Fintech · 2025

MARY — the AI voice assistant that qualifies mortgage applicants before a broker picks up the phone.

MARY is an AI voice assistant built for Mortgage Propeller — a real-time speech-to-speech agent that handles initial applicant qualification, matches them to an available FCA-authorised broker, creates the customer record, and books the call, all without human involvement.

Mortgage Propeller
Client
Custom Software, AI & Automation
Service
3 months
Duration
2025
Year
Mortgage Propeller
Fintech
The bottleneck

Qualified leads going cold before a broker answered.

As Mortgage Propeller's broker network grew, the bottleneck shifted from the platform to the first conversation. Applicants were dropping off during initial qualification calls — wait times, availability gaps, and inconsistent screening meant qualified leads were going cold before a broker ever spoke to them. The team needed a way to handle that first touchpoint at any hour, at any volume, without adding headcount.

What we built

An AI that qualifies, matches, creates the record, and books the call.

  • 01MARY — real-time AI speech-to-speech voice assistant for applicant qualification
  • 02Automated broker matching based on applicant profile and broker availability
  • 03Live customer record creation in the broker platform during the call
  • 04Calendar integration to book broker calls without human handoff
  • 05Built on Twilio and OpenAI Realtime API with low-latency voice infrastructure
The result

24/7 qualification. Zero broker time on screening calls.

24/7
Always-on qualification
~38%
More worked opportunities (industry benchmark)
Zero
Broker time on screening
Twilio + OpenAI
Real-time voice stack

Your first touchpoint losing leads?
AI handles it now.

30-minute scoping call. No pressure. Clear next steps.

Book a scoping call