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The sequence.js SDK is composed of several sub-packages combined into a single meta-package called 0xsequence. To add the SDK to your project, add a dependency on 0xsequence to your package.json:

npm install 0xsequence ethers


pnpm install 0xsequence ethers


yarn add 0xsequence ethers

If you know that your project only requires specific sub-packages, you can also depend on those directly with npm add @0xsequence/<sub-package name>.

Your package.json should look something like this (actual version may vary):

"name": "my-dapp",
"dependencies": {
"0xsequence": "^0.43.0",
"ethers": ^5.7.0"

CDN distribution as native JS

Optionally, 0xsequence can be installed as a JS script source (UMD distribution) via:

<script src=""></script>
<script src="[email protected]/dist/0xsequence.umd.min.js"></script>