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Kaia Documentation

website·Indexed 35 days ago

https://docs.kaia.io/

Resources for building and operating on the Kaia EVM-based blockchain, covering smart contracts, wallets, transactions, gas abstraction, and node infrastructure including Endpoint Nodes, Core Cells, and Service Chains.

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What's inside Kaia

  1. Scale Kaia Applications with Service Chains

    Kaia achieves scalability through Service Chains (auxiliary blockchains) and a multi-channel architecture. This setup ensures high throughput, efficient network communication, and secure data anchoring.

  2. Get started with Kaia development

    To begin developing on Kaia, developers should follow these foundational steps: 1. Review the architecture and essential tools in the Foundation Setup guide. 2. Configure a compatible wallet to connect to Kaia networks. 3. Obtain KAIA tokens via Faucets or Exchanges. 4. Deploy a first contract using tools like Remix (for a simple 'Hello World' contract) or Hardhat (for Soulbound Tokens).

  3. Configure and manage wallets for Kaia networks

    Kaia supports various wallet types and integrations for managing assets and interacting with the blockchain. Developers can configure popular wallets for Kaia networks, implement secure wallet management practices, and perform operations such as sending tokens and estimating gas limits/prices in Kaia Wallet and MetaMask.

  4. Install and configure Kaia Endpoint Nodes

    Endpoint Nodes (EN) provide access to the Kaia network. They can be installed on a server or run using Docker. The ken binary (Kaia Endpoint Node) is used for node management via CLI commands. Endpoint Nodes expose JSON-RPC APIs for HTTP, WebSocket, and IPC, which can be enabled, disabled, or queried using specific flags or configuration settings.

  6. Manage Kaia Transaction Computation Costs

    Kaia manages transaction execution time by limiting block execution time and transaction computation cost rather than relying solely on gas. Computation is modeled per opcode. Developers should use provided tools to estimate these costs, as limits may be updated following hard forks.

  7. Implement transactions and fee delegation on Kaia

    Kaia supports basic and Ethereum-compatible transaction types. A key feature is Fee Delegation (and Partial Fee Delegation), which allows for gas abstraction. Developers can also optimize gas fees in Solidity smart contracts using the provided cookbooks.

  8. Synchronize Kaia Nodes and Manage Storage

    Kaia nodes synchronize blockchain data using full or archive modes. To optimize storage and reduce the footprint of the blockchain data, Kaia employs batch and live state pruning, which deletes obsolete states while preserving necessary recent data. Chaindata snapshots can be used to accelerate the synchronization process.

  9. Ensure High Availability for Core Cell nodes

    To maintain continuous Core Cell operation, implement high availability using one of two methods:

    1. Bare-metal: Set up active-standby Consensus Nodes (CNs) for manual failover.
    2. Cloud: Use cloud snapshots for rapid, automatic node replacement.

  10. Integrate Kaia SDK with popular Ethereum libraries

    The Kaia SDK provides extensions to integrate with standard Ethereum development libraries. Guides are available for the following extensions:

    • Ethers.js
    • Web3.js
    • Web3.j (Java)
    • Web3.py (Python)
    • Viem

  11. Install and configure Kaia Core Cell nodes

    Core Cells consist of Consensus Nodes (CN) and Proxy Nodes (PN). To install either, download the latest Kaia release, extract it, and configure the kscnd.conf file with network settings before starting the node using the kscnd binary. Network configuration requires setting up secure subnets for CN, PN, and Management layers with specific open ports.