Calista AI: Your Freemium AI Chatbot for MBTI - Sell Project

Project Overview

Calista AI: Your Gateway to AI-Powered MBTI ExplorationCalista AI is a cutting-edge, full-stack web application that brings the world of personality exploration to life through an intelligent AI assistant. Built around "Calista," an AI personality chatbot, this platform offers a unique blend of conversational AI and comprehensive MBTI (Myers-Briggs Type Indicator) tools.What is Calista AI?Users can engage with Calista for general conversation or dive deep into guided MBTI exploration sessions. T...

Detailed Description

Calista AI: Your Gateway to AI-Powered MBTI Exploration


Calista AI is a cutting-edge, full-stack web application that brings the world of personality exploration to life through an intelligent AI assistant. Built around "Calista," an AI personality chatbot, this platform offers a unique blend of conversational AI and comprehensive MBTI (Myers-Briggs Type Indicator) tools.


What is Calista AI?


Users can engage with Calista for general conversation or dive deep into guided MBTI exploration sessions. The application intelligently interprets user answers and calculates MBTI results, offering an accessible and engaging way to explore personality – a core value for me in developing this project.


Key Features & User Benefits:


  1. AI Chat: Powerful conversational interface driven by Google Generative AI (Gemini) for dynamic user interactions.
  2. Comprehensive MBTI Exploration: Guided chat flows support both quick dichotomy-based assessments and detailed cognitive function tests, providing multiple avenues for personality discovery.
  3. Secure & User-Friendly Authentication: Seamless Google OAuth 2.0 login ensures easy and secure access.
  4. Robust Conversation Management: Users can effortlessly manage, view, and delete their chat histories.
  5. Profile Management: Future-proofed for saving MBTI results directly to user profiles.
  6. Responsive & Intuitive UI: Designed with a modern Angular frontend, ensuring a smooth experience across devices.

Why Buy Calista AI?


This project is a complete, ready-to-deploy SaaS business opportunity. It's a fully-developed platform with a robust technology stack and clear documentation, minimizing setup time for a new owner.


  1. Market-Ready: The application is feature-rich, offering a compelling product for anyone interested in personality insights, AI, or personal development.
  2. Scalable Architecture: Built with Angular (19+), Node.js/Express, and MongoDB, the stack is modern, well-supported, and scalable for growth.
  3. Comprehensive Documentation: Detailed READMEs for Frontend, Backend, API, Database Schema, and a User Guide make ownership and development straightforward.
  4. Monetization Ready: The project includes functionality for freemium models and is prepared for payment integrations like PayPal, making it ready for immediate monetization (I am selling because I cannot personally use these payment gateways from my current location).


  1. Technology Stack Highlights:
  2. Frontend: Angular (~19), TypeScript, RxJs
  3. Backend: Node.js, Express.js
  4. Database: MongoDB (Mongoose ODM)
  5. Authentication: Passport.js (Google OAuth 2.0)
  6. AI: Google Generative AI (Gemini)


This is an exceptional opportunity to acquire a unique, fully-functional AI-powered MBTI platform with significant growth potential.

Content Freshness & Updates

Project Timeline

Created: July 1, 2025 at 12:48 PM (4 months ago)

Last Updated: November 15, 2025 at 8:11 PM (1 day ago)

Update Status: Updated 1.2014470859375 days ago - Recent updates

Version Information

Current Version: 1.0 (Initial Release)

Development Phase: Production Ready - Market validated and ready for acquisition

Next Update: <p>Calista AI offers immense potential for a buyer to scale and expand in the rapidly growing AI and personal development markets. Here are key avenues for taking this project further:</p><p><br></p><p><strong>Monetization &amp; SaaS Growth:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Implement tiered subscription plans for advanced AI features, more MBTI quiz attempts, or premium insights.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Integrate diverse payment gateways (Stripe, Paddle, etc.) to cater to a global audience.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Introduce a freemium model to attract a large user base, converting free users to paying subscribers.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Offer premium reports or personalized coaching sessions based on MBTI results (potentially integrating with human coaches).</li></ol><p><br></p><p><strong>Content &amp; Feature Expansion:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Develop more advanced MBTI-related content, including detailed type descriptions, career guidance, and relationship compatibility analysis.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Integrate additional personality frameworks (e.g., Enneagram, Big Five) to broaden the appeal.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Introduce new AI capabilities, such as journaling prompts, mood tracking, or goal-setting based on personality types.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Add group chat features or forums for users to connect and discuss personality insights.</li></ol><p><br></p><p><strong>Platform Enhancements:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Develop a mobile application (iOS/Android) to reach a wider audience and provide a more native experience.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Enhance the AI's conversational abilities and depth of knowledge through continuous training and fine-tuning.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Implement analytics dashboards for users to track their progress and insights over time.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Improve SEO and content marketing strategies to drive organic traffic and user acquisition.</li></ol><p><br></p><p><strong>Community Building:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Foster an active user community through forums, social media integration, and interactive challenges.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Host webinars or workshops on personality development and AI interaction.</li></ol><p><br></p><p>This project is a solid foundation, primed for a buyer with the right market access and vision to unlock its full potential and establish a strong presence in the personality AI niche.</p>

