Introduction

WalletConnect Sign is a remote signer protocol to communicate securely between web3 wallets and dapps. The protocol establishes a remote pairing between two apps and/or devices using a Relay server to relay payloads. These payloads are symmetrically encrypted through a shared key between the two peers. The pairing is initiated by one peer displaying a QR Code or deep link with a standard WalletConnect URI and is established when the counter-party approves this pairing request.

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Installation

Web

bash npm npm install @walletconnect/sign-client  bash Yarn yarn add         @walletconnect/sign-client  bash Bun bun add @walletconnect/sign-client          bash pnpm pnpm add @walletconnect/sign-client

For Node.js, the WalletConnect SignClient additionally requires lokijs to manage storage internally.

bash npm npm install --save @walletconnect/sign-client lokijs@1.x 
bash Yarn yarn add @walletconnect/sign-client lokijs@1.x  bash Bun         bun add --save @walletconnect/sign-client lokijs@1.x  bash pnpm pnpm add         @walletconnect/sign-client lokijs@1.x

iOS

SwiftPackageManager

You can add a WalletConnect SDK to your project with Swift Package Manager. In order to do that:

1. Open XCode
2. Go to File -> Add Packages
3. Paste the repo GitHub URL: https://github.com/reown-com/reown-swift
4. Tap Add Package
5. Select WalletConnect check mark

Cocoapods

1. Update Cocoapods spec repos. Type in terminal pod repo update
2. Initialize Podfile if needed with pod init
3. Add pod to your Podfile:

pod 'WalletConnectSwiftV2'

4. Install pods with pod install

If you encounter any problems during package installation, you can specify the exact path to the repository

pod 'WalletConnectSwiftV2', :git => 'https://github.com/reown-com/reown-swift.git', :tag => '1.0.5'

Android

Kotlin implementation of WalletConnect v2 Sign protocol for Android applications. This SDK is developed in Kotlin and usable in both Java and Kotlin files.

• Android Core
• Sign

Requirements

• Android min SDK 23
• Java 11

Installation

root/build.gradle.kts:

allprojects {
 repositories {
    mavenCentral()
    maven { url "https://jitpack.io" }
 }
}

app/build.gradle.kts

implementation("com.walletconnect:android-core:release_version")
implementation("com.walletconnect:sign:release_version")

Flutter

Install the WalletConnect client package.

flutter pub add walletconnect_flutter_v2

Platform Specific Setup

Depending on your platform, you will have to add different permissions to get the package to work.

MacOS

Add the following to your DebugProfile.entitlements and Release.entitlements files so that it can connect to the WebSocket server.

<key>com.apple.security.network.client</key>
<true/>

.NET

Install via Packages

Install the WalletConnect Sign Client package via Nuget.

dotnet add package WalletConnect.Sign

Unity

WalletConnectUnity.Core is a Unity package that provides a client implementation of the WalletConnect v2 protocol. It is built on top of the WalletConnectSharp.Sign library, which provides the core functionality for the WalletConnect protocol.

Prerequisites

• Unity 2021.3 or above
• IL2CPP code stripping level: Minimal (or lower)

Package Installation

OpenUPM CLI

To install packages via OpenUPM, you need to have Node.js and openupm-cli installed. Once you have them installed, you can run the following commands:

openupm add com.walletconnect.core

Package Manager with OpenUPM

1. Open Advanced Project Settings from the gear ⚙ menu located at the top right of the Package Manager’s toolbar
2. Add a new scoped registry with the following details:
   • Name: OpenUPM
   • URL: https://package.openupm.com
   • Scope(s): com.walletconnect
3. Press plus ➕ and then Save buttons
4. In the Package Manager windows open the add ➕ menu from the toolbar
5. Select Add package by name...
6. Enter the package name:
   • com.walletconnect.core
7. Press Add button

Package Manager with Git URL

1. Open the add ➕ menu in the Package Manager’s toolbar
2. Select Add package from git URL...
3. Enter the package URL:

WalletConnectUnity Core

https://github.com/WalletConnect/WalletConnectUnity.git?path=Packages/com.walletconnect.core

4. Press Add button

It’s possible to lock the version of the package by adding #{version} at the end of the git URL, where #{version} is the git tag of the version you want to use. For example, to install version 1.0.1 of WalletConnectUnity Modal, use the following URL:

https://github.com/WalletConnect/WalletConnectUnity.git?path=Packages/com.walletconnect.core#core/1.0.1

WebGL

Due to WebGL’s single-threaded nature, certain asynchronous operations like Task.Run, Task.ContinueWith, Task.Delay, and ConfigureAwait(false) are not natively supported.

To enable these operations in WebGL builds, an additional third-party package, WebGLThreadingPatcher, is required. This package modifies the Unity WebGL build to delegate work to the SynchronizationContext, allowing these operations to be executed on the same thread without blocking the main application. Please note that all tasks are still executed on a single thread, and any blocking calls will freeze the entire application.

The WebGLThreadingPatcher package can be added via git URL:

https://github.com/VolodymyrBS/WebGLThreadingPatcher.git