add multisig-modules

SUMMARY.md

@@ -73,15 +73,16 @@
     * [Usage](sdk/bridge-modules/bridge-usdt0-evm/usage.md)
     * [Configuration](sdk/bridge-modules/bridge-usdt0-evm/configuration.md)
     * [API Reference](sdk/bridge-modules/bridge-usdt0-evm/api-reference.md)
-  <!-- * [bridge-usdt0-ton](sdk/bridge-modules/bridge-usdt0-ton/README.md)
-    * [Usage](sdk/bridge-modules/bridge-usdt0-ton/usage.md)
-    * [Configuration](sdk/bridge-modules/bridge-usdt0-ton/configuration.md)
-    * [API Reference](sdk/bridge-modules/bridge-usdt0-ton/api-reference.md) -->
 * [Lending Modules](sdk/lending-modules/README.md)
   * [lending-aave-evm](sdk/lending-modules/lending-aave-evm/README.md)
     * [Usage](sdk/lending-modules/lending-aave-evm/usage.md)
     * [Configuration](sdk/lending-modules/lending-aave-evm/configuration.md)
     * [API Reference](sdk/lending-modules/lending-aave-evm/api-reference.md)
+* [Multisig Modules](sdk/multisig-modules/README.md)
+  * [multisig-safe](sdk/multisig-modules/protocol-multisig-safe/README.md)
+    * [Usage](sdk/multisig-modules/protocol-multisig-safe/usage.md)
+    * [Configuration](sdk/multisig-modules/protocol-multisig-safe/configuration.md)
+    * [API Reference](sdk/multisig-modules/protocol-multisig-safe/api-reference.md)
 * [Fiat Modules](sdk/fiat-modules/README.md)
   * [fiat-moonpay](sdk/fiat-modules/fiat-moonpay/README.md)
     * [Usage](sdk/fiat-modules/fiat-moonpay/usage.md)

sdk/get-started.md

@@ -28,6 +28,7 @@ It is built on some core principles: **self-custodial and stateless** (private k
 * **Multi-Chain Support**: Bitcoin, Ethereum, TON, TRON, Solana, Spark, and more
 * **Account Abstraction**: Gasless transactions on supported chains
 * **DeFi Integration**: Plug-in support for swaps, bridges, and lending protocols
+* **Multisig Wallets**: Safe Protocol integration for multi-party wallet control
 * **Extensible Design**: Add custom modules for new blockchains or protocols
 
 ***
@@ -46,7 +47,7 @@ New functionality is added through modules rather than modifying core code. Also
 
 #### Module Types
 
-WDK modules are organized into five main categories, each serving a specific purpose in the blockchain application stack:
+WDK modules are organized into six main categories, each serving a specific purpose in the blockchain application stack:
 
 <table data-view="cards">
 	<thead>
@@ -75,6 +76,15 @@ WDK modules are organized into five main categories, each serving a specific pur
 				<a href="./wallet-modules/README.md">Wallet Modules</a>
 			</td>
 		</tr>
+		<tr>
+			<td>
+				<strong>Multisig</strong>
+			</td>
+			<td>Multi-party wallet management</td>
+			<td>
+				<a href="./multisig-modules/README.md">Multisig Modules</a>
+			</td>
+		</tr>
 		<tr>
 			<td>
 				<strong>Swap</strong>
@@ -355,4 +365,4 @@ Ready to start building? Choose your development environment:
 
 ### Need Help?
 
-{% include "../.gitbook/includes/support-cards.md" %}
+{% include "../.gitbook/includes/support-cards.md" %}