Activity Indicators

Project Views: 109 total views - Active engagement

Content Status: Published and publicly available

Content Freshness Summary

This project information was last updated on November 15, 2025 and represents the current state of the project. The content is very fresh and reflects recent developments. The project shows active engagement with 109 total views, indicating ongoing interest and relevance.

Visual Content & Media

Project Screenshots & Interface

The following screenshots showcase the visual design and user interface of Calista AI: Your Freemium AI Chatbot for MBTI:

Screenshot 1: Main Dashboard & Primary Interface

This screenshot displays the main dashboard and primary user interface of the application, showing the overall layout, navigation elements, and core functionality. The interface demonstrates the modern design principles and user experience patterns implemented using angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm.

Live Demo & Interactive Experience

Live Demo URL: http://www.aicalista.com

Experience Calista AI: Your Freemium AI Chatbot for MBTI firsthand through the live demo. This interactive demonstration allows you to explore the application's features, test its functionality, and understand its user experience. The live demo showcases the saas application's technical capabilities implemented with angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm and real-world performance, providing a comprehensive understanding of the project's value and potential.

Visual Content Summary

This project includes 1 screenshotno videos plus a live demo, providing comprehensive visual documentation of the saas application. The media content demonstrates the project's technical implementation using angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm and user interface design, showcasing both the visual appeal and functional capabilities of the solution.

Technical Specifications & Architecture

Technology Stack & Implementation

Primary Technologies: angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm

Technology Count: 9 different technologies integrated

Implementation Complexity: High - Multi-technology stack requiring extensive integration expertise

Technology Analysis

angular: Modern technology component for enhanced functionality and performance
typeScript: Modern technology component for enhanced functionality and performance
node.js: JavaScript runtime for server-side development with high performance
mongoDB: NoSQL document database for flexible data storage
Passport.js: Modern technology component for enhanced functionality and performance
Google OAuth 2.0: Modern technology component for enhanced functionality and performance
Gemini: Modern technology component for enhanced functionality and performance
Helmet: Modern technology component for enhanced functionality and performance
npm: Modern technology component for enhanced functionality and performance

System Architecture & Design

Architecture Type: Saas Application

Architecture Pattern: Modern Software Architecture with scalable design patterns

Scalability & Performance

Scalability Level: Standard - Scalable architecture ready for growth

Security & Compliance

Security Level: Commercial-grade security for business applications

Security Technologies: Modern security practices and secure coding standards

Data Protection: Standard data protection practices for user information and application data

Integration & API Capabilities

Live Integration: http://www.aicalista.com - Active deployment with real-world integration

API Technologies: Node.js API server with high-performance endpoints

Integration Readiness: Production-ready for business integration and enterprise deployment

Development Environment & Deployment

Deployment Status: Live deployment with active user base

Next Development Phase: <p>Calista AI offers immense potential for a buyer to scale and expand in the rapidly growing AI and personal development markets. Here are key avenues for taking this project further:</p><p><br></p><p><strong>Monetization &amp; SaaS Growth:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Implement tiered subscription plans for advanced AI features, more MBTI quiz attempts, or premium insights.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Integrate diverse payment gateways (Stripe, Paddle, etc.) to cater to a global audience.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Introduce a freemium model to attract a large user base, converting free users to paying subscribers.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Offer premium reports or personalized coaching sessions based on MBTI results (potentially integrating with human coaches).</li></ol><p><br></p><p><strong>Content &amp; Feature Expansion:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Develop more advanced MBTI-related content, including detailed type descriptions, career guidance, and relationship compatibility analysis.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Integrate additional personality frameworks (e.g., Enneagram, Big Five) to broaden the appeal.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Introduce new AI capabilities, such as journaling prompts, mood tracking, or goal-setting based on personality types.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Add group chat features or forums for users to connect and discuss personality insights.</li></ol><p><br></p><p><strong>Platform Enhancements:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Develop a mobile application (iOS/Android) to reach a wider audience and provide a more native experience.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Enhance the AI's conversational abilities and depth of knowledge through continuous training and fine-tuning.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Implement analytics dashboards for users to track their progress and insights over time.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Improve SEO and content marketing strategies to drive organic traffic and user acquisition.</li></ol><p><br></p><p><strong>Community Building:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Foster an active user community through forums, social media integration, and interactive challenges.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Host webinars or workshops on personality development and AI interaction.</li></ol><p><br></p><p>This project is a solid foundation, primed for a buyer with the right market access and vision to unlock its full potential and establish a strong presence in the personality AI niche.</p>

Technical Summary

This saas project demonstrates advanced technical implementation using angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm with production-ready deployment. The technical foundation supports immediate business integration with modern security practices and scalable architecture.

