NihFix.Postgres.Mcp

NihFix.Postgres.Mcp is a lightweight and efficient Model Context Protocol (MCP) server for PostgreSQL, built to allow AI agents to interact with databases easily and in real-time.
It supports two transport types: STDIO for direct process communication and SSE (Server-Sent Events) for streaming data over HTTP.

Features

• 🗄️ Connects seamlessly to PostgreSQL databases.
• 🧠 Designed for AI agent database interaction.
• 🔥 Supports SSE and STDIO transport protocols.
• 🐳 Easy to run in isolated Docker containers.
• ⚡ Minimal and optimized for fast response times.

Quick Start (SSE Mode)

docker run -i --rm   -e McpServerOptions__ServerType=Sse   -e McpServerOptions__ConnectionString="Host=host.docker.internal;Port=5432;Database=MyDbName;User ID=dbUser;Password=dbUserPassword;"   -p 3002:8080   nihfix/postgres.mcp

Then define server url in your client:

http://localhost:3002/sse

Quick Start (STDIO Mode)

Example MCP client configuration for STDIO:

{
  "mcpServers": {
    "postgres": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "McpServerOptions__ConnectionString",
        "nihfix/postgres.mcp",
        "--access-mode=unrestricted"
      ],
      "env": {
        "McpServerOptions__ConnectionString": "Host=host.docker.internal;Port=5432;Database=MyDbName;User ID=dbUser;Password=dbUserPassword;"
      }
    }
  }
}

Environment Variables

Variable	Description	Required	Example
McpServerOptions__ServerType	Server mode (Sse or Stdio)	Yes (for SSE)	Sse
McpServerOptions__ConnectionString	PostgreSQL connection string	Yes	Host=host.docker.internal;Port=5432;Database=MyDb;User ID=user;Password=pass;

Requirements

• Docker
• PostgreSQL server (12+ recommended)

License

MIT License.

Links

• DockerHub