sdk/multisig-modules/README.md

@@ -0,0 +1,69 @@
+# Multisig Modules
+
+Overview of WDK Multisig Modules
+
+The Wallet Development Kit (WDK) provides multisig modules that enable secure multi-party wallet management. These modules allow multiple signers to control shared wallets with customizable approval thresholds.
+
+## Why Multisig?
+
+Multisig (multi-signature) wallets require multiple parties to approve transactions before execution. This provides:
+
+* **Enhanced Security**: No single point of failure - multiple keys required
+* **Team Control**: Perfect for companies, DAOs, and shared treasuries
+* **Approval Workflows**: Configurable thresholds
+* **Accountability**: Full audit trail of who approved what
+
+## Available Modules
+
+| Module | Blockchain | Status | Documentation |
+| --- | --- | --- | --- |
+| @tetherto/wdk-protocol-multisig-safe | EVM | ✅ Ready | [Documentation](protocol-multisig-safe/README.md) |
+
+## Module Features
+
+### Standard Features
+
+All multisig modules share these core features:
+
+* **Multi-Owner Management**: Add, remove, and swap owners
+* **Threshold Configuration**: Set required approval count
+* **Propose/Approve/Execute**: Standard multisig workflow
+* **Transaction Tracking**: View pending and historical transactions
+* **Message Signing**: Sign and verify messages with multisig approval (EIP-1271)
+
+### Account Abstraction Features
+
+Modules with ERC-4337 support include:
+
+* **Gasless Transactions**: Pay fees in ERC-20 tokens (e.g., USDT)
+* **Sponsored Mode**: Completely gas-free transactions
+* **Bundled Operations**: Multiple approvals in single transaction
+
+## Getting Started
+
+To get started with WDK multisig modules, follow these steps:
+
+1. Get up and running quickly with our [Quick Start Guide](/start-building/nodejs-bare-quickstart)
+2. Choose the module that best fits your needs from the table above
+3. Check specific documentation for the module you wish to use
+
+## Next Steps
+
+**Protocol Multisig Safe**
+
+Safe Protocol multisig with ERC-4337 account abstraction
+
+**Node.js Quickstart**
+
+Get started with WDK in a Node.js environment
+
+**Concepts**
+
+Learn about key concepts like Account Abstraction
+
+---
+
+### Need Help?
+
+
+{% include "../../.gitbook/includes/support-cards.md" %}

sdk/multisig-modules/protocol-multisig-safe/README.md

@@ -0,0 +1,53 @@
+# protocol-multisig-safe
+
+Overview of the @tetherto/wdk-protocol-multisig-safe module
+
+A simple and secure package to manage Safe Protocol multisig wallets with ERC-4337 account abstraction for EVM-compatible blockchains. This package provides a clean API for creating, managing, and interacting with multisig wallets using BIP-39 seed phrases and the Safe smart contract infrastructure.
+
+## Features
+
+* **Safe Protocol Integration**: Full support for Safe (formerly Gnosis Safe) multisig wallets
+* **ERC-4337 Account Abstraction**: Gasless transactions via paymasters and bundlers
+* **Paymaster Modes**: Support for both ERC-20 paymaster and sponsored (gasless) modes
+* **Per-Transaction Override**: Switch between ERC-20 and sponsored mode per transaction
+* **Multi-Owner Management**: Add, remove, swap owners and change threshold
+* **Propose/Approve/Execute**: Standard multisig transaction workflow
+* **Message Signing**: EIP-191 compliant multisig message signing
+* **Deterministic Addresses**: Predictable Safe addresses from owner configuration
+* **Auto-Execute**: Automatically execute transactions when threshold is met
+* **TypeScript Support**: Full TypeScript definitions included
+* **Memory Safety**: Secure private key management with memory-safe implementation
+
+## Supported Networks
+
+This package works with any EVM-compatible network that supports:
+
+* **Ethereum**: Mainnet, Sepolia
+* **Polygon**: Mainnet, Mumbai
+* **Arbitrum**: One, Nova
+* **Optimism**: Mainnet, Goerli
+* **And more**: Any chain with Safe Protocol and ERC-4337 infrastructure
+
+## Next Steps
+
+**Node.js Quickstart**
+
+Get started with WDK in a Node.js environment
+
+**WDK Multisig Safe Configuration**
+
+Get started with WDK's Multisig Safe configuration
+
+**WDK Multisig Safe API**
+
+Get started with WDK's Multisig Safe API
+
+**WDK Multisig Safe Usage**
+
+Get started with WDK's Multisig Safe usage
+
+---
+
+### Need Help?
+
+{% include "../../../.gitbook/includes/support-cards.md" %}