Sei RPC
Présentation de 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.
You can connect by running your own node or by using a hosted provider such as Quicknode, which offers reliable, low-latency access without the need to manage infrastructure.
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:
- High reliability — globally distributed infrastructure designed to minimize downtime
- Enhanced performance — optimized latency and request handling for production-grade apps
Visitez la page QuickStart pour créer votre endpoint et envoyer votre première requête.
Réseaux pris en charge
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:
Utilisez le 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:
Démarrage rapide
Get started with Sei quickly. Follow our step-by-step quickstart to set up your endpoint and make your first API request.
Points d'accès du fournisseur
Learn how to configure and manage your Sei endpoints for optimal performance and reliability.
Présentation de l'API
Explorez les API, réseaux, produits Quicknode pris en charge et les fonctionnalités API améliorées pour créer des applications puissantes.
Marketplace
Découvrez et intégrez des modules complémentaires et des outils puissants du Quicknode Marketplace pour améliorer vos applications web3.
Sécurité des points de terminaison
Sécurisez vos points d'accès avec l'authentification, la liste blanche et les meilleures pratiques de sécurité.
Codes d'erreur
Understand common error codes and troubleshooting steps for Sei API requests.