Turn PostgreSQL Into an AI Chatbot Using MCP, LangGraph & Ollama LLM
Автор: AIBytesTamil
Загружено: 2025-12-31
Просмотров: 5
In this video, we build and demo an MCP PostgreSQL server that connects PostgreSQL, LangGraph, and a remote Ollama LLM, plus a Streamlit UI for chatting with your database.
🔹 What you’ll see
MCP server exposing PostgreSQL CRUD tools (db_query, db_list_tables, db_insert, db_update, db_delete, etc.).
LangGraph agent that uses these tools to answer natural language questions about the database.
Streamlit app with chat interface, data explorer, and live connection status.
Example workflows: direct SQL tools, agent reasoning, conversation memory, and multi‑step flows.
🔹 Repo
GitHub: https://github.com/tamilselvan-sde/MC...
🔹 Tech stack
Python 3.8+
PostgreSQL 15+ (Docker/Podman container)
LangGraph for workflow orchestration and memory
Ollama LLM (gpt-oss:120b-cloud) as remote model endpoint
Streamlit for the web UI
MCP (Model Context Protocol) tools for DB + agent access
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