# AI agent for PostgreSQL: run queries and visualize data via chat interface
This automation template enables chat-based interaction with a PostgreSQL database using an AI agent built on LangChain and Anthropic. Users send natural language commands — the agent translates them into SQL, executes operations, and returns results, including visualizations. Ideal for teams prototyping or implementing no-code database access powered by AI.
## Who it´s for
- Developers prototyping chat-based database access
- Analysts leveraging AI to query PostgreSQL data
- Tech leads deploying MCP servers with visualization capabilities
- Teams automating routine database tasks via natural language
- AI agent architects working with relational data
## What the automation does
- Processes incoming chat messages as database commands
- Triggers an AI agent (LangChain + Anthropic) to interpret requests
- Performs CRUD operations: read, create, and update records in PostgreSQL
- Retrieves table schemas and contents upon request
- Generates visualizations (charts, graphs) via Plot tool from queried data
- Can be triggered by chat input or external workflow call
## What´s included
- Ready-to-use n8n workflow
- Trigger and handler logic based on chatMessageReceived and executeWorkflowTrigger
- Integrations with PostgreSQL, Anthropic API, and MCP Server
- Basic textual instructions for launch and adaptation
## Requirements for setup
- Access to an n8n instance with LangChain and MCP support
- Anthropic account with active API key
- PostgreSQL access (host, port, DB name, credentials)
- Configured MCP server integrated with LangChain
## Benefits and outcomes
- Enables non-developers to interact with databases via chat
- Reduces time spent on routine SQL queries and updates
- Allows instant data visualization from natural language requests
- Accelerates development and testing of AI agents with DB access
- Supports hybrid triggers: user commands and automated calls
## Important: template only
Important: you are purchasing a ready-made automation workflow template only. Rollout into your infrastructure, connecting specific accounts and services, 1:1 setup help, custom adjustments for non-standard stacks and any consulting support are provided as a separate paid service at an individual rate. To discuss custom work or 1:1 help, contact via chat
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