Welcome to Atala PRISM TypeScript SDK

Atala PRISM TypeScript SDK provides a library and documentation for developers to build TypeScript-based SSI applications with Atala PRISM. It provides a set of utilities for building SSI Edge Agents speaking DIDComm V2 protocols.

Basic considerations


Atala PRISM is a self-sovereign identity (SSI) platform and service suite for verifiable data and digital identity. Built on Cardano, it offers core infrastructure for issuing DIDs (Decentralized identifiers) and verifiable credentials, alongside tools and frameworks to help expand your ecosystem. The complete platform is separated into multiple repositories:

SDK Overview

  • Apollo: Provides a suite of necessary cryptographic operations.
  • Castor: Provides a suite of operations to create, manage and resolve decentralized identifiers.
  • Pollux: Provides a suite of operations for handling verifiable credentials.
  • Mercury: Provides a suite of operations for handling DIDComm V2 messages.
  • Pluto: Provides an interface for storage operations in a portable, storage-agnostic manner.
  • PrismAgent: PrismAgent, a component using all other building blocks, provides basic edge agent capabilities, including implementing DIDComm V2 protocols.

Getting started

This repository includes a browser and a Node.js demo application, and also a step-by-step documented process to run it.

Running a demo project

To be able to run the demos, we have to build prism-wallet-sdk-ts.

In order to install the package you must have created a github token with access to github repository packages and create a .npmrc file with the follwing content (assumming):


From the repository root run:

npm i
npm run build

For NodeJS

After building prism-wallet-sdk-ts, cd into {path}/prism-wallet-sdk-ts/demos/node:

npm i
node index.js

:::note The installation in the demos/node directory requires the build folder from the wallet-sdk to be available. :::

For browser

After building prism-wallet-sdk-ts, cd into the demo directory "demos/browser"

cd demos/browser
npm i
npm run start

Implementing storage for the SDK

This SDK exposes Pluto, a storage interface that should be implemented by the user, in the most appropriate way for a particular use case.

We don't provide a default implementation out of the box at the moment, but we do provide a couple of demo implementations that can be used to get started with demos and testing.

Provided demo implementations are intentionally oversimplified and SHOULD NOT be used in production.

Demo development mode

To run the browser demo app, just run npm run dev:browser, and the browser will automatically open and load the demo app.

To run the Node.js demo app, run npm run dev:node to build the demo app and then run it with node build/node-test/index.js.

  1. To see how the step-by-step examples can guide you, refer to each section inside the docs folder: Apollo, Castor, Pollux, Mercury, Pluto, Agent

  2. Jump straight into the SDK-REFERENCE