Common Questions & Use Cases

How to Build a saas Project Like This

Technology Stack Required: angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm

Development Approach: Build a scalable software solution with modern architecture patterns and user-centered design.

Step-by-Step Development Guide

  1. Planning Phase: Define requirements, user stories, and technical architecture
  2. Technology Setup: Configure angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm development environment
  3. Core Development: Implement main functionality and user interface
  4. Testing & Optimization: Test performance, security, and user experience
  5. Deployment: Deploy to production with monitoring and analytics
  6. Monetization: Implement revenue streams and business model

Best Practices for saas Development

Technology-Specific Best Practices

angular Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
typeScript Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
node.js Best Practices: Use async/await patterns, implement proper error handling, follow security best practices, and optimize with clustering and caching.
mongoDB Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
Passport.js Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
Google OAuth 2.0 Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
Gemini Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
Helmet Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
npm Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.

General Development Best Practices

  • Code Quality: Write clean, maintainable code with proper documentation
  • Security: Implement authentication, authorization, and data protection
  • Performance: Optimize for speed, scalability, and resource efficiency
  • User Experience: Focus on intuitive design and responsive interfaces
  • Testing: Implement comprehensive testing strategies
  • Deployment: Use CI/CD pipelines and monitoring systems

Use Cases & Practical Applications

Target Audience & Use Cases

Business Use Cases: This project is ideal for businesses looking to implement a ready-made solution. Perfect for entrepreneurs, startups, or established companies seeking saas solutions.

Comparison & Competitive Analysis

Why angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm?

This project uses angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm because:

  • Technology Synergy: The combination of angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm creates a powerful, integrated solution
  • Robust Backend: Ensures scalable, maintainable server-side architecture
  • Community Support: Large, active communities for ongoing development and support
  • Future-Proof: Modern technologies with long-term viability and updates

Competitive Advantages

  • Modern Tech Stack: angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm provides competitive technical advantages
  • Ready for Market: Production-ready solution with immediate deployment potential

Learning Resources & Next Steps

Learn angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm

To understand and work with this project, consider learning:

  • angular: Official documentation and community learning resources
  • typeScript: Official documentation and community learning resources
  • node.js: Node.js documentation, npm ecosystem, and best practices guides
  • mongoDB: Official documentation and community learning resources
  • Passport.js: Official documentation and community learning resources
  • Google OAuth 2.0: Official documentation and community learning resources
  • Gemini: Official documentation and community learning resources
  • Helmet: Official documentation and community learning resources
  • npm: Official documentation and community learning resources

Hands-On Learning

Try It Yourself: http://www.aicalista.com

Experience the project firsthand to understand its functionality, user experience, and technical implementation. This hands-on approach provides valuable insights into real-world application development.

Project Details

Project Type: Saas

Listing Type: Sell

Technology Stack: angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm

What's Included

domain,source_code,email

Reason for Selling

<p>I am selling Calista AI due to my current geographical location which prevents me from utilizing popular international payment gateways such as PayPal and Stripe. This limitation makes it challenging for me to effectively monetize the project and scale it globally, despite it being fully ready for freemium models and user acquisition. The project is complete, fully functional, and ready for a new owner to take it to market.</p>

Technical Architecture

Technology Stack & Architecture

This saas project is built using a modern technology stack consisting of angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm. The architecture leverages these technologies to create a production-ready solution that can handle real-world usage scenarios.

Architecture Type: Saas - This indicates the project follows modern software architecture patterns.

Technical Complexity: Multi-technology stack requiring integration expertise

Business Context & Market Position

Business Model & Revenue Potential

This project represents a saas business opportunity with established market presence. The project shows strong potential for revenue generation based on its user base and market positioning.

Acquisition Opportunity: <p>I am selling Calista AI due to my current geographical location which prevents me from utilizing popular international payment gateways such as PayPal and Stripe. This limitation makes it challenging for me to effectively monetize the project and scale it globally, despite it being fully ready for freemium models and user acquisition. The project is complete, fully functional, and ready for a new owner to take it to market.</p> This presents an excellent opportunity for acquisition by someone looking to continue development or integrate the technology into their existing business.

