How it actually works
Builder codes
A planned frontend-revenue mechanism described by the project documentation; it is not presented as live yet.
Planned builder-code model
The docs describe a future flow where frontends tag originated intents with a builder identifier and receive a share of protocol-side revenue from those trades.
No extra user fee
The planned builder share is described as coming from protocol LP-revenue allocation rather than as an additional charge layered on top of the trader action.
Integration path
The relayer-only launch profile still controls which submitters can reach the batch executor. Permissionless builder routing depends on a future deployment or configuration profile.
Status
The supplied documentation labels builder codes as coming soon and does not provide a firm activation date.
Papertrade Docs ยท papertrade.network