I will build ai chatbots or agents with fastapi, langchain and langgraph

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umer0986
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umer0986
Muhammad Umar
build ai chatbots or agents with fastapi, langchain and langgraph
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build ai chatbots or agents with fastapi, langchain and langgraph

About this gig

I am a Python/AI developer specializing in FastAPI and LangChain/LangGraph systems. I will deliver a production-ready AI API or chatbot tailored to your needs, leveraging the latest LLM and knowledge-graph frameworks. Typical deliverables: multiple FastAPI endpoints (CRUD), LLM integration (OpenAI/GPT4, etc.), vector search/RAG on your data, and n8n workflow automation. Each project includes setting up a secure database (PostgreSQL or your choice) and authenticating users (JWT/API keys).

My service covers:

  • AI Agent/Chatbot: A custom conversational agent using LangChain/LangGraph, capable of task decomposition and multi-step reasoning.
  • RAG Pipeline: Ingest your documents/data into a vector database (e.g. Pinecone, Chroma) for Retrieval-Augmented Generation.
  • FastAPI Backend: Clean Python code with endpoints for chat and API calls, plus Swagger docs.
  • n8n Integration: Connect your workflow (n8n or similar) so AI triggers can automate tasks (emails, CRM updates, etc.).
  • Security & Deployment: JWT-based auth, Docker setup, and deployment guidance for AWS/GCP.

I focus on clear, maintainable code and fast delivery. Please message me before ordering to discuss your exact requirements.

  • Bot type

    • Customer Service & Support
    • E-commerce & Payments
    • Scheduling & Assistance
    • Learning & Development
    • Other

  • AI engine

    • Gemini
    • Open AI GPT
    • Claude.ai
    • ChatGPT
    • Ollama

  • Programming language

    • JavaScript
    • Python
    • TypeScript
    • React

  • Tools & frameworks

    • n8n
    • Other

  • Platforms

    • WhatsApp
    • Telegram
    • Websites
    • Mobile Apps
    • Slack

Get to know Muhammad Umar

Muhammad Umar

Turning ideas into web apps with clean code

  • FromPakistan
  • Member sinceJun 2023
  • Avg. response time1 hour

  • Languages

    Urdu, English
I'm Muhammad Umar, an AI & Full-Stack Developer specializing in custom AI chatbots, web apps, and automation. I build scalable solutions with clean code using LangChain, LangGraph, FastAPI, React.js, and databases. What I offer: AI chatbots, RAG integration, custom APIs, responsive web apps, workflow automation. Why me: Clean code, clear communication, quick delivery, client-focused solutions. Let's create intelligent apps together — message me to discuss your project.

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