Flowra Brings Open Orderflow Auction to Solana Block Building

Flowra has launched an Open Orderflow Auction for Solana, introducing a new block-building framework designed to increase competition in the network's MEV market and potentially boost validator revenue.

The system allows registered searchers to compete for transaction inclusion through an open auction instead of relying primarily on closed orderflow channels. This model can improve price discovery for Solana blockspace while giving validators access to a broader pool of competing bidders, according to Flowra.

In early testing on a single validator, Flowra said its infrastructure increased compute units per block by 20.6%, moving the validator from 84% to 101% of the Solana network average. The company also reported higher block fees than comparable validator software, 100% block production and 99.999% block engine uptime.

Alongside the auction, Flowra is introducing Programmable Block Policy, which allows validators to define their own transaction inclusion policies at the block-building layer. This feature gives validators more operational flexibility, particularly those facing institutional or regulatory requirements, without requiring changes to the underlying Solana protocol.