このページは英語からの機械翻訳を使用しており、誤りや不明瞭な表現が含まれている可能性があります。最も正確な情報については、オリジナルの英語版をご覧ください。頻繁な更新のため、一部のコンテンツはオリジナルの英語になっている可能性があります。Crowdinでの取り組みに参加して、このページの翻訳改善にご協力ください。 (Crowdin translation page, Contributing guide)

Foundation Setup

Get a high-level overview of Kaia and the essentials to begin building.

Quick Overview

Kaia is an EVM-compatible blockchain designed for speed, security, and scalability. It uses the Kaia Virtual Machine (KVM), which is fully compatible with Ethereum tools and supports Solidity smart contracts. If you're coming from Ethereum, you'll find the transition straightforward--most of your existing code and workflows will work with minimal changes.

For more details on Kaia's architecture, check out Why Build on Kaia and Consensus Mechanism.

Kaia Networks

Kaia has two main networks:

• Kairos Testnet: For testing and development. Chain ID: 1001. Use it to experiment without real costs.
• Mainnet: For production. Chain ID: 8217.

Configure your wallet or tools with these RPC endpoints:

• Kairos: https://public-en-kairos.node.kaia.io
• Mainnet: https://public-en.node.kaia.io

Explore blocks and transactions on Kaiascan (Mainnet) or Kairos Kaiascan.

Development Tools

Kaia supports popular Ethereum tools with some extensions for its features. Key resources:

• SDKs: Use ethers-ext (extension of ethers.js), web3js-ext, or others for interacting with the network.
• Public RPC Endpoints: Access via Public RPC Endpoints.
• Solidity: Write contracts in Solidity--Kaia is fully compatible.
• Kaia Contracts Wizard: An interactive generator to bootstrap your smart contract and learn about Kaia Contracts.
• Other tools: Remix IDE with Kaia Plugin, Hardhat, Foundry, and Thirdweb.