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In the world of web3 development, creating seamless wallet experiences with robust smart contract infrastructure is crucial. Sequence is a powerful developer platform offering open-source SDKs and a robust library of pre-built, extensible smart contracts. Its standout features include a Unity-verified embedded wallet, multisig smart wallets, AWS Nitro enclave security, and account abstraction support. However, teams building advanced wallet infrastructure may benefit from exploring other options. This article explores the top Sequence alternatives developers are choosing in 2025.
1. Openfort
Openfort (that's us 👋) is a fully open-source wallet infrastructure stack and ecosystem SDK, built to enable developers to craft embedded wallets and self-custodial experiences with full control over UX, authentication, and infrastructure.
Openfort is particularly popular among teams building web3 wallet gaming applications and projects requiring complete control over their wallet stack. With its comprehensive wallet toolkit for developers, Openfort enables teams to create fully customizable wallet experiences that integrate seamlessly with existing infrastructure.
Key Features
Compared to Sequence, Openfort provides a more flexible and open approach to wallet development. Openfort's main product directions include:
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Smart Account Infrastructure: Full support for ERC-4337 and EIP-7702 smart accounts with built-in session management and authentication workflows.
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Embedded Wallet SDK: Create seamless in-app wallet experiences across multiple platforms including React, React Native, Unity WebGL/Native, and Telegram mini-apps.
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Custom Authentication: Auth-agnostic platform supporting Auth0, Firebase, or any custom OIDC providers without vendor lock-in.
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Global Wallet: Build ecosystem wallet experiences that work across multiple applications and platforms.
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Self-Hosting: Complete MIT-licensed stack that can be deployed on your own infrastructure for maximum control and security.
How does Openfort compare to Sequence?
Openfort aligns particularly well with Sequence developers because both platforms focus on comprehensive wallet infrastructure. However, Openfort provides greater flexibility and control over the entire stack.
| Feature | Openfort | Sequence |
|---|---|---|
| Open Source Audit code, contribute to roadmap, and build integrations | ✅ Entire stack | ✅ Contracts and SDKs |
| Self-Hostable Backend/UI Host on your own infrastructure (if required) | ✅ | ❌ |
| Smart Contract Library Pre-built contracts for common use cases | ❌ | ✅ |
| Embedded SDKs Unity, Web, Mobile support | ✅ | ✅ |
| Session & Popup Management Advanced session handling and UX flows | ✅ | ❌ (Basic intent flow) |
| Account Abstraction Support Smart account implementation | ✅ ERC-4337 + EIP-7702 | ✅ In-house |
| Auth Customization Bring your own authentication provider | ✅ Any OIDC provider | ✅ OIDC provider-based |
| Infrastructure Control Full control over backend and data | ✅ | ❌ |
Why developers choose Openfort over Sequence
Complete infrastructure control: Unlike Sequence's hosted-only approach, you can self-host the entire Openfort stack, giving you full control over your wallet infrastructure.
Extraordinary UX flexibility: Build exactly the wallet experience you envision without being constrained by platform limitations or UI restrictions.
True open-source transparency: The entire stack is MIT-licensed, allowing you to audit, modify, and contribute to the platform development.
Platform-agnostic integration: Works seamlessly across web3 wallet gaming, web3 wallet DeFi, web3 wallet AI agents, and wallet consumer app development.
2. Privy
Privy is a wallet and authentication platform focused on rapid deployment with email and social onboarding flows.
How does Privy compare to Sequence?
Privy offers a simpler approach compared to Sequence, focusing primarily on onboarding and authentication rather than comprehensive wallet infrastructure. While easier to implement initially, it lacks many of the advanced features that Sequence developers rely on.
| Feature | Privy | Sequence |
|---|---|---|
| Open Source | ❌ | ✅ Contracts and SDKs |
| Smart Contract Library | ❌ | ✅ |
| Account Abstraction Support | ❌ | ✅ |
| Session Management | ❌ | ✅ |
| Unity SDK | ❌ | ✅ |
| Multi-Platform Support | ✅ | ✅ |
| Social Authentication | ✅ | ✅ |
Why do companies choose Privy?
