broadcasting.**

This architecture enables games to retain blockchain ownership while delivering Web2-level usability.

### Full EVM Compatibility

Because XAI is EVM-compatible, developers can reuse existing Ethereum infrastructure.

Benefits include:

- **Solidity smart contracts;**
- **MetaMask compatibility;**
- **Ethereum developer tools;**
- **existing SDKs;**
- **familiar deployment workflows.**

This significantly lowers migration costs for studios already building within the Ethereum ecosystem.

## XAI Network Architecture

### Sentry Nodes

Unlike conventional validator-only models, XAI introduces Sentry Nodes.

Their primary responsibility is monitoring the integrity of the rollup rather than producing blocks.

Sentry Nodes continuously observe network activity and verify that proposed rollup batches follow protocol rules.

If an invalid state transition or fraudulent block proposal is detected, Sentry Nodes alert the network so the fraud-proof mechanism can be triggered.

This additional monitoring layer strengthens rollup security while allowing community members to participate in protecting the network. Operators receive ecosystem rewards for maintaining active nodes.

### Data Availability Committee (DAC)

XAI also incorporates a Data Availability Committee (DAC).

The committee ensures that rollup transaction data remains accessible for verification and dispute resolution.

Reliable data availability is essential because optimistic rollups depend on participants being able to reconstruct transaction history whenever fraud proofs must be submitted.

DAC members therefore contribute to both network resilience and rollup security.

### Digital Asset Ownership

Every in-game asset can exist as an on-chain object.

Players retain ownership of:

- **characters;**
- **equipment;**
- **skins;**
- **collectibles;**
- **marketplace items.**

Since ownership is recorded on-chain rather than within centralized game servers, assets can be freely transferred, traded, or integrated into compatible applications without relying solely on the game publisher.

### XAI Token Utility

The native XAI token supports network operation by enabling:

- **payment of transaction fees;**
- **ecosystem incentives;**
- **rewards for Sentry Node operators;**
- **in-game economic interactions.**

In addition, the ecosystem includes esXAI, a non-transferable reward token primarily used to incentivize node participation and long-term ecosystem engagement.

### Why XAI Is Different From Other Gaming Blockchains

XAI combines several technologies that specifically target blockchain gaming rather than general-purpose decentralized applications.

Its distinguishing characteristics include:

- **dedicated Layer 3 architecture for gaming;**
- **Ethereum security with Arbitrum scalability;**
- **backend wallet abstraction;**
- **subsidized transaction fees;**
- **community-operated Sentry Nodes;**
- **full EVM compatibility;**
- **seamless on-chain ownership of game assets.**

Together, these features allow developers to build blockchain-enabled games that closely resemble traditional online games from the player's perspective while preserving the transparency and ownership benefits of Web3.

_This content is for informational and educational purposes only and does not constitute financial, investment, or legal advice._

## Frequently Asked Questions

### What is XAI blockchain?

XAI is a Layer 3 blockchain built with Arbitrum Orbit that provides infrastructure specifically designed for blockchain gaming.

### Is XAI built on Ethereum?

Yes. XAI ultimately settles transactions on Ethereum while using Arbitrum technology to improve scalability and reduce transaction costs.

### What are Sentry Nodes?

Sentry Nodes monitor the XAI rollup for invalid state transitions and help secure the network by detecting fraudulent block proposals.

### How does XAI improve blockchain gaming?

XAI removes blockchain complexity through wallet abstraction, backend transaction management, and lower transaction fees while preserving on-chain ownership of game assets.

### Is XAI compatible with Ethereum smart contracts?

Yes. XAI is fully EVM-compatible, allowing developers to deploy Solidity smart contracts and use familiar Ethereum development tools.

Tags: [XAI](/blog/?tag=XAI) [Layer 3](/blog/?tag=Layer%203) [Arbitrum Orbit](/blog/?tag=Arbitrum%20Orbit) [Gaming Blockchain](/blog/?tag=Gaming%20Blockchain) [RPC Node](/blog/?tag=RPC%20Node)