Flowra has launched new infrastructure that combines competitive blockspace auctions with programmable transaction policies for Solana validators.
Its Open Orderflow Auction altflows registered searchers to compete for transaction inclusion rather than relying on closed orderflow channels, while a separate Programmable Block Policy feature gives validators more control over how their blocks are constructed.
The auction is intended to introduce broader competition into Solana’s MEV market.
Searchers identify opportunities such as arbitrage and compete to have their transactions included in blocks. By creating an open bidding market, Flowra says validators can gain access to more competing participants and potentially earn more from the blockspace they control.
In an early test involving a single validator, Flowra reported a 20.6% increase in compute units per block. The validator moved from 84% to 101% of the network average, while also generating higher block fees than comparable validator software.
The test also recorded 100% block production and 99.999% block engine uptime, according to Flowra.
The Programmable Block Policy layer addresses a different issue by allowing validators to define their own transaction inclusion requirements.
That could enable institutional operators to introduce compliance or risk controls without forcing those same rules across the Solana network.
Flowra recently announced a collaboration with compliance infrastructure company Honeypot, which is bringing sanctions and risk screening to the programmable policy layer.
“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,” said Harry Hwang, CEO of Flowra.
The model is partly inspired by Ethereum’s competitive block-building ecosystem, where builders bid to construct blocks for proposers.
Flowra believes a similar market-based structure can be adapted to Solana despite the network’s different performance and latency requirements.
The company is now onboarding institutional-grade validators, with broader participation expected as the Open Orderflow Auction expands across the Solana ecosystem.