Rapid deployment: Quick setup for teams needing basic wallet onboarding without complex infrastructure requirements.
Consumer app focus: Optimized for simple consumer applications with straightforward authentication needs.
Social integration: Strong support for Web2-style social login flows.
3. Dynamic
Dynamic is a wallet connection and authentication toolkit offering clean UI components with Web2 compatibility.
How does Dynamic compare to Sequence?
Dynamic provides a more limited feature set compared to Sequence, focusing on wallet connection rather than comprehensive embedded wallet infrastructure. It lacks the smart contract libraries and advanced account abstraction features that Sequence provides.
| Feature | Dynamic | Sequence |
|---|---|---|
| Open Source | ❌ | ✅ Contracts and SDKs |
| Self-hostable | ❌ | ❌ |
| Smart Contract Library | ❌ | ✅ |
| Account Abstraction Support | ✅ (Limited) | ✅ |
| Unity SDK | ❌ | ✅ |
| Dashboard Tools | ✅ | ✅ |
| Web2 Integration | ✅ | ✅ |
Why do companies choose Dynamic?
Clean UI/UX: Polished interface components that work well out of the box for wallet connection flows.
Web2 compatibility: Strong integration with traditional Web2 authentication and user experience patterns.
Monitoring tools: Built-in dashboard and analytics for tracking wallet connections and user activity.
4. Thirdweb
Thirdweb offers a comprehensive web3 development platform including smart contracts, authentication, and wallet infrastructure.
How does Thirdweb compare to Sequence?
Thirdweb provides a broader development platform than Sequence, including smart contract deployment tools and no-code options. However, it's less specialized in embedded wallet experiences and doesn't offer the same level of wallet customization.
| Feature | Thirdweb | Sequence |
|---|---|---|
| Open Source | ✅ (Partial) | ✅ Contracts and SDKs |
| Smart Contract Library | ✅ | ✅ |
| No-Code Options | ✅ | ✅ |
| Unity SDK | ✅ | ✅ |
| Account Abstraction | ✅ | ✅ |
| Contract Deployment Tools | ✅ | ❌ |
Why do companies choose Thirdweb?
All-in-one platform: Comprehensive suite including contract deployment, wallet infrastructure, and development tools.
Smart contract templates: Rich library of pre-built contracts for NFTs, tokens, and marketplace functionality.
No-code deployment: Fast setup options for teams without extensive smart contract development experience.
5. Turnkey
Turnkey offers secure key management infrastructure with policy engines and secure enclave technology.
How does Turnkey compare to Sequence?
Turnkey focuses on the infrastructure layer of key management rather than user-facing wallet experiences. While more secure for enterprise use cases, it requires more development work to achieve the embedded wallet UX that Sequence provides out of the box.
| Feature | Turnkey | Sequence |
|---|---|---|
| Open Source | ❌ | ✅ Contracts and SDKs |
| Self-hostable | ❌ | ❌ |
| Policy Engine | ✅ | ❌ |
| Secure Enclaves | ✅ | ✅ |
| Smart Contract Library | ❌ | ✅ |
| Ready-to-Use UI | ❌ | ✅ |
| Enterprise Security | ✅ | ✅ |
Why do companies choose Turnkey?
Enterprise security: Advanced cryptographic primitives and secure enclave technology for high-security applications.
Policy flexibility: Sophisticated governance and approval workflows for institutional use cases.
Infrastructure focus: Building blocks for custom wallet architectures with maximum security control.
6. Fireblocks
Fireblocks is an institutional-grade custody platform with enterprise wallet and treasury management capabilities.
How does Fireblocks compare to Sequence?
