Conducted deep-dive sessions with the client to map every lead source, response workflow, and pain point in the existing tool (NZ Leads). Identified specific UI and performance issues to solve. Defined the architecture and integration strategy before writing code.
A smart SaaS platform that helps businesses respond to inbound leads instantly using AI, improving conversion rates and sales efficiency.
Overview
InstantResponse.ai is an AI-powered MarTech CRM that helps US home-services businesses respond to inbound leads within seconds instead of hours. The client's marketing agency was managing leads from Yelp, Google LSA, and Thumbtack across disconnected dashboards with no source-level visibility. InstantResponse pulls every lead into a single interface, triggers AI-assisted response suggestions in real time, runs automated follow-up sequences, and meters Stripe billing per connected source. Built with React.js, Redux Toolkit, Node.js, Nest.js, PostgreSQL, AWS, and integrations with the Yelp, Google LSA, and WhatsApp APIs, the platform shipped on time with all three lead sources live from day one.
At a glance
Key facts
- 3 lead sources
- Yelp, Google LSA, and Thumbtack APIs unified in one inbox
- Real-time response
- AI-assisted reply suggestions surfaced within seconds of lead arrival
- Per-source Stripe billing
- Subscription metered per connected lead channel
- Multi-tenant by company
- Company-level user management with role-based access for agency clients
- WhatsApp API integration
- Outbound messaging routed through WhatsApp on top of email and SMS
About
About this project
InstantResponse is an AI-powered CRM and lead response platform built for modern sales and marketing teams that rely on inbound leads. The product helps companies respond to leads within seconds, not minutes or hours by mean of AI-driven workflows, automated messaging, and centralized lead management.
The Challenge
The challenge
- 01
The client's marketing agency managed lead generation for dozens of home services businesses across the US. Leads arrived from Yelp, Google LSA, and Thumbtack with no centralized system. Leads were disappearing between platforms, response times were too slow, and there was zero visibility into source-level ROI.
- 02
Designing a dashboard that sales teams could use under pressure - where speed is everything. The interface needed to surface new leads instantly, make AI-assisted responses feel natural and trustworthy, and support different workflow patterns across multiple client accounts without adding complexity.
- 03
Building real-time integrations with Yelp, Google LSA, and Thumbtack APIs - each with different data formats, rate limits, and authentication methods. The system needed to process incoming leads in seconds, trigger AI-generated response suggestions, and scale reliably as the agency added more client accounts.
Deliverables
What we delivered
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Automated follow-up sequences and smart routing
Time-based sequences trigger after first contact and route leads between reps based on availability, source, and account — replacing manual reminder lists.
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Company-level user management with role-based access
Multi-tenant model where each client company has its own users, permissions, and lead pool, while the agency owner sees everything across companies.
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Multi-source lead management from single interface
Leads from Yelp, Google LSA, and Thumbtack drop into one inbox with consistent fields, source tags, and response state — no more switching dashboards.
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Real-time lead notifications and response tracking
Push and in-app notifications fire the moment a lead arrives; every reply, call, and status change is timestamped against the lead for clear audit.
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Stripe billing management per connected source
Each connected lead source bills as its own line item through Stripe, so agency clients can scale up or down without negotiating new contracts.
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Yelp, Google LSA, and Thumbtack API integrations
Three production integrations with different data formats, rate limits, and auth schemes — normalized into one consistent lead model inside the CRM.
Results
The results
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10×
Faster lead response time compared to manual multi-platform workflows - from hours to minutes
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25-35%
Improvement in lead-to-contact rate during early usage, driven by faster response times and AI-assisted messaging
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100%
On-time launch of the web platform with all three lead source integrations live from day one
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Up to 60%
Reduction in manual sales follow-up effort through automated sequences and smart routing
The Process
How we worked
Each engagement runs the same defined workflow — discovery, design, build, and handover — adapted to the project's specific scope.
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Step 1 / 4 -
Step 2 / 4 Designed a sales-first interface optimized for speed and clarity. Every screen was designed for the workflow of a sales rep working under time pressure - lead details, response composition, and follow-up tracking visible without clicks or scrolling.
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Step 3 / 4 Built the platform with real-time lead ingestion from all three sources, AI-powered response suggestions using LLM integration, automated follow-up sequences, and Stripe-based billing per connected source. Engineered for horizontal scaling as client accounts grow.
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Step 4 / 4 Load-tested with simulated multi-source lead volumes, validated AI response quality with real lead data, tested billing flows end-to-end, and launched with monitoring dashboards to track system performance in production.
Testimonials
What clients say
“Their ability to translate the vision into a working product while keeping everything efficient, cost-effective, and user-friendly stood out. They truly acted as partners, not just service providers.”
1 / 5
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