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In the evolving landscape of web3 development, smart wallet infrastructure has become crucial for creating seamless user experiences with advanced features like account abstraction and gasless transactions. The Coinbase Smart Wallet SDK enables developers to build fully embedded, ERC-4337 compliant smart-wallet experiences. It supports passkey-based signing, multi-chain onboarding (EVM), session persistence, and sub-account management.
However, if you're building a wallet-centric experience with full customization, infrastructure control, and vendor independence, there are compelling alternatives worth considering. This article explores the top Coinbase Smart Wallet SDK alternatives developers are choosing in 2025.
1. Openfort
Openfort (that's us 👋) is a fully open-source, modular wallet infrastructure SDK designed for complete control over smart accounts, authentication flows, and user experience. Unlike Coinbase Smart Wallet SDK's hosted approach, Openfort provides developers with complete transparency and self-hosting capabilities.
Openfort is particularly popular among teams building web3 wallet gaming applications and projects requiring complete control over smart wallet infrastructure. With its comprehensive developer toolkit, Openfort enables teams to create fully customizable smart wallet experiences without vendor dependencies.
Key Features
Compared to Coinbase Smart Wallet SDK, Openfort offers a more transparent and flexible approach to smart wallet development. Openfort's main product directions include:
Account Abstraction Ready: Native support for ERC-4337 and EIP-7702 smart-account architecture with full control over wallet logic and user experience.
Passkey & Address Owners: Let users sign using passkeys or EOA keys in smart accounts with complete flexibility over authentication methods.
Open Source Stack: Complete MIT-licensed SDKs, UI components, and backend infrastructure that can be audited, modified, and self-hosted.
Ecosystem SDK: Provider injection, popup orchestration, session management with support for React, React Native, Unity, and cross-app wallet experiences.
Authentication Freedom: Integrate Auth0, Firebase, or any OIDC provider without platform restrictions, enabling complete wallet authentication control.
Cross-Platform Support: Works seamlessly with Unity WebGL, Telegram mini-apps, React Native, and web environments for web3 applications.
How does Openfort compare to Coinbase Smart Wallet SDK?
Both platforms focus on smart wallet infrastructure with ERC-4337 support, but they take fundamentally different approaches to openness, control, and infrastructure management.
| Feature | Openfort | Coinbase Smart Wallet SDK |
|---|---|---|
| Open Source Audit code, contribute to roadmap, and build integrations | ✅ Full stack | ✅ SDK only; backend closed |
| Self-hostable Infrastructure Host on your own infrastructure (if required) | ✅ Complete stack | ❌ Hosted by Coinbase |
| Account Abstraction (ERC-4337) Smart wallet and programmable account support | ✅ Native support | ✅ Via smart wallet contract |
| Passkey & EOA Signers Flexible authentication methods | ✅ Fully supported | ✅ Supported with passkeys |
| Sub-account Support Advanced account management | ✅ Custom sub-account/session logic | ✅ Via SDK |
| Custom Authentication Bring your own authentication provider | ✅ Any OIDC provider | ❌ Fixed Coinbase flow |
| Embedded & Smart Wallet UX Customizable wallet interface | ✅ Fully modular & customizable | ✅ SDK-provided embedded smart wallet |
| Multi-Chain Support Works across different blockchain networks | ✅ | ✅ EVM + non-EVM |
| Infrastructure Control Full control over backend and data | ✅ | ❌ |
| Session Management Persistent wallet sessions | ✅ Advanced | ✅ Basic |
Why developers choose Openfort over Coinbase Smart Wallet SDK
Complete infrastructure sovereignty: Build and control your own smart wallet infrastructure without vendor lock-in or dependency on Coinbase's hosted services.
Full transparency and customization: Open source stack allows deep customization of smart-account logic, authentication flows, and user experience that's impossible with closed backends.
Gaming and app-focused design: Built specifically for web3 wallet gaming, wallet consumer app, and experience-first applications requiring advanced session management.
