You will get a production-ready MCP server connecting your SaaS to ChatGPT | OpenAI
Top Rated
Project details
I've already shipped and published AI apps through real marketplace review, Colossyan's first ChatGPT app and their Canva app, both live today. You get production standards from day one, not a prototype.
You will get a production-ready MCP server that connects your product to ChatGPT. I take your existing API and turn it into secure, well-designed MCP tools so your users can search data, create records, and trigger actions directly from their AI assistant.
Every build includes tool design mapped to your API, authentication, error handling, deployment on your infrastructure, documentation, and a recorded handover walkthrough. Higher tiers add write actions, OAuth, automated tests, and submission support for ChatGPT connector directories.
To start, send your API docs and a one-line description of your product. You'll have a build plan mapping your endpoints to MCP tools within 24 hours.
You will get a production-ready MCP server that connects your product to ChatGPT. I take your existing API and turn it into secure, well-designed MCP tools so your users can search data, create records, and trigger actions directly from their AI assistant.
Every build includes tool design mapped to your API, authentication, error handling, deployment on your infrastructure, documentation, and a recorded handover walkthrough. Higher tiers add write actions, OAuth, automated tests, and submission support for ChatGPT connector directories.
To start, send your API docs and a one-line description of your product. You'll have a build plan mapping your endpoints to MCP tools within 24 hours.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$1,500
|
Standard
$2,500
|
Advanced
$4,500
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
Number of Revisions | 1 | 2 | 4 |
Design Customization | |||
Content Upload | - | - | |
Responsive Design | - | ||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$250 - $1,500
32 reviews
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LS
Leo S.
Jun 12, 2026
Convert HTML to Google Form
Excellent job
JL
Jo L.
Apr 4, 2026
Next Js based Full Stack Dynamic Quiz App
I was extremely impressed with Hamza. Not being techy myself, and not having used Upwork too much previously, I was nervous about what quality and communication I would receive. Hamza was super communicative, easy to speak to, understood my requirements, worked fast and to a very high quality. He was always concerned with client satisfaction and outcomes. He was happy for revisions - though not too many were required - and has even offered ongoing support. Would wholeheartedly recommend and I look forward to using him again in the future. Jo, Aces High (Founder / CEO) - London, UK
MM
Marko M.
Nov 13, 2025
Web app needed - break app for 40 staff
Hamza was fantastic to work with! The web app he built exceeded my expectations and was delivered ahead of schedule. He’s professional, responsive, and truly cares about delivering top-quality work. Communication was smooth from start to finish, and I’ll definitely be working with him again!
AH
Anastasia H.
Nov 1, 2025
Coming Soon Page Needed for Fashion Brand
Muhammad was fast, responsive and a great professional to work with. I will definitely be using him again for future projects.
LS
Lloyd S.
Oct 20, 2025
Database & Front End Support
Muhammed did an excellent job, he was a fantastic communicator, very accommodating and proactive throughout the project. He provided clear video updates explaining his work and asking thoughtful questions to ensure everything was aligned. Highly skilled and highly recommended.
About Hamza
AI Integration Engineer | OpenAI, Claude, MCP Servers | SaaS, Next.js
100%
Job Success
Lahore City, Pakistan - 6:44 pm local time
A recent client said it better than I could: "Every promise he makes, he delivers on usually ahead of schedule." (5.0 — full review in my work history)
WHAT I'VE SHIPPED
- Colossyan's first published OpenAI App: ChatGPT Apps SDK, LLM workflows, custom MCP server, live on chatgpt
- An AI video generation app on the Canva Apps SDK, live in the Canva marketplace
- Hatchproof: LLM tool-calling, prompt routing, memory/context, and a VAPI voice screener inside a real hiring product
5+ years of production Next.js/Node/Python systems for US startups (Colossyan, Qumulo)
WHAT I DO FOR YOUR SAAS
- AI integration: OpenAI, Claude, Gemini. Chatbots, embedded copilots, ChatGPT Apps, MCP servers, AI features inside your existing product
- AI agents that do real work which includes tool-calling, routing, memory, RAG, voice (VAPI)
- The product around the AI, multi-tenant SaaS, auth, billing, admin dashboards, API-first Next.js/Node backends
HOW I WORK
I help define how the AI should behave, not just take tickets. Clean boundaries between the AI layer and your product. Production-safe from day one: evals, fallbacks, logging, cost control. I'm an individual engineer, not an agency. I take ownership-level work with small senior teams.
Stack: Next.js, React, TypeScript, Node.js, NestJS, Python, PostgreSQL, OpenAI, Claude, LangChain, MCP, VAPI, RAG, AWS.
Building an AI feature or agent into your SaaS or need someone to own the AI inside it? Send a message with what you're building. I reply within a few hours.
Steps for completing your project
After purchasing the project, send requirements so Hamza can start the project.
Delivery time starts when Hamza receives requirements from you.
Hamza works on your project following the steps below.
Revisions may occur after the delivery date.
Project Ideation
Final Discussion with Client