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How to connect Supabase MCP to Claude

Connect Claude Web, Desktop and Cowork to Supabase MCP. List all projects and their databases, deploy edge function from repo branch, and more using natural language, with authentication handled for you.

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Supabase MCP is Supabase's hosted MCP server for managing projects, databases, edge functions, storage, and workflows. Use it to manage Supabase resources and development workflows from a single hosted control plane.

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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 Supabase account to Claude via Composio Connect, enabling it to list all projects and their databases, deploy edge function from repo branch, create new branch for your database, 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.

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Connecting Supabase 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 Supabase account

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

For example, ask Claude to:

  • "List all projects and their databases"
  • "Deploy edge function from repo branch"
  • "Create new branch for your database"

It will prompt you to authenticate and authorize access.

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

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

The Supabase MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Supabase account. It provides structured and secure access to your projects, databases, development branches, Edge Functions, storage configuration, and logs, so your agent can manage projects, run SQL and migrations, manage branches, deploy Edge Functions, and investigate logs on your behalf.

  • Project and organization management: Have your agent list organizations and projects, inspect project details and costs, create new projects, or pause and restore existing ones.
  • Database development: Direct your agent to list tables, extensions, and migrations, execute SQL, apply migrations, and generate TypeScript types from your database schema.
  • Branch workflows: Let the agent create, list, rebase, reset, merge, or delete development branches as your database changes move toward production.
  • Edge Functions and storage: Instruct your agent to inspect and deploy Edge Functions, list storage buckets, and review or update project storage settings.
  • Debugging and guidance: Have your agent query project logs, review advisory notices, and search Supabase documentation when you need help diagnosing an issue.

Troubleshooting

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

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

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

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

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

  • 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 Supabase.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Supabase authorization link not work?

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

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

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

The Supabase connection can expire or lose permission.

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

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

Claude can manage the Supabase connection for you.

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

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

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

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Supabase 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 Supabase.
TOOLS

Supported Tools

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

Apply migration

Applies a migration to the database.

Confirm cost

Ask the user to confirm their understanding of the cost of creating a new project or branch.

Create branch

Creates a development branch on a Supabase project.

Create project

Creates a new Supabase project.

Delete branch

Deletes a development branch.

Deploy edge function

Deploys an Edge Function to a Supabase project.

Execute sql

Executes raw SQL in the Postgres database.

Generate typescript types

Generates TypeScript types for a project.

Get advisors

Gets a list of advisory notices for the Supabase project.

Get cost

Gets the cost of creating a new project or branch.

Get edge function

Retrieves file contents for an Edge Function in a Supabase project.

Get organization

Gets details for an organization.

Get project

Gets details for a Supabase project.

Get project url

Gets the API URL for a project.

Get publishable keys

Gets all publishable API keys for a project, including legacy anon keys (JWT-based) and modern publishable keys (format: sb_publishable_.

Get storage config

Get the storage config for a Supabase project.

List branches

Lists all development branches of a Supabase project.

List edge functions

Lists all Edge Functions in a Supabase project.

List extensions

Lists all extensions in the database.

List migrations

Lists all migrations in the database.

List organizations

Lists all organizations that the user is a member of.

List projects

Lists all Supabase projects for the user.

List storage buckets

Lists all storage buckets in a Supabase project.

List tables

Lists all tables in one or more schemas.

Merge branch

Merges migrations and edge functions from a development branch to production.

Pause project

Pauses a Supabase project.

Query logs

Runs a custom read-only ClickHouse SQL query against a Supabase project's unified logs stream, for filtering, aggregating, or joining across log fields more precisely than a simple per-service log dump.

Rebase branch

Rebases a development branch on production.

Reset branch

Resets migrations of a development branch.

Restore project

Restores a Supabase project.

Search docs

Search the Supabase documentation using GraphQL.

Update storage config

Update the storage config for a Supabase project.

FRAMEWORKS

How to build Supabase MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Supabase MCP with ChatGPT

Hermes logo

Hermes

Use Supabase MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Supabase MCP with Atomic Agent

FAQ

Frequently asked questions

With a standalone Supabase MCP server, the agents and LLMs can only access a fixed set of Supabase tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Supabase 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 Supabase tools.

Yes, absolutely. You can configure which Supabase 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 Supabase data and credentials are handled as safely as possible.

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