Openfort is excited to announce its support to Mantle Network to bring account abstraction to the network

Openfort account abstraction support for Mantle Network Layer 2

Openfort supports Mantle Network


We’ve expanded our embedded wallet foundation into a complete ecosystem solution. This allows studios and brands to build networks of interconnected apps and chains that share a single identity and wallet system.

## What is a Global Wallet?

A Global Wallet (or Cross-App Wallet) is a single, persistent identity that a user can carry across multiple different applications and blockchains. Instead of creating a new wallet for every game or DeFi app, users can log in once and access all their assets across an entire ecosystem. For developers, this means better user retention and a more integrated experience for players who move between different products in their portfolio.


## Introducing Cross‑app Wallets Powered by the Ecosystem SDK

![crossap\_ecosystem.png](/images/blog/openfort_ecosystem_43e2988f53.png)

Today, we’re thrilled to introduce **[Global Wallets](https://www.openfort.io/crossapp-wallet)**, a revolutionary wallet offering **powered by the Openfort Ecosystem SDK**. Cross‑app Wallets extend our embedded wallet foundation into a versatile, community‑centric solution designed for **anyone building a network of apps, ecosystems, or chains**—not just gaming.

### Why Global Wallets?

1. **Cross‑App Connectivity**
   With Cross‑app Wallets, users enjoy a **single wallet** across multiple applications with the Mobile Wallet Protocol—whether those are games, DeFi platforms, NFT marketplaces, social dApps, or entirely new Web3 experiences. Say goodbye to fragmented identities and multiple sign‑ups.

2. **Ecosystem SDK Integration**
   Under the hood, Cross‑app Wallets leverage the robust [Openfort Ecosystem SDK](https://www.openfort.io/docs/products/cross-app-wallet/setup/react/quickstart), giving developers a unified toolkit to manage wallets, identities, and assets across chains and apps. The SDK handles everything from onboarding flows to policy enforcement and recovery, so you can ship faster.

3. **Broad Community Support**
   Designed for **studios, brands, DAOs, and ventures** powering multi‑app communities, Cross‑app Wallets work seamlessly with any frontend or framework. Whether you’re launching a token‑powered loyalty program, a cross‑chain DeFi suite, or a suite of social experiences, the ecosystem SDK has you covered.

4. **Familiar Tooling**
   We support popular libraries like **Wagmi**, **RainbowKit**, and other wallet adapters, so integrating Cross‑app Wallets into your existing stack is effortless. Leverage your current workflows while upgrading to a cross‑app, multi‑chain wallet architecture.

## Key Features

* **Unified Wallet Experience**: One wallet to rule all your apps, ecosystems, and chains.
* **Flexible Onboarding**: Social logins, passkeys, or web3 connectors—choose the entry method that suits your audience.
* **Open-source Security**: Built‑in [OpenSigner](https://www.opensigner.dev) offers encryption, multi‑factor recovery, and policy controls without sacrificing UX.
* **Comprehensive Dashboard**: Manage wallets, assets, policies, and user data through a single, customizable admin console.
* **Policy & Access Controls**: Define and enforce rules across your entire app ecosystem—limit transfers, segment access, or implement custom logic.
* **Multi‑chain Support**: Connect to any EVM‑compatible chain out of the box, with extensibility for new and emerging networks.

![crossap\_dashboard.png](/images/blog/openfort_dashboard_5517978e65.png)

## Benefits for Community Builders and Users

### For Community Builders:

* **[Unified Infrastructure](https://www.openfort.io/docs/products/cross-app-wallet/usage/web-app-wagmi)**: Develop and manage cross‑app experiences with a single SDK and dashboard.
* **Speed to Market**: Accelerate launches with pre‑built onboarding, recovery, and policy modules.
* **Scalable Growth**: Seamlessly add new apps, chains, and features without reinventing your wallet layer.
* **Data & Analytics**: Gain insights into user behaviors, asset flows, and engagement across your entire ecosystem.

### For End Users:

* **One‑Click Access**: Sign up once and explore every app in your favorite communities.
* **Consistent Identity**: Maintain a persistent wallet identity and profile across apps.
* **Easy Asset Management**: View and move assets fluidly between games, marketplaces, DeFi apps, and more.
* **Peace of Mind**: Benefit from enterprise‑grade security and recovery without memorizing seed phrases.

## Looking Ahead: Building the Future of Web3 Communities

Cross‑app Wallets powered by the Ecosystem SDK represent our vision for truly interoperable Web3: where any brand, project, or community can unite diverse applications and chains under one wallet roof. We believe in empowering builders of all kinds—gaming studios, social platforms, DeFi innovators, and beyond—to let their ecosystems flourish.

Ready to get started? Explore the Cross‑app Wallets documentation and see how easy it is to integrate powerful, community‑driven wallets into your next project.

Together, let's let a thousand ecosystems flourish.

## Related reading

- [How cross-game interoperability and single sign-on are redefining gaming ecosystems](/blog/openfort-interoperability-the-rise-of-cross-game-ecosystems)
- [Understanding custody models and how wallet ownership impacts players across apps](/blog/wallet-service-guide)
- [The essential developer toolkit for building Web3 games, from blockchain selection to player acquisition](/blog/tools-for-web3-game-development)


Introducing Ecosystem SDK: The Next Evolution in Global interactions. A timely solution to the fragmentation and complexity challenges that have been hindering the chains' growth.

