ReplyMagic
Automate your Instagram conversations with AI-generated smart replies and real-time engagement.

Overview
ReplyMagic needed a seamless and approved Meta API integration focused exclusively on Instagram messaging. Their goal was to automate smart replies to Instagram comments and DMs using AI, while offering a personalized tone and scalable subscription management. After struggling with internal implementations, they engaged me to achieve app approval, API integration, and reliable automation.
Client Type
SaaS Founder
Industry
Marketing Automation / Customer Engagement
Key Features
Powerful capabilities that solved the client's business challenges
AI-Powered Instagram Comment Replies
Dynamic, context-aware responses generated using advanced AI models for Instagram interactions.
Personalized AI Tone & Behavior
Tailored AI response styles to match each brand's unique voice and customer expectations.
Efficient Webhook System
Real-time, highly reliable webhooks fetching Instagram comments and DMs instantly without delay.
Stripe Top-up Feature
Allows users to top-up their account balance seamlessly for automated services through Stripe.
Stripe Payment Gateway Integration
Fully secured and streamlined payment processing for subscription and usage-based billing.
Multi-Account Management
Centralized dashboard to manage responses across multiple Instagram business accounts with ease.
Scalable Architecture
Designed to handle high-volume client demands, ensuring minimal latency and high reliability.
Challenge & Solution
The Challenge
ReplyMagic needed advanced permissions like `instagram_manage_comments` approved quickly.
Internal devs faced difficulties with webhook reliability, API rate limits, and proper permission documentation.
There was no personalization layer for AI replies, leading to generic responses.
They required a secure, seamless way to manage billing for users via Stripe.
The Solution
I implemented a comprehensive solution to address ReplyMagic's challenges:
Precise API Scoping & Permission Request
Thorough planning of minimal yet powerful permission sets, avoiding over-requesting.
Professional Documentation & Screencast
Detailed permission usage explanation and screencast video showcasing the compliant, approved flow.
Webhook Optimization
Implemented a scalable and retry-safe webhook system to capture Instagram events instantly.
AI Personalization Layer
Integrated OpenAI GPT-4 models with configurable tone settings for brands (formal, casual, witty, etc.).
Stripe Payment + Top-Up Integration
Developed and integrated secure Stripe payment gateway for easy balance management and subscription models.
Robust Backend Architecture
Built with Node.js, Firebase, and Vercel for scalability, security, and minimal downtime.
Tech Stack

Results
Measurable outcomes and business impact
Meta App Approved in 5 Days
First submission, no rejections or revisions.
4x Boost in Instagram Engagement
Smart replies created highly personalized customer interactions.
Handled 50+ Client Accounts Seamlessly
Built to scale and manage spikes during campaigns.
99.9% Webhook Success Rate
Fast and reliable comment fetching even under load.
Secure, Automated Payments via Stripe
Easy top-ups and subscriptions streamlined client usage.
"Saurabh delivered exactly what we needed. The app got approved immediately, the AI replies feel human, and the Stripe integration made user onboarding seamless. Highly recommend if you want reliable, scalable Instagram automation!"
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