I will build ai agents using langchain, langgraph, crew ai with tool calling


About this gig
I build production-ready AI agent systems single agents, multi-agent pipelines, and autonomous workflows using LangChain, LangGraph, and CrewAI. These are systems that can use tools, call APIs, search the web, query databases, and complete complex tasks step by step without you touching anything.
What makes an AI agent different from a chatbot?
A chatbot answers questions. An AI agent takes action.
It can search the web, read files, query a database, call an API It can break a big task into steps and execute each one It can loop, reflect on its own output, and self-correct Multiple agents can work together as a team each handling a different role
That's what I build.
What I'll deliver:
Custom AI agent built with LangChain, LangGraph, or CrewAI Tool calling setup web search, APIs, file readers, custom tools Multi-agent systems with defined roles, tasks, and handoffs ReAct, Reflection, or Reflexion architecture (based on your use case) LangGraph state machines for controlled, reliable agent flow CrewAI crews with specialized agents working in parallel or sequence Memory integration so agents remember context across steps Clean Python code with full comments and a setup guide.
Get to know Muhammad Saqib
AI Engineer
- FromPakistan
- Member sinceSep 2022
Languages
English
My Portfolio
FAQ
Question: What information do I need to provide before you start?
Answer: Just tell me what task you want the agent to perform, which tools it should use (web search, documents, APIs), and your preferred interface (Gradio or Flask). I will handle the rest.
Question: Which AI models do you use for the agent?
Answer: I use GPT-4o-mini or GPT-4 for cloud-based agents, and Llama 3.2 via Ollama for fully local agents with zero API costs. I recommend the best option based on your budget and privacy needs.
Question: Will I get the full source code?
Answer: Yes. Every package includes full Python source code, a requirements.txt file, and clear instructions to run the agent locally. You own everything I deliver.
Question: Can you integrate the agent into my existing website or app?
Answer: Yes — this is available as a paid extra. I can integrate the agent into an existing Flask or FastAPI backend. Message me with your current tech stack before ordering.
Question: What if I am not satisfied with the delivery?
Answer: I offer revisions with every package. I also recommend messaging me before ordering to align on requirements — this prevents misunderstandings and ensures you get exactly what you need.

