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2025-03-26

Mirror ofhttps: //github.com/neondatabase-labs/mcp-server-neon

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Neon MCP Server

npm version npm downloads License: MIT smithery badge

Model Context Protocol (MCP) is a new, standardized protocol for managing context between large language models (LLMs) and external systems. In this repository, we provide an installer as well as an MCP Server for Neon.

This lets you use Claude Desktop, or any MCP Client, to use natural language to accomplish things with Neon, e.g.:

  • Let's create a new Postgres database, and call it "my-database". Let's then create a table called users with the following columns: id, name, email, and password.
  • I want to run a migration on my project called "my-project" that alters the users table to add a new column called "created_at".
  • Can you give me a summary of all of my Neon projects and what data is in each one?

Claude Setup

Installing via Smithery

To install Neon MCP Server for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install neon --client claude

Requirements

  • Node.js >= v18.0.0
  • Claude Desktop
  • Neon API key - you can generate one through the Neon console. Learn more or click here for quick access.

How to use locally

  1. Run npx @neondatabase/mcp-server-neon init $NEON_API_KEY
  2. Restart Claude Desktop
  3. You should now be able to try a simple command such as List me all my Neon projects

Guides

Features

Supported Tools

  • list_projects

  • describe_project

  • create_project

  • delete_project

  • create_branch

  • delete_branch

  • describe_branch

  • get_connection_string

  • run_sql

  • run_sql_transaction

  • get_database_tables

  • describe_table_schema

  • prepare_database_migration

  • complete_database_migration

  • provision_neon_auth

Migrations

Migrations are a way to manage changes to your database schema over time. With the Neon MCP server, LLMs are empowered to do migrations safely with separate "Start" and "Commit" commands.

The "Start" command accepts a migration and runs it in a new temporary branch. Upon returning, this command hints to the LLM that it should test the migration on this branch. The LLM can then run the "Commit" command to apply the migration to the original branch.

Development

Development with MCP CLI Client

The easiest way to iterate on the MCP Server is using the mcp-client/. Learn more in mcp-client/README.md.

npm install
npm run build
npm run watch # You can keep this open.
cd mcp-client/ && NEON_API_KEY=... npm run start:mcp-server-neon

Development with Claude Desktop

npm install
npm run build
npm run watch # You can keep this open.
node dist/index.js init $NEON_API_KEY

Then, restart Claude each time you want to test changes.

Testing

To run the tests you need to setup the .env file according to the .env.example file.

npm run test

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    Reviews

    5 (1)
    Avatar
    user_wySkTMRn
    2025-04-17

    I've been using the neondatabase-labs_mcp-server-neon from MCP-Mirror for a while now, and it's been an outstanding experience. The seamless integration and robust performance make it an essential tool for any database enthusiast. The documentation and support are top-notch, making setup and usability a breeze. Highly recommend checking it out on GitHub!