Flowra has launched its Open Orderflow Auction for Solana, introducing an open block-building system that allows registered searchers to compete for transaction inclusion while giving validators greater control over blockspace and MEV revenue.
Opening Solana's MEV Market
The framework changes how transaction inclusion is offered to searchers. Rather than routing orderflow through closed channels, registered participants can bid openly for access to blockspace. Flowra expects this model to create clearer competition around transaction inclusion and allow validators to receive more of the value generated by MEV.
The Open Orderflow Auction is now available to validators and searchers, while Flowra continues onboarding institutional-grade validators ahead of a broader rollout. The company's aim is to improve transaction transparency, value distribution, and incentive alignment among validators, users, and builders.
Early Testing Results
Flowra reported results from testing its setup on a single validator. The Flowra-enabled validator increased compute units per block by 20.6%, moving from 84% to 101% of the network average. Flowra also reported higher block fees than comparable validator software, achieving 100% block production and 99.999% block engine uptime.
Those figures come from early testing on one validator and serve as the company expands onboarding across institutional-grade validators in the Solana ecosystem.
Programmable Block Policy
Alongside the auction, Flowra introduced Programmable Block Policy, allowing validators to define transaction inclusion policies at the block-building layer. This gives validators operational flexibility, including the ability to address regulatory or institutional compliance requirements without changing the underlying Solana protocol.
Flowra recently announced a collaboration with compliance infrastructure provider Honeypot to bring sanctions and risk screening to the block-building layer. The policy system lets validators control how blocks are constructed while retaining verifiability and auditability.
Inspiration From Ethereum
Flowra's architecture takes inspiration from the competitive block-building model that emerged on Ethereum, where block builders submit bids and validators select the most profitable offer. Flowra believes Solana's high-throughput, low-latency design can support a similar market-based approach.
Solana's performance has made it one of the industry's leading blockchain networks, but its MEV market remains largely concentrated, said Flowra CEO Harry Hwang. By opening block building to transparent competition, we're creating a more efficient market for blockspace while giving validators greater control.
The auction is available to validators and searchers across the Solana ecosystem as the network continues to expand, potentially reshaping how MEV is distributed and how blocks are built on the high-performance blockchain.