Vendor independence: Zero dependency on Coinbase's services, pricing, or business decisions, ensuring long-term control over your wallet infrastructure.
2. MetaMask SDK
MetaMask SDK provides open-source wallet connectivity across browser, mobile, and Unity environments with established reliability for account connections.
How does MetaMask SDK compare to Coinbase Smart Wallet SDK?
MetaMask SDK and Coinbase Smart Wallet SDK serve different purposes in wallet connectivity. MetaMask SDK focuses on connecting to existing MetaMask wallets, while Coinbase Smart Wallet SDK enables embedded smart wallet creation.
| Feature | MetaMask SDK | Coinbase Smart Wallet SDK |
|---|---|---|
| Open Source | ✅ SDKs and core libraries | ✅ SDK only |
| Smart Wallet Support | ❌ No ERC-4337 support | ✅ |
| Embedded Wallet Creation | ❌ | ✅ |
| Existing Wallet Connection | ✅ MetaMask only | ❌ |
| Passkey Support | ❌ | ✅ |
| Multi-Chain Support | ✅ | ✅ |
| Self-hostable | ❌ | ❌ |
| Session Management | ✅ Basic | ✅ Advanced |
Why do companies choose MetaMask SDK?
Widely adopted and reliable: Battle-tested with millions of users and established infrastructure for MetaMask wallet connections.
Multi-platform support: Comprehensive support across browser, mobile, and Unity environments with consistent API.
Existing user base: Leverages MetaMask's large existing user base for instant wallet connectivity without onboarding friction.
3. Privy
Privy offers fast embedded wallet onboarding with social and email login capabilities, focusing on Web2-to-Web3 user experience.
How does Privy compare to Coinbase Smart Wallet SDK?
Privy and Coinbase Smart Wallet SDK both provide embedded wallet capabilities, but Privy focuses on simplified social authentication while Coinbase emphasizes smart wallet features and account abstraction.
| Feature | Privy | Coinbase Smart Wallet SDK |
|---|---|---|
| Open Source | ❌ | ✅ SDK only |
| Smart Wallet Support | ❌ | ✅ |
| Social Authentication | ✅ Excellent | ❌ |
| Embedded Wallets | ✅ | ✅ |
| Passkey Support | ❌ | ✅ |
| Account Abstraction | ❌ | ✅ |
| Self-hostable | ❌ | ❌ |
| UX Components | ✅ Great | ✅ Good |
Why do companies choose Privy?
Fast embedded wallet onboarding: Exceptional social and email login flows for teams wanting rapid Web2-to-Web3 user conversion.
Great UX components: Well-designed developer components that work out of the box for consumer applications.
Simplified authentication: Streamlined onboarding flows without the complexity of smart wallet infrastructure.
4. Dynamic
Dynamic provides clean developer dashboard tools and multi-wallet onboarding with seamless switching between external and embedded wallets.
How does Dynamic compare to Coinbase Smart Wallet SDK?
Dynamic offers broader wallet connectivity options than Coinbase Smart Wallet SDK, supporting multiple external wallet providers in addition to embedded wallet creation, though it lacks advanced smart wallet features.
| Feature | Dynamic | Coinbase Smart Wallet SDK |
|---|---|---|
| Open Source | ❌ | ✅ SDK only |
| Multi-Wallet Support | ✅ Extensive | ❌ |
| Smart Wallet Support | ❌ Limited | ✅ |
| Developer Dashboard | ✅ Advanced | ❌ |
| Embedded Wallets | ✅ | ✅ |
| Account Abstraction | ❌ | ✅ |
| Self-hostable | ❌ | ❌ |
| Session Management | ✅ | ✅ |
Why do companies choose Dynamic?
Clean developer dashboard: Advanced analytics and monitoring tools for wallet connections across multiple wallet providers.
Multi-wallet strategy: Seamless switching between external and embedded wallets, giving users choice in their wallet experience.
