Flowra Launches Open Orderflow Auction Bringing Transparent and Competitive Block Building to Solana
Seoul, South Korea, August 24th, 2026, Chainwire
New infrastructure enables open competition for Solana blockspace while introducing programmable block policies for validators
Flowra today announced the launch of its Open Orderflow Auction (OOA), a new block-building framework for Solana designed to introduce open competition into the network’s MEV market and increase validator revenue.
The Open Orderflow Auction allows registered searchers to compete for transaction inclusion through a transparent auction rather than relying on closed orderflow channels. By opening blockspace to competitive bidding, Flowra aims to improve price discovery and enable validators to capture a greater share of the value generated by MEV.
In early testing on a single validator, a Flowra-enabled setup increased compute units per block by 20.6%, moving that validator from 84% to 101% of the network average, alongside higher block fees than comparable validator software and 100% block production with 99.999% block engine uptime
In addition to the auction, Flowra is introducing Programmable Block Policy, which allows validators to define their own transaction inclusion policies at the block-building layer. The feature is designed to give validators greater operational flexibility, including the ability to meet regulatory or institutional compliance requirements without changing the underlying Solana protocol. They recently announced a collaboration with compliance infrastructure provider Honeypot to bring sanctions and risk screening to this layer.
“Solana’s performance has made it one of the industry’s leading blockchain networks, but its MEV market remains largely concentrated,” said Harry Hwang , CEO at Flowra. “By opening block building to transparent competition, we’re creating a more efficient market for blockspace while giving validators greater control over how their blocks are constructed with full verifiability and auditability.”
Flowra’s architecture is inspired by the competitive block-building model that emerged on Ethereum, where open bidding significantly increased proposer revenue. The company believes Solana’s high throughput and low-latency design make it well suited for a similar market-based approach to block building.
Flowra is currently onboarding institutional-grade validators to the Open Orderflow Auction, with a broader rollout to follow as the network expands. The Open Orderflow Auction is now available to validators and searchers participating in the Solana ecosystem.
About Flowra
Flowra is a blockchain infrastructure company building validator and order flow solutions for the Solana ecosystem. The company develops technology designed to improve transaction transparency, value distribution, and incentive alignment across validators, users, and builders. Through its validator infrastructure, delegation programs, and MEV-related technologies, Flowra aims to create a more open, efficient, and scalable foundation for the next generation of blockchain networks.