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I will build langgraph ai agents with mcp tools and workflow automation
Harim Choi
4.7
4.7
About this gig
I build LangGraph AI agents that connect tools, APIs and business workflows.
The agreed scope can include structured inputs and outputs, conditional routing, parallel tool calls, human approval, error handling and a FastAPI endpoint. Integrations may include MCP servers, search, document extraction or CRM systems such as HubSpot.
I developed google-surf-mcp, a seven-tool search server with automatic knowledge graph construction and hybrid retrieval, ranked in the top 1% on MCP TOPLIST. I also delivered a travel planning workflow with flight and hotel search, package comparison and CRM follow-up.
Deliverables include the agreed source code, configuration instructions and a demonstration. API subscriptions, hosting and operating costs are separate unless explicitly included.
Please share your workflow, target tools, sample inputs and expected outputs. We will define a focused first version and review criteria before starting.
Get to know Harim Choi
Harim Choi
Machine Learning Engineer, AI Agents, MCP and Computer Vision
- FromSouth Korea
- Member sinceJun 2025
- Last delivery1 year
Languages
English, Korean
I build AI agents, MCP servers, computer vision models and document automation pipelines. I have 7+ years of experience in data analysis, automation and predictive systems. My work includes COCO-Val segmentation SOTA at 53.31% mIoU, INT3 LLM quantization and CUDA optimization, and google-surf-mcp, ranked in the top 1% on MCP TOPLIST. I work with Python, PyTorch, LangGraph, FastAPI and Docker, from data preparation to deployment. Based in Seoul. Korean native speaker and fluent in English, with flexible working hours.
github: https://github.com/HarimxChoi
My Portfolio
FAQ
What relevant agent development experience do you have?
I built google-surf-mcp for search, automatic knowledge graph construction and hybrid retrieval, and delivered a LangGraph travel planning workflow with external APIs and CRM follow-up. I work across agent logic, Python services and deployment.
What if my workflow is very complex?
We first map the workflow, integrations and failure cases, then define a focused first version. Complex systems may need staged delivery or a custom scope rather than a standard package.
Can you integrate with our existing systems?
I can integrate supported APIs, MCP tools, databases and webhooks when authorized access and documentation are available. Please share the target systems before ordering so I can check feasibility and scope.
What if the agent doesn't work as expected?
We agree on representative test cases and expected outputs before implementation. I document limitations and address issues within the agreed scope and revisions. New integrations or requirements may need a separate milestone.
Reviews
1 reviews for this Gig
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C calebowens702
United States
Harim recently completed a critical project for us, and not only did he deliver excellent results — he did so with impressive speed. The turnaround time was remarkably fast without sacrificing any attention to detail or quality. It was a clear example of his ability to execute efficiently while maintaining high standards.
$200-$400
Price
2 days
Duration
G 
Seller's Response
Helpful?
Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C calebowens702
United States
Harim recently completed a critical project for us, and not only did he deliver excellent results — he did so with impressive speed. The turnaround time was remarkably fast without sacrificing any attention to detail or quality. It was a clear example of his ability to execute efficiently while maintaining high standards.
$200-$400
Price
2 days
Duration
G Seller's Response
Helpful?
