Build Your Own PostgreSQL MCP Server - n8n Workflow | Neura Market
Build Your Own PostgreSQL MCP Server
Creates a secure PostgreSQL MCP server for managing databases like HR, Payroll, Sales, and Inventory with controlled select, insert, and update operations.
This n8n workflow demonstrates how to build a simple yet powerful PostgreSQL MCP (Model Context Protocol) server. It uses an MCP server trigger connected to five tools: two read-only PostgreSQL nodes for basic queries and three custom workflow tools for select, insert, and update operations. The custom tools enforce a restricted input schema to prevent unsafe raw SQL, constructing statements safely within the workflow. All custom operations route through a shared 'Execute Workflow' trigger with
Platform
n8n
Category
Productivity
Price
$24.99
Creator
Jose Maurino
PostgreSQL
MCP
Database
Automation
AI Integration
CRUD Operations
Server
Security
Workflow Tools
LLM
How to import this workflow into n8n
1Purchase or download the workflow to get the n8n workflow JSON file.
2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
3Open each node marked with a credential warning and connect your own accounts and API keys.
4Run the workflow once manually to verify the data flow, then toggle it to Active.