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@dedot/chain-specs

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@dedot/chain-specs

Well-known chain specs for light clients (Smoldot)

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0.10.0
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@dedot/chain-specs

A collection of well-known chain specifications for connecting to Polkadot, Kusama, and testnet networks using Dedot with the Smoldot light client.

This package provides optimized chain specs with full ESM and CommonJS support via subpath exports, allowing you to import individual network specifications on-demand.

This package is a fork of @substrate/connect-known-chains with customizations!

Installation

# npm
npm install @dedot/chain-specs

# yarn
yarn add @dedot/chain-specs

# pnpm
pnpm add @dedot/chain-specs

Usage

Basic Usage

Import chain specs and use them with Dedot and Smoldot:

import { DedotClient, SmoldotProvider } from 'dedot';
import { start } from 'dedot/smoldot';
import { chainSpec } from '@dedot/chain-specs/polkadot';

const smoldot = start();
const chain = await smoldot.addChain({ chainSpec });
const provider = new SmoldotProvider(chain);
const client = await DedotClient.new(provider);

Importing Multiple Networks

// Import specific networks
import { chainSpec as polkadot } from '@dedot/chain-specs/polkadot';
import { chainSpec as kusama } from '@dedot/chain-specs/ksmcc3';
import { chainSpec as assetHub } from '@dedot/chain-specs/polkadot_asset_hub';

// Or import all at once
import { polkadot, ksmcc3, polkadot_asset_hub } from '@dedot/chain-specs';

Supported Networks

  • polkadot - Polkadot relay chain
  • polkadot_asset_hub - Polkadot Asset Hub parachain
  • polkadot_bridge_hub - Polkadot Bridge Hub parachain
  • polkadot_collectives - Polkadot Collectives parachain
  • polkadot_people - Polkadot People parachain
  • ksmcc3 - Kusama relay chain
  • ksmcc3_asset_hub - Kusama Asset Hub parachain
  • ksmcc3_bridge_hub - Kusama Bridge Hub parachain
  • ksmcc3_people - Kusama People parachain
  • westend2 - Westend testnet relay chain
  • westend2_asset_hub - Westend Asset Hub parachain
  • westend2_bridge_hub - Westend Bridge Hub parachain
  • westend2_collectives - Westend Collectives parachain
  • westend2_people - Westend People parachain
  • paseo - Paseo testnet
  • paseo_asset_hub - Paseo Asset Hub
  • paseo_bridge_hub - Paseo Bridge Hub
  • paseo_collectives - Paseo Collectives
  • paseo_people - Paseo People

Documentation

For more information on connecting to networks with Dedot and Smoldot, visit the Dedot documentation.

License

MIT

FAQs

Package last updated on 12 Mar 2026

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