
Case study · Fitness coaching
Kondition.
A subscription-based fitness coaching SaaS platform powered by an AI-driven multi-agent chatbot.
- What we built
- Subscription SaaS with multi-agent AI chatbot and admin panel
- Stack
- Next.js, Vercel
- Services
- Web appAI chatbotAdmin panelSubscription billing

About the project
What is Kondition?
This project involved developing a subscription-based fitness coaching SaaS platform powered by an AI-driven multi-agent chatbot. The solution was designed to streamline communication between fitness coaches, their junior staff, and clients while providing personalized guidance and support. By leveraging AI, the platform allows for instant answers to client inquiries, structured knowledge dissemination, and efficient management of coaching workflows. The platform includes two distinct interfaces: one for clients, providing access to personalized fitness, nutrition, and exercise guidance, and one for staff, offering internal protocols, policies, and communication support. Additionally, the system features role-based access for super admins to manage clients, staff, and subscription payments.
Conclusion
The platform successfully combines AI technology, fitness coaching expertise, and SaaS scalability to create a fully automated, multi-agent chatbot solution. By providing structured knowledge, instant query resolution, and subscription-based access control, the solution enhances client satisfaction, optimizes staff workflow, and drives business growth.
The problem
What was slowing them down.
- 01
Consistent, personalized guidance
Difficulty in providing consistent, personalized guidance to multiple clients simultaneously.
- 02
Junior staff communication
Junior staff often struggle to communicate efficiently with senior coaches.
- 03
Tracking client progress
Tracking client progress and access to fitness resources is cumbersome.
- 04
Manual subscription management
Manual management of subscription payments and access control is prone to error.
- 05
Client adherence
Ensuring client adherence to routines, meal plans, and training programs requires ongoing monitoring.
- 06
The need
The client needed a scalable, automated solution to enhance engagement, streamline communication, and provide a structured knowledge base for both staff and clients.
The solution
What we built.
Client-Facing Interface
Provides instant access to fitness guides, weight loss programs, nutrition plans, exercise routines, and food recipes.
- Allows clients to upload images of meals for analysis and feedback.
- Supports subscription-based access via automated payment verification through Stripe API.
Staff-Facing Interface
Offers internal SOPs, rules, communication guidelines, and policies for coaching staff.
- Junior coaches can submit queries to senior coaches via the chatbot and receive instant AI-assisted responses.
Super Admin Panel
Manages clients, staff roles, and access permissions.
- Generates and monitors subscription payments, automatically restricting access for overdue payments.
Results
What changed.
Business value
Enhanced client engagement
Enhanced client engagement through instant access to personalized fitness and nutrition guidance.
Reduced administrative workload
Reduced administrative workload for coaches and staff.
Improved communication
Improved communication between junior and senior staff via AI-assisted query resolution.
Reliable subscription management
Reliable subscription management, ensuring continuous revenue flow.
Scalable solution
Scalable solution capable of accommodating additional clients, coaches, and content without significant overhead.
Key challenges
The hard parts, and how we solved them.
Ensuring a multi-agent AI chatbot can serve both clients and staff efficiently
Developed separate interfaces for clients and staff with distinct knowledge bases and access permissions.
Automating subscription payments while preventing unauthorized access
Integrated Stripe API with automatic 30-day subscription checks and role-based access restriction.
Providing accurate and actionable responses to client and staff queries
Leveraged AI language models to understand and respond to queries, supplemented by curated knowledge bases for fitness guidance and internal protocols.
Scalability and deployment
Deployed the platform on a cloud-based infrastructure to support multiple users and continuous updates.
Tech stack
What it runs on.
- Development
- Next.js
- Deployment
- Vercel
- Database
- PostgreSQL
- AI Agent
- OpenAI GPT-4.1
Process
How we got there.
01User Authentication
Adds clients and staff members, assigning roles and permissions. · Configures subscription plans and Stripe payment integration.
02Client Interaction
Clients access fitness guides, recipes, and exercise routines through the chatbot. · Upload food images to get feedback on nutrition suitability.
03Staff Interaction
Staff access internal knowledge base for SOPs, policies, and communication guidelines. · Junior staff can ask questions to senior staff via the AI chatbot.
04Subscription Management
Stripe API checks user subscription status every 30 days. · Expired subscriptions automatically restrict access to the platform.
05Continuous Knowledge Updates
Admins can upload new PDFs, guides, and SOPs to ensure the chatbot is always updated.
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