How institutions actually adopt blockchain: new research with Mastercard
A joint report from Mastercard and the Sei Development Foundation on how financial institutions evaluate blockchain infrastructure and take it to production.
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The Eidos Upgrade: replacing Sei’s storage database while the chain is running
TL;DR: Every blockchain node has two jobs: compute what happens next on the chain, and store what has already happened. Storage is a critical bottleneck for all blockchains as they attempt to scale. If storage can't keep pace with the rate at which new transactions are executing,
Ares and Eidos, the first components of the Giga Upgrade, will go live in Sei 6.6
TL;DR: the proposal for Sei 6.6 is live, and it will be the release where Sei Giga starts touching mainnet. 6.6 will introduce the first pieces of two of the three major Giga upgrades: Eidos, a new storage layer that will begin moving the chain’s history
Keeping the Sei Network safe from quantum computers
TL;DR: Sei Labs has shared a new proposal, SIP-5, that lays out how existing accounts can stay safe once quantum computers are powerful enough to break today’s cryptography. The plan lets users keep current addresses and balances, allowing you to add a quantum-resistant key when you
Sei Labs Publishes the Giga Whitepaper V2
The Sei Giga Whitepaper V2 is a major update to the original Giga Whitepaper published in May 2025. It introduces significant performance improvements and new features to Sei Giga, redesigning Sei Network from first principles into a blockchain with the ideal architecture for onchain trading.
Read the full whitepaper at:
Infrastructure for the Modern Economy
The Blockchain for Trading
What SIP-03 means for exchanges and custodians
There four upgrade paths for exchanges and SEI token custodians. This integration must be completed by June 15, 2026, prior to Cosmos deprecation
Sei Labs Ships Docs for Agents
Technical docs for the Sei protocol have been AI-optimized: a new skill page provides a single, agent-friendly reference skill for end-to-end development on Sei
Ledger Enterprise Now Supports Sei Network: Institutional-Grade Custody Meets High-Performance Infrastructure
Ledger Enterprise now natively supports Sei. Institutions can send and receive tokens on Sei through Ledger Enterprise's web-based platform, with multi-signature governance, role-based access controls, and audit-ready transaction logs built in.
The integration brings Sei's sub-second finality and near-zero fees
x402: Sei’s Proposal For Fee Transparency
x402 volume is continuing to grow exponentially. Partly because facilitators greatly simplify the UX. Across the x402 ecosystem, facilitators have begun turning on fees, which is good and signals demand. Here's our proposal to standardize fee transparency before fragmentation wins (again).
Toku Launches Sei-Native Stablecoin Payroll
Employees and remittances can now be paid and settled instantly on Sei, avoiding the days-long delays of traditional bank settlement
New York, NY - [February 12, 2026] - Sei Development Foundation, an independent US non-profit dedicated to the advancement and adoption of open source, permissionless protocols like Sei Network, today
Ondo's USDY is Live on Sei: Tokenized Treasuries Meet High-Performance Infrastructure
United States Dollar Yield (USDY), Ondo Finance’s flagship yieldcoin backed by tokenized short-term U.S. Treasuries, is now live on the Sei Network.
As the first permissionless tokenized U.S. Treasury Bill primitive to debut on Sei, USDY offers the network’s ecosystem of retail users and institutions
The SIP-3 Upgrade: Making Way for Sei Giga
Giga is coming and there are actions you need to take. Holders of USDC.n should migrate to native USDC or risk losing access to those assets. See this post for options to swap or migrate to native USDC.
Last May, the Sei community accepted SIP-3, a proposal to
The Market Infrastructure Grid: Tooling and Infrastructure System
"The best code is no code at all." — Jeff Atwood
For years, building onchain meant writing it all yourself. Node infrastructure. Wallet authentication. Contract deployment. Debugging tools. Teams spent months solving problems that had nothing to do with their actual product.
That era is over. Now, teams can