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The Wallet SDK provides TypeScript/JavaScript libraries for interacting with Canton Coin and the Canton Network Token Standard. Use it to build wallet applications, integrate Canton Coin payments into your dApp, or manage external party signing workflows. The SDK is published as the @canton-network/wallet-sdk npm package. Source code and the OpenRPC specification for the dApp API are available in the wallet-gateway repository.

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Installation

The Wallet SDK is published on the npm registry. Install it with your preferred package manager: 
npm install @canton-network/wallet-sdk

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dApp SDK

For dApp development only, the dApp SDK has a smaller bundle size and is optimized for browser usage. Both SDKs share the same underlying core packages, and individual core packages (transaction visualization, hash verification) can be used independently. 
npm install @canton-network/dapp-sdk

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Source Repository

The Wallet SDK source code is available on GitHub:

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What the SDK Provides

The Wallet SDK includes:
  • Transaction preparation — Build and sign Canton Coin transfers using the Token Standard
  • Token Standard client — Interact with the Canton Network Token Standard APIs for any CN token
  • Transaction history parsing — Parse ledger updates into structured deposit/withdrawal records
  • Configuration management — Connect to different environments (LocalNet, DevNet, TestNet, MainNet)
  • External signing support — Prepare transactions for external party signing workflows

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Language Support

LanguageSupport
TypeScript/JavaScriptFull SDK via npm
Java/JVMReference examples (not part of the SDK) at ex-java-json-api-bindings — demo code showing how to interact with the JSON Ledger API from Java
Other languagesUse the TypeScript SDK or Java samples as a blueprint

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Next Steps