Comprehensive onboarding: Support for various wallet providers beyond just embedded wallets, reducing user friction.
5. Thirdweb
Thirdweb offers a rich smart-contract toolkit including tokens, NFTs, and drops with SDK support for contract deployment.
How does Thirdweb compare to Coinbase Smart Wallet SDK?
Thirdweb provides a broader web3 development platform including smart contracts and deployment tools, while Coinbase Smart Wallet SDK focuses specifically on smart wallet infrastructure and user experience.
| Feature | Thirdweb | Coinbase Smart Wallet SDK |
|---|---|---|
| Open Source | ✅ SDKs and contracts | ✅ SDK only |
| Smart Contract Toolkit | ✅ Comprehensive | ❌ |
| Smart Wallet Support | ✅ Limited | ✅ Native |
| Contract Deployment | ✅ | ❌ |
| Passkey Support | ❌ | ✅ |
| Account Abstraction | ✅ | ✅ |
| Self-hostable | ✅ Partial | ❌ |
| Wallet-First Design | ❌ | ✅ |
Why do companies choose Thirdweb?
Rich smart-contract toolkit: Comprehensive library of pre-built contracts for tokens, NFTs, drops, and marketplace functionality.
SDK support for contract deployment: Tools and infrastructure for rapid smart contract development and deployment.
Opinionated UX design: Pre-built components and abstractions that accelerate development for standard use cases.
6. Sequence
Sequence offers Unity- and game-ready embedded smart-wallet with account abstraction, featuring prebuilt multisig and transaction batching tools.
How does Sequence compare to Coinbase Smart Wallet SDK?
Sequence and Coinbase Smart Wallet SDK both provide smart wallet infrastructure with account abstraction, but Sequence focuses specifically on gaming applications while Coinbase targets broader web3 development.
| Feature | Sequence | Coinbase Smart Wallet SDK |
|---|---|---|
| Open Source | ✅ Contracts and SDKs | ✅ SDK only |
| Gaming Focus | ✅ Unity-ready | ❌ |
| Smart Wallet Support | ✅ Native | ✅ Native |
| Account Abstraction | ✅ | ✅ |
| Multisig Support | ✅ Prebuilt | ❌ |
| Transaction Batching | ✅ | ✅ |
| Self-hostable | ❌ | ❌ |
| Passkey Support | ❌ | ✅ |
Why do companies choose Sequence?
Gaming-optimized features: Unity SDK and game-ready embedded smart-wallet specifically designed for web3 wallet gaming applications.
Prebuilt multisig and batching: Advanced wallet features including multisig wallets and transaction batching capabilities out of the box.
Consumer app focus: UX and session flows optimized for gaming and consumer applications requiring smooth user experiences.
7. Turnkey
Turnkey provides TEE-backed key management with policy-driven security and embedded SDKs with secure login options.
How does Turnkey compare to Coinbase Smart Wallet SDK?
Turnkey focuses on enterprise-grade key management infrastructure, while Coinbase Smart Wallet SDK provides consumer-focused embedded smart wallet experiences. They serve different security and use case requirements.
| Feature | Turnkey | Coinbase Smart Wallet SDK |
|---|---|---|
| Open Source | ❌ SDKs only | ✅ SDK only |
| Enterprise Security | ✅ TEE-backed | ❌ |
| Policy Engine | ✅ Advanced | ❌ |
| Smart Wallet Support | ✅ | ✅ |
| Passkey Support | ✅ | ✅ |
| Consumer App Focus | ❌ | ✅ |
| Self-hostable | ❌ | ❌ |
| Secure Enclaves | ✅ | ❌ |
Why do companies choose Turnkey?
TEE-backed key management: Enterprise-grade security with policy-driven key management and secure enclave technology.
Embedded SDKs with security: Comprehensive security features for teams requiring institutional-grade key management.
Advanced policy controls: Granular policy controls and approval workflows for enterprise and institutional use cases.