Introducing Global Wallets, powered by the Ecosystem SDK


Ethereum's account management is evolving with the introduction of EIP-7702. This upgrade refines earlier proposals like EIP-3074 to offer a more secure and flexible way for traditional accounts (EOAs) to use smart contract features.

## What is EIP-7702?

EIP-7702 is a proposal that allows an Externally Owned Account (EOA) to temporarily adopt the capabilities of a smart contract during a transaction. Unlike previous attempts, it is designed to be fully compatible with ERC-4337 (Account Abstraction). This means a regular wallet can suddenly perform complex tasks like batching multiple transactions or having someone else pay for their gas (sponsorship), then revert to its normal state once the action is complete.


Sponsored transactions are achieved through the introduction of two new opcodes, `AUTH` and `AUTHCALL`, which allow EOAs to delegate their authority to smart contracts, enabling more flexible and efficient transaction types.

EIP-3074 initially faced increasing security challenges and technical limitations.

Key issues included potential authorization abuses and consequent security vulnerabilities, particularly when dealing with large-scale or high-value transactions.

![3074flow.svg](/images/blog/Group_620_3f3efd9dbb.svg)

EIP-7702 is forward-compatible with standards like ERC-4337, supporting advanced AA features without overcomplicating the underlying architecture.


### Core Mechanisms of EIP-7702

Here's what it does:
- Batch transactions: Allows EOAs to execute smart contract-like actions.
- Gas Sponsorship: Enables third parties to cover transaction costs. For a deeper understanding of how gas sponsorship can enhance user experience, explore our solutions for [gasless transactions](https://www.openfort.io/docs/products/embedded-wallet/javascript/smart-wallet/send).
- Custom Logic: Supports tailored transaction rules.

To allow EOAs to temporarily act as smart contracts, two main components are used:

**Contract Code**

The `contract_code` field in a transaction specifies the smart contract code that the EOA will execute, temporarily enhancing its capabilities.

This allows the EOA to perform operations that are typically exclusive to smart contracts, like executing multi-step transactions or interactions with other contracts.

Once a transaction completes, the EOA discards the temporary code, reverting to its original, simpler state to ensure security and maintain its standard functionality.

**Signature**

A standard Ethereum signature (using v, r, s) accompanies the transaction to verify the identity of the account holder and authorize the temporary transformation.

The signature secures the transaction against unauthorized actions and confirms the account holder's consent for the temporary enhancement.

## Innovations and potential of EIP-7702

EIP-7702 introduces significant innovations and advancements for AA:

**- Enhanced Flexibility and Security:** By allowing EOAs to act temporarily as smart contracts, EIP-7702 facilitates complex operations while maintaining the security and simplicity of traditional transactions.

**- Reduction in Operational Complexity:** This proposal simplifies transactions by reducing the need for multiple transaction steps and interactions, thereby decreasing gas costs and enhancing UX.

**- Forward Compatibility:** EIP-7702 prepares a better underlying architecture for future developments in account abstraction.

### Final Thoughts

EIP-7702 represents a forward-thinking approach to solving existing challenges in Ethereum's account management and transaction execution.

By addressing the limitations of EIP-3074 and introducing robust mechanisms for account abstraction, the implementation of EIP-7702 in upcoming network upgrades, such as the Prague/Electra upgrade, remains promising.


Explore EIP-7702, the innovative upgrade refining EIP-3074. Uncover how temporary smart contract roles enhance Ethereum security and simplify transactions.

EIP-3074 to EIP-7702 account abstraction upgrade diagram

EIP-3074 to EIP-7702: Advancing Ethereum Account Abstraction

- [What is Mantle Network?](#what-is-mantle-network)
- [Benefits of Integration](#benefits-of-integration)
- [Related reading](#related-reading)

Openfort has integrated with Mantle Network, a Layer 2 blockchain built to improve scalability and reduce transaction costs. This integration allows developers to build faster and more cost-effective on-chain experiences for their players.

[What is Mantle Network?](#what-is-mantle-network)

[Benefits of Integration](#benefits-of-integration)

: With Mantle Network, Openfort can offer optimized smart wallet solutions, ensuring seamless and efficient user experiences for gamers.

**Enhanced Scalability**: With Mantle Network, Openfort can offer optimized smart wallet solutions, ensuring seamless and efficient user experiences for gamers.

: By reducing transaction costs, developers can allocate more resources to game development, leading to richer and more engaging gameplay.

**Cost Efficiency**: By reducing transaction costs, developers can allocate more resources to game development, leading to richer and more engaging gameplay.

: Mantle Network maintains Ethereum's security standards while providing a decentralized environment for transactions.

**Security and Decentralization**: Mantle Network maintains Ethereum's security standards while providing a decentralized environment for transactions.

How embedded wallets simplify onboarding for players on chains like Mantle

[How embedded wallets simplify onboarding for players on chains like Mantle](/blog/embedded-wallet-explained)

Understanding gas sponsorship and how it reduces transaction costs for end users

[Understanding gas sponsorship and how it reduces transaction costs for end users](/blog/technical-dive-gas-sponsorship)

Openfort also supports Base, another leading Layer 2 for gaming and consumer apps

[Openfort also supports Base, another leading Layer 2 for gaming and consumer apps](/blog/openfort-adds-base)

Openfort supports Mantle Network

In this article

Let your business run on stablecoins

In this article

Let your business run on stablecoins

What is Mantle Network?

Benefits of Integration

Keep Reading

EIP-3074 to EIP-7702: Advancing Ethereum Account Abstraction

Introducing Global Wallets, powered by the Ecosystem SDK

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