seichain is a blockchain built using Cosmos SDK and Tendermint and created with Starport.

Get started

You may use starport to run the chain, but typically we have our own customizations that require using an internal tool (seid). Both methods are shown below.


starport chain serve

serve command installs dependencies, builds, initializes, and starts your blockchain in development.

Internal tool

First build the tool

go build -o build/seid ./cmd/sei-chaind/

If you’ve run the chain before, you may have leftover cruft. Run the following to reset the state.

./build/seid unsafe-reset-all

Next, initialize the chain. This creates the genesis field:

./build/seid init demo --chain-id sei-chain

Finally, start the chain:

./build/seid start


Your blockchain in development can be configured with config.yml. To learn more, see the Starport docs.

Web Frontend

Starport has scaffolded a Vue.js-based web app in the vue directory. Run the following commands to install dependencies and start the app:

cd vue
npm install
npm run serve

The frontend app is built using the @starport/vue and @starport/vuex packages. For details, see the monorepo for Starport front-end development.


To release a new version of your blockchain, create and push a new tag with v prefix. A new draft release with the configured targets will be created.

git tag v0.1
git push origin v0.1

After a draft release is created, make your final changes from the release page and publish it.


To install the latest version of your blockchain node’s binary, execute the following command on your machine:

curl! | sudo bash

sei-protocol/sei-chain should match the username and repo_name of the Github repository to which the source code was pushed. Learn more about the install process.

Learn more


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