Introduction

@sei-js/registry provides typed constants for Sei chain info, tokens, networks, IBC channels, and gas configuration

Overview

The @sei-js/registry package provides fully typed TypeScript constants sourced from the official Sei chain registry and the community asset list. Use it to access chain metadata, network endpoints, token lists, IBC channel info, and gas configuration without hardcoding values.

Key Exports

Export	Description
CHAIN_IDS	Mainnet, testnet, and devnet chain ID strings
CHAIN_INFO	Core chain metadata (bech32 prefix, slip44, fee token, supported wallets)
NETWORKS	Network configs with RPC, REST, gRPC, EVM, and WebSocket endpoints
TOKEN_LIST	Community-maintained token list per network
IBC_INFO	IBC channel configurations per network
GAS_INFO	Gas denomination and pricing per network

Installation

npm

npm install @sei-js/registry

Quick Example

import { CHAIN_IDS, NETWORKS, TOKEN_LIST } from "@sei-js/registry";

// Get the mainnet chain ID
console.log(CHAIN_IDS.mainnet); // "pacific-1"

// Access mainnet RPC endpoints
const mainnet = NETWORKS["pacific-1"];
console.log(mainnet.rpc[0].url);

// Find the SEI token on mainnet
const sei = TOKEN_LIST["pacific-1"].find((t) => t.symbol === "sei");
console.log(sei?.name); // "Sei"