Development Context & Timeline

Project Development Timeline

This project was created on July 1, 2025 and last updated on November 15, 2025. The project has been in development for approximately 4.6 months, representing 138.50891237495 days of development time.

Technical Implementation Effort

Implementation Complexity: High - The project uses 9 different technologies (angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm), requiring extensive integration work and cross-technology expertise.

Next Development Phase: <p>Calista AI offers immense potential for a buyer to scale and expand in the rapidly growing AI and personal development markets. Here are key avenues for taking this project further:</p><p><br></p><p><strong>Monetization &amp; SaaS Growth:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Implement tiered subscription plans for advanced AI features, more MBTI quiz attempts, or premium insights.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Integrate diverse payment gateways (Stripe, Paddle, etc.) to cater to a global audience.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Introduce a freemium model to attract a large user base, converting free users to paying subscribers.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Offer premium reports or personalized coaching sessions based on MBTI results (potentially integrating with human coaches).</li></ol><p><br></p><p><strong>Content &amp; Feature Expansion:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Develop more advanced MBTI-related content, including detailed type descriptions, career guidance, and relationship compatibility analysis.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Integrate additional personality frameworks (e.g., Enneagram, Big Five) to broaden the appeal.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Introduce new AI capabilities, such as journaling prompts, mood tracking, or goal-setting based on personality types.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Add group chat features or forums for users to connect and discuss personality insights.</li></ol><p><br></p><p><strong>Platform Enhancements:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Develop a mobile application (iOS/Android) to reach a wider audience and provide a more native experience.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Enhance the AI's conversational abilities and depth of knowledge through continuous training and fine-tuning.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Implement analytics dashboards for users to track their progress and insights over time.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Improve SEO and content marketing strategies to drive organic traffic and user acquisition.</li></ol><p><br></p><p><strong>Community Building:</strong></p><p><br></p><ol><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Foster an active user community through forums, social media integration, and interactive challenges.</li><li data-list="bullet"><span class="ql-ui" contenteditable="false"></span>Host webinars or workshops on personality development and AI interaction.</li></ol><p><br></p><p>This project is a solid foundation, primed for a buyer with the right market access and vision to unlock its full potential and establish a strong presence in the personality AI niche.</p>

Market Readiness & Maturity

Production Readiness: This project is market-ready and has been validated through real user engagement. The codebase is stable and ready for immediate deployment or further development.

Competitive Analysis & Market Position

Market Differentiation

Technology Advantage: This project leverages angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm to create a unique solution in the saas space. The technology stack provides cutting-edge technical implementation that sets it apart from traditional solutions.

Market Opportunity Assessment

Competitive Advantages

  • Proven Market Success: Established user base and revenue stream provide immediate competitive advantage
  • Technical Maturity: Production-ready codebase with real-world testing and optimization
  • Market Validation: User engagement and revenue data prove market demand
  • Modern Technology Stack: angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm provides scalability, maintainability, and future-proofing

About the Creator

Developer: User ID 178959

Project Links

Live Demo: http://www.aicalista.com

Key Features

  • Built with modern technologies: angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm
  • Ready for immediate acquisition

Frequently Asked Questions

What is this project about?

Calista AI: Your Freemium AI Chatbot for MBTI is a saas project that Calista AI: Your Gateway to AI-Powered MBTI ExplorationCalista AI is a cutting-edge, full-stack web application that brings the world of personality exploration to life through an intelligent AI assis....

How much does this project cost?

This project is listed for sale at $ USD. There's also an offer price of $75,000 USD. The price reflects the project's current revenue, user base, and market value.

What's included when I buy this project?

domain,source_code,email You'll receive everything needed to run and maintain the project.

Why is the owner selling this project?

<p>I am selling Calista AI due to my current geographical location which prevents me from utilizing popular international payment gateways such as PayPal and Stripe. This limitation makes it challenging for me to effectively monetize the project and scale it globally, despite it being fully ready for freemium models and user acquisition. The project is complete, fully functional, and ready for a new owner to take it to market.</p> This is a common reason for selling successful side projects.

What technologies does this project use?

This project is built with angular,typeScript,node.js,mongoDB,Passport.js,Google OAuth 2.0,Gemini,Helmet,npm. These technologies were chosen for their suitability to the project's requirements and the developer's expertise.

Can I see a live demo of this project?

Yes! You can view the live demo at http://www.aicalista.com. This will give you a better understanding of the project's functionality and user experience.

How do I contact the project owner?

You can contact the project owner through SideProjectors' messaging system. Click the "Contact" button on the project page to start a conversation about this project.

Is this project still actively maintained?

Since this project is for sale, the current owner may be looking to transfer maintenance responsibilities to the buyer.