Fireblocks targets enterprise and institutional use cases, making it significantly different from Sequence's developer and gaming focus. While more feature-rich for enterprises, it's overkill and too expensive for most consumer applications.
| Feature | Fireblocks | Sequence |
|---|---|---|
| Open Source | ❌ | ✅ Contracts and SDKs |
| Consumer App Focus | ❌ | ✅ |
| Institutional Features | ✅ | ❌ |
| Gaming SDKs | ❌ | ✅ |
| Policy Engine | ✅ | ❌ |
| Cost | High | Moderate |
| Compliance Tools | ✅ | ❌ |
Why do companies choose Fireblocks?
Institutional security: Military-grade security and compliance features designed for financial institutions.
Advanced governance: Sophisticated policy engines and multi-signature approval workflows.
Regulatory compliance: Built-in tools for meeting financial regulations and audit requirements.
7. Coinbase Wallet SDK
Coinbase Wallet SDK allows developers to integrate existing Coinbase Wallets into their applications.
How does Coinbase Wallet SDK compare to Sequence?
Coinbase Wallet SDK is much more limited than Sequence as it only connects to existing Coinbase Wallets rather than providing embedded wallet infrastructure or smart contract libraries.
| Feature | Coinbase Wallet SDK | Sequence |
|---|---|---|
| Open Source | ❌ | ✅ Contracts and SDKs |
| Embedded Wallet Creation | ❌ | ✅ |
| Smart Contract Library | ❌ | ✅ |
| Custom Wallet UI | ❌ | ✅ |
| Brand Recognition | ✅ | ❌ |
| Multi-Wallet Support | ❌ | ✅ |
| Unity SDK | ❌ | ✅ |
Why do companies choose Coinbase Wallet SDK?
Brand trust: Leverages Coinbase's reputation and existing user base for instant credibility.
Simple integration: Straightforward connection to existing Coinbase Wallets without complex setup.
Mobile app linking: Seamless flow from Coinbase mobile app to web applications.
Building In-House Wallet Product
In the realm of wallet infrastructure, organizations often face the decision of choosing between off-the-shelf solutions like Openfort or Sequence and developing an in-house 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 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 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 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 wallet infrastructure can take months or years, potentially delaying your core product launch.
FAQ
1. Is Openfort fully open-source like Sequence? Yes—Openfort's SDKs, UI, and backend orchestration are all MIT-licensed and self-hostable. Sequence's core contracts and SDKs are open, but its backend infrastructure is not.
2. Does Openfort support embedded Unity wallets like Sequence? Absolutely—Openfort supports React Web, React Native, Unity WebGL/Native, and even Telegram mini-apps with the same level of integration as Sequence.
3. Can I use my own auth system instead of Sequence's infrastructure? Yes—Openfort is completely auth-agnostic. You can integrate any OIDC providers like Auth0, Firebase, or custom authentication systems without platform restrictions.
4. What's the main difference between Sequence and Openfort? Choose Sequence for rich smart contract libraries and fast iteration with their pre-built ecosystem. Choose Openfort if you want complete control over wallet infrastructure, UX flows, hosting, and the ability to self-host your entire stack.
5. Can I migrate from Sequence to Openfort? Yes, Openfort's flexible architecture makes migration straightforward. Our documentation includes migration guides, and our team can help with the transition process.
Is Openfort right for you?
Here's our (short) sales pitch.
We're biased (obviously), but we think Openfort is the perfect Sequence alternative if:
You're looking for a developer-focused solution that gives you complete control over your wallet infrastructure and user experience. With Openfort, you get everything Sequence offers plus full self-hosting capabilities, complete stack transparency, and unlimited customization potential.
You value open-source transparency and want to avoid vendor lock-in. Our entire stack is MIT-licensed with comprehensive documentation and community support.
You want enterprise-grade features without enterprise complexity. Openfort scales from indie games to Fortune 500 companies with transparent pricing and self-serve deployment.
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.