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How to connect Neon MCP to Claude

Connect Claude Web, Desktop and Cowork to Neon MCP. Create a new neon project and database, deploy branch to staging and run migrations, and more using natural language, with authentication handled for you.

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Neon MCP is a managed platform for Neon projects, branches, and databases. Use it to streamline development workflows and manage databases with clarity.

35 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Neon account to Claude via Composio Connect, enabling it to create a new Neon project and database, deploy branch to staging and run migrations, list all databases and their branches, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Neon MCP with

ChatGPTHermesAtomic Agent

Connecting Neon to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Neon account

Back in Claude, ask it to connect to Neon or give it any Neon-related task.

For example, ask Claude to:

  • "Create a new Neon project and database"
  • "Deploy branch to staging and run migrations"
  • "List all databases and their branches"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Neon account is ready to use.

What is the Neon Claude Connector, and what's possible with it?

The Neon MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Neon account. It provides structured and secure access so your agent can perform Neon operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for Neon?

The connector can show as connected, but Claude must use it in each Neon conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Neon again.

2. Why does Claude show an MCP server error before Neon connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Neon.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Neon.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Neon authorization link not work?

The Composio connector is one server. Your Neon account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Neon connection.
  • Composio creates a fresh Neon authorization link.
  • Open that link in your browser and finish the Neon sign-in.

4. Why do Neon actions fail after they worked before?

The Neon connection can expire or lose permission.

  • Ask Claude to inspect the Neon connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Neon account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Neon.
  • If the action still fails with a permission error, check that the connected account has that permission in Neon itself.

5. How do I switch to a different Neon account?

Claude can manage the Neon connection for you.

  • Ask Claude to disconnect or delete the current Neon account.
  • Ask Claude to connect Neon again.
  • Open the new Composio authorization link for Neon.
  • Sign in with the other Neon account in the browser.
  • After the account connects, ask Claude to retry the Neon task.

6. Why is my Neon connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Neon connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Neon tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Neon.
TOOLS

Supported Tools

Every Neon MCP action and event your agent gets out of the box.

Compare database schema

Use this tool to compare the schema of a database between two branches.

Complete database migration

Complete a database migration by applying changes to the main branch and cleaning up the temporary branch.

Complete query tuning

Complete a query tuning session by either applying the changes to the main branch or discarding them.

Configure neon auth

Configure Neon Auth for a branch by specifying an `operation`.

Create branch

Create a branch in a Neon project for isolated development or testing.

Create project

Create a new Neon project with a default database and branch.

Delete branch

Delete a branch and all its data.

Delete project

Delete a Neon project and all its data.

Describe branch

Get a tree view of all objects in a branch, including databases, schemas, tables, views, and functions.

Describe project

Get details and configuration of a specific Neon project.

Describe table schema

Get column definitions, data types, and constraints for a specific table.

Explain sql statement

Analyze the query execution plan for a SQL statement using EXPLAIN ANALYZE.

Fetch

Fetch detailed information about a specific organization, project, or branch using the ID returned by the `search` tool.

Get connection string

Get a PostgreSQL connection string for a Neon database.

Get database tables

List all tables in a Neon database.

Get doc resource

Fetches a specific Neon documentation page as markdown content.

Get neon auth config

Read full Neon Auth configuration for a branch.

Inspect database

Reach for this first when asked why a database is slow, large, bloated, or behind.

List branch computes

List compute endpoints for a project or branch.

List docs resources

Lists all available Neon documentation pages by fetching the index from https://neon.

List log fields

List the log fields whose values list_log_field_values can enumerate for a branch.

List log field values

List the distinct values of a log field (e.

List organizations

List all organizations the current user belongs to.

List projects

List Neon projects in your account.

List shared projects

List projects shared with the current user for collaboration.

List slow queries

Use this tool to list slow queries from your Neon database.

Prepare database migration

This tool performs database schema migrations by automatically generating and executing DDL statements.

Prepare query tuning

This tool helps developers improve PostgreSQL query performance for slow queries or DML statements by analyzing execution plans and suggesting optimizations.

Provision neon auth

Provisions Neon Auth for a Neon branch.

Provision neon data api

Provisions the Neon Data API for a Neon branch.

Query logs

Query logs emitted by your Neon serverless functions (and other services like storage).

Reset from parent

Reset a branch to its parent's current state, discarding all changes made on the branch.

Run sql

Use this tool to execute a single SQL statement against a Neon database.

Run sql transaction

Use this tool to execute a SQL transaction against a Neon database, should be used for multiple SQL statements.

Search

Search across all organizations, projects, and branches by keyword.

FRAMEWORKS

How to build Neon MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Neon MCP with ChatGPT

Hermes logo

Hermes

Use Neon MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Neon MCP with Atomic Agent

FAQ

Frequently asked questions

With a standalone Neon MCP server, the agents and LLMs can only access a fixed set of Neon tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Neon and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Neon tools.

Yes, absolutely. You can configure which Neon scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Neon data and credentials are handled as safely as possible.

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