I will build an ai saas backend API with stripe subscriptions and openai or groq


About this gig
Want to launch a viral AI tool but stuck on complex token tracking, streaming data, and subscription paywalls? I will build a production-ready, hyper-fast AI SaaS backend API engine using Node.js, Express, TypeScript, and Groq or OpenAI.
What This Gig Includes:
High-Performance AI Core: Prompt execution utilizing Groq or OpenAI with contextual conversation memory and structured token usage metering schemas.
Stripe Billing Gateway: Tiered subscription layers paired with secure middleware that validates active user status and auto-rejects queries when prompt limits are reached.
File Streaming Pipeline: Advanced engine to securely upload, store, and stream-parse reference PDF documents for localized context extraction.
Clean Architecture: Production-grade database modeling via Prisma ORM (PostgreSQL) and isolated multi-environment containers using Docker.
️ Note: This is a strict backend API-only service. No frontend UI or dashboard design layout is included.
Get a rock-solid, high-throughput AI infrastructure engineered for scale. Order now!
Get to know Mohamed Ibrahim
Backend Developer
- FromEgypt
- Member sinceJun 2026
Languages
English
FAQ
Does this gig include a chat interface or a web dashboard?
No, this is a strict backend API service. You will receive the complete database schemas, subscription gate validation middleware, PDF processing engines, and AI streaming routes. Your frontend team can easily connect any frontend setup to these structured data endpoints.
Can I switch between Groq and OpenAI easily?
Yes! Because Groq's SDK is fully OpenAI-compatible, the backend core is engineered using clean, decoupled interfaces. You can instantly toggle between Groq's ultra-fast Llama models and OpenAI's models simply by changing a string value inside your local environment configuration (.env) file.

