Sei RPC
Sei
Sei is a high-performance Layer 1 blockchain with a focus on speed and efficiency to achieve a Web2-like experience. It runs transactions in parallel and uses an efficient consensus design to handle up to 200,000 TPS, with finality under 400 ms. It's fully EVM-compatible and processes transactions at sub-cent costs.
Interacting With Sei APIs
Sei exposes Ethereum-compatible JSON-RPC methods that allow developers to interact with the network programmatically. You can query blockchain state, send transactions, deploy and interact with smart contracts, and subscribe to real-time events via WebSocket.
您可以通过运行自己的节点，或使用Quicknode 等托管服务提供商来建立连接，该服务提供可靠、低延迟的访问，且无需管理基础设施。
The Quicknode Sei documentation is continuously updated, but we recommend cross-referencing with the official Sei documentation for the latest API details.
Make Sei API Calls
The quickest way to start building on Sei is to create a Quicknode endpoint and send your first request. Quicknode provides managed Sei endpoints, offering:
- 高可靠性——全球分布式基础设施，旨在最大限度地减少停机时间
- 性能提升——针对生产级应用程序优化了延迟和请求处理
请访问“快速入门”页面，创建您的endpoint 发送您的第一个请求。
支持的网络
Quicknode provides access to the following Sei networks:
Quicknode's Sei Pacific endpoints provide full archive data access starting from block height 1 (genesis).
For blocks >= 78309999:
Use the x-cosmos-block-height header with REST API requests or specify the height parameter with Tendermint API requests:
Cosmos REST API Example:
curl --location 'https://docs-demo.sei-pacific.quiknode.pro/cosmos/distribution/v1beta1/delegators/sei1xyp8xxely9txewfe7nes2nxrzr0qyrfghrj5cs/rewards' \
--header 'x-cosmos-block-height: 78309999'
Tendermint API Example:
curl --location 'https://docs-demo.sei-pacific.quiknode.pro/block?height=78309999'
For Sei EVM methods:
No special headers are required. The earliest block number for EVM methods is 79123881 (Sei V2 upgrade block).
Complete reference for developers building on Sei with Quicknode:
快速入门
Get started with Sei quickly. Follow our step-by-step quickstart to set up your endpoint and make your first API request.
提供商端点
Learn how to configure and manage your Sei endpoints for optimal performance and reliability.
API 概述
了解受支持的 API、网络、Quicknode 以及增强的 API 功能，用于构建功能强大的应用程序。
附加组件
Discover endpoint add-ons that extend your Sei development workflow.
Endpoint
通过身份验证、白名单和最佳安全实践来保护您的终端设备。
错误代码
Understand common error codes and troubleshooting steps for Sei API requests.