Source repository: github.com/paritytech/chainspecs
A chain specification, or "chainspec", is a collection of configuration information that dictates which network a blockchain node will connect to, which entities it will initially communicate with, and what consensus-critical state it must have at genesis.
You can download chainspec and save it as chainspec.json file, then start the substrate node with the --chain ./chainspec.json flag.
⚠️ For some nodes, you may save chainspec with a different name see
⚠️ For production, it is better to use the chainspec provided in the binary (e.g.,--chain kusama). This repo is designed to contain the latest chainspecs before release (for test purposes).
⚠️ All chainspecs are sourced from the default development branch, not the last release. Source repositories (git submodules) are updated once a week.
- Polkadot
 - Polkadot AssetHub
 - Polkadot BridgeHub
 - Polkadot Collectives
 - Polkadot Acala
 - Polkadot Clover
 - Polkadot Moonbeam
 - Polkadot Astar
 - Polkadot Crust
 - Polkadot Parallel
 - Polkadot Litentry
 - Polkadot Composable
 - Polkadot Sora
 - Polkadot nodle
 - Polkadot Bifrost
 - Polkadot Centrifuge
 - Polkadot Interlay
 - Polkadot HydraDX
 - Polkadot Phala
 - Polkadot Unique
 - Polkadot Integritee
 - Polkadot Polkadex
 - Polkadot NeuroWeb
 - Polkadot Darwinia
 - Polkadot Bitgreen
 - Polkadot Ajuna
 - Polkadot OmniBTC
 - Polkadot Aventus
 - Polkadot Watr
 - Polkadot OAK
 - Polkadot KILT Spiritnet
 - Polkadot Frequency
 - Polkadot Zeitgeist
 - Polkadot Hashed
 - Polkadot Pendulum
 - Polkadot Subsocial
 - Polkadot Manta
 - Polkadot t3rn
 - Polkadot peaq
 - Polkadot InvArch
 - Polkadot Polimec
 - Polkadot Energy Web X
 - Polkadot Continuum
 - Polkadot Logion
 - Polkadot Hyperbridge (Nexus)
 - Polkadot Mythos
 - Polkadot Laos
 - 2,003
 - 2,055
 - 2,106
 - 3,360
 - 3,366
 
- Kusama
 - Kusama AssetHub
 - Kusama BridgeHub
 - Kusama Coretime
 - Kusama People
 - Kusama Encointer
 - Kusama Integritee
 - Kusama Karura
 - Kusama Bifrost
 - Kusama Khala
 - Kusama Shiden
 - Kusama SORA
 - Kusama Crust
 - Kusama Moonriver
 - Kusama Genshiro
 - Kusama Robonomics
 - Kusama Calamari
 - Kusama Parallel Heiko
 - Kusama Picasso
 - Kusama Basilisk
 - Kusama QUARTZ by UNIQUE
 - Kusama Pioneer
 - Kusama Crab
 - Kusama Litmus (removed litentry/heima#3018)
 - Kusama Mangata
 - Kusama Kabocha
 - Kusama Turing Network
 - Kusama Bajun Network
 - Kusama Imbue Network
 - Kusama GM
 - Kusama InvArch Tinkernet
 - Kusama DAO IPCI
 - Kusama ZERO Canary
 - Kusama Acurast Canary
 - Kusama Krest
 - Kusama Quantum Portal Network
 - Kusama Kreivo - By Virto
 - Kusama t1rn
 - Kusama Curio
 - Kusama Hyperbridge (Messier)
 - Kusama Xode
 - Kusama Yerba Network
 - 2,233
 - 2,275
 - 3,338
 - 3,343
 - 3,350