Building In-House Wallet Product
In the realm of smart wallet infrastructure, organizations often face the decision of choosing between off-the-shelf solutions like Openfort or Coinbase Smart Wallet SDK and developing an in-house smart wallet platform tailored to their specific needs. While this option can offer high customization, it comes with its own set of challenges and considerations.
Pros of Building an In-House Wallet Solution
Complete Control: The most significant advantage of an in-house solution is the ability to tailor it precisely to your web3 application needs. This customization can result in a smart wallet system that aligns perfectly with your existing workflows, brand, and user experience requirements.
No Vendor Lock-in: With an in-house system, you have complete control over your wallet infrastructure without dependency on external providers or their pricing changes.
Custom Features: You can build specific features for your use case, whether it's web3 wallet gaming, web3 wallet DeFi, or web3 wallet AI agents.
Cons of Building an In-House Wallet Solution
Resource-Intensive Development: Developing a smart wallet solution in-house requires significant time investment in design, development, and testing. This process can divert valuable engineering resources away from your core product development.
Security Expertise Requirement: Building a secure smart wallet system requires deep cryptographic and blockchain security expertise. This includes not just the initial build but also ongoing threat assessment and response capabilities.
Ongoing Maintenance and Support: Post-deployment, the system will require continuous maintenance to ensure security, performance, and compatibility with evolving blockchain standards. This includes regular updates, patches, and security audits.
Compliance and Audit Challenges: Custom-built wallet systems can face heightened scrutiny from auditors and regulators. Ensuring compliance with evolving regulations can be more challenging compared to using established commercial solutions.
Scalability Concerns: As your application grows, the in-house wallet solution might need significant re-engineering to scale effectively, which can be a resource-intensive process.
Time to Market: Building a production-ready smart wallet infrastructure can take months or years, potentially delaying your core product launch.
FAQ
1. Is Coinbase Smart Wallet SDK fully open source? Yes, the SDK is MIT-licensed and available on GitHub, but it relies on hosted backend services from Coinbase that cannot be self-hosted or modified.
2. Does Coinbase Smart Wallet support ERC-4337 and passkeys like Openfort? Yes—Coinbase Smart Wallet SDK supports both passkey owners and EOA owners and is fully ERC-4337 compliant. Openfort also provides comprehensive ERC-4337 and EIP-7702 support with additional customization options.
3. Can I self-host the Coinbase Smart Wallet SDK infrastructure? No—the backend infrastructure is fully managed by Coinbase and cannot be self-hosted, unlike Openfort which provides complete self-hosting capabilities.
4. Should I use Coinbase Smart Wallet SDK or Openfort? Use Coinbase SDK for fast setup with passkeys and multi-chain support if you're comfortable with hosted infrastructure. Choose Openfort if you need embedded wallets, smart-account control, custom UX, full infrastructure ownership, or cross-app wallet experiences.
5. Can I migrate from Coinbase Smart Wallet SDK to Openfort? Yes, Openfort's flexible architecture and comprehensive documentation make migration straightforward. Our team can assist with transitioning to a self-hosted smart wallet infrastructure.
Is Openfort right for you?
Here's our (short) sales pitch.
We're biased (obviously), but we think Openfort is the perfect Coinbase Smart Wallet SDK alternative if:
You're building web3 applications that require complete control over smart wallet infrastructure and user experience. While Coinbase Smart Wallet SDK provides excellent smart wallet features, Openfort gives you complete transparency, self-hosting capabilities, and unlimited customization potential.
You value infrastructure sovereignty and want to avoid dependency on Coinbase's services, pricing, or business decisions. Our entire smart wallet stack is MIT-licensed with comprehensive documentation.
You're developing gaming applications, consumer experiences, or innovative Web3 solutions that need advanced smart wallet functionality beyond what hosted platforms provide.
Check out our developer documentation and API reference to learn more.
If you have any questions or want to schedule a product demo, you can get started with our team of experts.