Using the Lendex service, brokers can request and obtain decisions in principle and submit full mortgage applications directly through to lender back-office systems.
It means advisers digitally complete, submit, administer and track applications, while maintaining a compliant audit trail.
A further two lenders are set to be live on the system in the coming weeks, to collectively cover a third of mortgages sold in the UK.
And Mortgage Brain said more lenders were interested in signing up, taking coverage to more than half the market.
Affinity Mortgages, Arun Estates, Fluent for Mortgages and Mortgage Advice Brokerage are among the advisers currently participating in the pilot, with more to be added over the coming months.
Nuneaton-based Mortgage Advice Agency was the first adviser to place a case using the Lendex system.
End to end journey
Mark Lofthouse, chief executive officer of Mortgage Brain (pictured), said: “We’re really pleased with the way that brokers have adopted Lendex and the positive feedback about its ease of use and how it benefits their business.
“It’s important to have a complete end to end journey from initial enquiry through to application submission and the Mortgage Brain proposition delivers this.
“We know from our conversations with brokers who’ve worked with us throughout the development and piloting of Lendex that it delivers on the promise of obtaining a DIP quickly and the reuse of information already held to efficiently submit and track full applications.
“The lenders already taking part recognise the quality of applications being received and how the mortgage application process is being streamlined for the benefits of brokers, their clients and lenders alike.”