> For the complete documentation index, see [llms.txt](https://docs.rei.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rei.network/rei-network/welcome-to-rei-network.md).

# Welcome to REI Network

REI Network is not a new project, but an upgraded version of GXChain. REI was developed to better adapt to the development trend of the blockchain, and to achieve a lightweight, Ethereum compatible, higher performance, and no fee blockchain framework

## New Features

* Compatible with **EVM**
* Compatible with **Ethereum's RPC** and **Websocket** interfaces, and can support **GRPC** in the future
* Rewrite the network module and use **Libp2p** instead of **Devp2p** (current Ethereum client solution), because we believe that Libp2p has better standards and can achieve better versatility and scalability
* Realize lower resource consumption through the design of tokenomics ([**Gas Free**](/rei-dao/guides/stake-for-free-gas.md))
* Realize [**Systems contracts**](/developer/system-contracts.md) that can be soft-forked and upgraded. These contracts include: Staking/Slashing, ResourceManager and IBC contracts, etc.
* Achieve a more efficient and more random consensus: **DPoS+BFT**, to ensure decentralization and be more green power
* Realize the **abstract consensus module**, so that the code of REI Network can be easily combined and become a chain-making tool

## Entry Points

#### **REI Mainnet Settings:**

* **Network Name**: REI Network
* **RPC URL**: <https://rpc.rei.network>
* **ChainID**: `47805`
* **Symbol**: `REI`
* **Decimals**: `18`
* **Explorer**: <https://scan.rei.network>&#x20;

#### **REI Testnet Settings:**

* **Network Name**: REI Testnet
* **RPC URL**: <https://rpc-testnet.rei.network>
* **ChainID**: `12357`
* **Symbol**: `REI`
* **Decimals**: `18`
* **Explorer**: <https://scan-test.rei.network>&#x20;

## Quick Start

> A guide to start REI Network Node

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[Quick Start](/developer/quick-start.md)
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## API Reference

> Introduction to REI Network JSON-RPC specifications

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[API Reference](/developer/api-reference.md)
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## System Contracts

> Introduction to REI Network System contracts

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[System Contracts](/developer/system-contracts.md)
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**Good to know:**  The document is constantly being updated and improved, and you are welcome to ask us questions and suggestions&#x20;
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## Guides

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[Exchange Integration](/developer/guides/exchange-integration.md)
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[Using The Graph](/developer/guides/using-the-graph.md)
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[Using Gnosis Safe](/developer/guides/using-gnosis-safe.md)
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[Token Addresses](/developer/token-addresses.md)
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