Semantic Postgres MCP
What is the Semantic PostgreSQL MCP Server?
This server acts as a bridge between AI assistants (like Claude) and your PostgreSQL database. It enables you to ask questions in plain English and get answers from your database without writing SQL queries.How does it work?
The server understands the meaning behind your database structure and questions using AI-powered semantic search. It translates your natural language questions into SQL queries and returns the results.When should I use this?
Ideal for business users who need database insights without SQL knowledge, or developers who want to quickly explore database contents using natural language.Key Features
Semantic SearchUnderstands the meaning behind your questions and database structure, not just keyword matching.
Natural Language QueriesAsk questions in plain English instead of writing SQL queries.
Schema UnderstandingAutomatically understands your database structure and relationships between tables.
No Schema ChangesWorks with your existing database without requiring modifications.
Pros and Cons
Advantages
Makes database access accessible to non-technical users
Saves time by eliminating the need to write SQL queries
Understands complex relationships in your data
Works with existing PostgreSQL databases
Limitations
Requires initial setup and configuration
Needs OpenAI API for semantic capabilities
Performance depends on database size and complexity
May require tuning for optimal results
Getting Started
Set up PostgreSQL
Ensure you have PostgreSQL 13+ with pgvector extension installed.
Install the MCP Server
Clone the repository and install dependencies.
Configure Environment
Set up your PostgreSQL and OpenAI credentials in the .env file.
Start the Server
Launch the MCP server to begin accepting connections.
Connect Claude Desktop
Configure Claude Desktop to connect to your MCP server.
Example Queries
Customer InformationGet complete information about customers
Inventory CheckIdentify products needing restocking
High-Value OrdersFind significant orders
Data RelationshipsUnderstand how data connects
Frequently Asked Questions
Do I need to modify my existing database?
What PostgreSQL versions are supported?
Can I use this with other AI assistants besides Claude?
Is my data sent to OpenAI?
How accurate are the generated SQL queries?
Additional Resources
MCP Protocol Documentation
Official documentation for the Model Context Protocol
pgvector Extension
PostgreSQL extension for vector similarity search
Claude Desktop
Information about Claude AI assistant
Sample Database Schemas
Example database schemas to get started
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