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PostgreSQL

A Model Context Protocol server that provides read-only access to PostgreSQL databases. This server enables LLMs to inspect database schemas and execute read-only queries.

Installation Instructions

How to Use Model Context Protocol (MCP) in Claude Code

What is MCP?

Model Context Protocol (MCP) is a protocol that enables LLMs to access custom tools and services. Claude Code can connect to MCP servers to access additional tools and capabilities.

Configuration Steps

  1. Add MCP Server
    • Run: claude mcp add <server-name>
    • Or manually edit ~/.claude/claude_desktop_config.json
  2. Configure MCP Servers
    • Specify servers in the JSON configuration
    • Include necessary arguments and environment variables

Example Configuration

Filesystem Server Example:

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem",
        "/path/to/allowed/files"
      ]
    }
  }
}

Important Notes

  • MCP servers extend Claude Code's capabilities
  • Only servers using the stdio transport type are supported
  • See the Claude Code documentation for more details