Sei Network: bringing high throughput decentralized blockspace to millions of developers

Today, we're excited to announce that Alchemy infrastructure is now available on Sei Network, bringing together two builder-obsessed teams to deliver parallel transaction processing so you can build your biggest ideas.

Why this partnership matters

For developers who've been held back by blockchain's technical limitations, this partnership delivers a powerful combination: Sei's high-performance parallel execution model paired with Alchemy's reliable infrastructure.

Sei stands out with its ability to process multiple transactions simultaneously, enabling unprecedented throughput without sacrificing decentralization. With the upcoming Giga upgrade, Sei will deliver an impressive 5 gigagas per second—50x more computational power than existing EVM chains.

Why leading chains choose Alchemy

Sei Network's collaboration with Alchemy builds on our proven track record of empowering the most innovative blockchain ecosystems. Here's why performance-focused chains like Sei consistently select Alchemy as their infrastructure partner:

• Unmatched Reliability: With enterprise-grade infrastructure trusted by thousands of developers, Alchemy delivers the stability needed for mission-critical applications.
• Developer Experience Obsession: Our comprehensive tooling eliminates infrastructure headaches, allowing builders to focus on what matters—creating groundbreaking applications.
• Ecosystem Acceleration: Chains partnering with Alchemy benefit from our extensive developer reach and proven ability to catalyze ecosystem growth.
• Performance at Scale: Our infrastructure is built to handle explosive growth, supporting projects from prototype to global adoption without missing a beat.

What builders get

Starting today, you can build on Sei with Alchemy's Node API. Our integration brings you:

• Reliable Node Infrastructure: Build with enterprise-grade stability
• Reduced Development Time: Focus on creating rather than maintaining infrastructure
• Seamless EVM Compatibility: Deploy existing Ethereum smart contracts without modifications

This is just the beginning. We're working to bring our full suite of developer tools to Sei, including Token API, Transfers API, and Webhooks in the coming months.

Why build on Sei?

Sei Network offers unique advantages for developers:

1. Unmatched Performance & Scalability: With the upcoming Giga upgrade delivering 5 gigagas per second, Sei provides 50x more computational power than existing EVM chains.

2. Seamless EVM Compatibility: Deploy existing Ethereum smart contracts without modifications, leveraging familiar tools while unlocking higher performance and lower fees.

3. Developer-First Infrastructure: Comprehensive documentation, technical resources, and milestone-based funding opportunities support builders at every stage.

The combination of Sei's performance capabilities with Alchemy's reliable infrastructure creates an environment where developers can finally build without compromise.

What this means for builders

This partnership removes technical limitations that have historically held back blockchain applications. Developers can now build applications that weren't previously possible onchain—high-frequency trading platforms, AI-driven protocols, and real-time games.

Whether you're building in DeFi, gaming, AI, or other verticals, the Alchemy + Sei combination provides the foundation you need to bring your most ambitious ideas to life.

The giga upgrade: scaling the future

The upcoming Giga upgrade represents a major leap forward for Sei, designed to unlock its full performance potential. With 5 gigagas per second and an optimized EVM client, Giga will scale Sei's throughput by 50x, enabling more complex, data-intensive applications to thrive.

Key highlights include:

• Rebuilt EVM Client with ahead-of-time compilation for ultra-fast transactions
• Revolutionary consensus with asynchronous execution to maximize throughput
• Next-gen storage eliminating traditional state update bottlenecks

Get started today

Ready to build on Sei with Alchemy? Here's how to get started:

1. Sign up for an Alchemy account
2. Create a new app and select "Sei" as your network
3. Get your API key and start building

Join our Discord to connect with our team and other builders in the community.

Launching your own chain?

If you're developing a new chain or L1/L2 solution, partnering with Alchemy can significantly accelerate your ecosystem growth. Our proven infrastructure, developer reach, and comprehensive tooling have helped the most innovative chains scale from launch to mass adoption.

Contact our team today to discuss how Alchemy can power your chain's success and connect you with thousands of builders worldwide.

What's next

We're committed to supporting Sei's ecosystem growth with our full suite of developer tools. Stay tuned for announcements about additional APIs and features coming to Sei through Alchemy.

Together, we're creating an environment where developers can build without technical limitations, bringing the next generation of onchain apps to life.

Frequently asked questions

What is Sei Network and why should I build on it?

Sei Network is a high-performance Layer 1 blockchain that processes transactions in parallel, offering seamless EVM compatibility so you can deploy existing Ethereum smart contracts without modifications. With the upcoming Giga upgrade delivering 5 gigagas per second, 50x more computational power than existing EVM chains, Sei provides unmatched performance, scalability, and lower fees.

How do I get started building on Sei?

Sign up for an Alchemy account, create a new app and select "Sei" as your network, then get your API key and start building using the Node API.

What infrastructure do we provide for Sei?

We offer reliable enterprise-grade node infrastructure through the Node API for blockchain interactions. Additional developer tools including Token API, Transfers API, and Webhooks are coming in the following months.

Can I use my existing Ethereum tools and contracts on Sei?

Yes, Sei is fully EVM-compatible, allowing you to deploy existing Ethereum smart contracts without modifications and use familiar tools seamlessly.

What is the Giga upgrade?

The Giga upgrade is a major performance enhancement for Sei that will deliver 5 gigagas per second, 50x more computational power than existing EVM chains. It features a rebuilt EVM client with ahead-of-time compilation, asynchronous execution for maximum throughput, and next-gen storage that eliminates traditional state update bottlenecks.

What types of applications can I build on Sei?

The combination of Sei's performance capabilities and our infrastructure enables applications that weren't previously possible onchain, including high-frequency trading platforms, AI-driven protocols, real-time games, and complex applications across DeFi, gaming, and AI verticals.

Why do leading chains choose us as their infrastructure partner?

Chains like Sei choose us for enterprise-grade reliability trusted by thousands of developers, comprehensive tooling that eliminates infrastructure headaches, extensive developer reach for ecosystem acceleration, and infrastructure built to handle explosive growth from prototype to global adoption.