MCP Server - PostgreSQL

MCP Server / Database Access M Integrations & Community

Basic Information

  • Developer: Anthropic / Model Context Protocol Community
  • Country/Region: United States
  • GitHub: https://github.com/modelcontextprotocol/servers (archived to servers-archived)
  • Type: MCP Server / Database Access
  • First Release: November 2024
  • License: MIT
  • Development Language: TypeScript

Product Description

The PostgreSQL MCP Server is a reference server implementation initially provided by Anthropic in the modelcontextprotocol/servers repository, enabling AI agents to securely connect and query PostgreSQL databases via the MCP protocol. The server focuses on secure read-only access and schema inspection, allowing AI assistants to understand database structures and perform query analysis. In May 2025, Anthropic archived the server, considering it not yet ready for production use, but the community has since developed several more robust alternative implementations.

Core Features/Characteristics

  • Read-Only Queries: Securely execute read-only SQL queries on PostgreSQL databases
  • Schema Inspection: Automatically discover and display database table structures, column information, and relationships
  • Connection Management: Securely connect to databases via connection strings
  • Natural Language Queries: Convert natural language into SQL queries (in conjunction with LLMs)
  • Metadata Browsing: Browse metadata information for databases, tables, views, etc.

Community Extensions

  • HenkDz/postgresql-mcp-server: Supports configurable read-write access
  • Postgres MCP Pro: Provides advanced database management and performance analysis tools
  • pgEdge Postgres MCP Server: Enterprise-grade PostgreSQL MCP server
  • pgmcp: Supports natural language queries for any Postgres database

Business Model

  • Completely Free and Open Source: MIT License
  • Requires PostgreSQL Database: Users need to prepare their own database instances

Target Users

  • Data analysts and data scientists
  • Backend developers
  • Database administrators
  • AI application developers

Security Considerations

  • Datadog Security Labs reported SQL injection vulnerabilities
  • Recommended to use read-only database user connections
  • Production environments should use community versions that have undergone security audits

Relationship with the OpenClaw Ecosystem

The PostgreSQL MCP Server enables OpenClaw's AI agents to directly query and analyze database data. OpenClaw supports PostgreSQL as an optional database backend. Through the MCP server, AI agents can inspect database structures, execute data analysis queries, generate reports, etc., making it an essential component of OpenClaw's data processing capabilities.

External References

Learn more from these authoritative sources: