X (Twitter)LinkedInGitHubDiscordYouTube

How to connect Supabase Read MCP to Claude

Connect Claude Web, Desktop and Cowork to Supabase Read MCP. List all databases in your project, show recent edge function logs, and more using natural language, with authentication handled for you.

Get started for freeGet a demo
Supabase Read MCP logoSupabase Read MCP
Dcr Oauth

Supabase Read MCP is a read-only interface for inspecting Supabase projects and resources. Use it to audit and explore databases, schemas, Edge Functions, logs, and storage without write access.

21 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 Supabase Read account to Claude via Composio Connect, enabling it to list all databases in your project, show recent Edge Function logs, list storage buckets and sizes, 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 Supabase Read MCP with

ChatGPT WorkHermes

Connecting Supabase Read to Claude Web, Desktop, and Cowork

1. Open Customize

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

2. Add the Composio MCP server

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

3. 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

4. Connect your Supabase Read account

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

For example, ask Claude to:

  • "List all databases in your project"
  • "Show recent Edge Function logs"
  • "List storage buckets and sizes"

It will prompt you to authenticate and authorize access.

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

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

The Supabase Read 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 Read account. It provides structured and secure access so your agent can perform Supabase Read operations on your behalf.

Troubleshooting

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

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

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

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

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

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

3. Why does the Supabase Read authorization link not work?

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

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

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

The Supabase Read connection can expire or lose permission.

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

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

Claude can manage the Supabase Read connection for you.

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

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

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

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

Supported Tools

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

Confirm cost

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

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.

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.

Search docs

Search the Supabase documentation using GraphQL.

FRAMEWORKS

How to build Supabase Read MCP Agent with another framework

ChatGPT Work logo

ChatGPT Work

Use Supabase Read MCP with ChatGPT Work

Hermes logo

Hermes

Use Supabase Read MCP with Hermes

FAQ

Frequently asked questions

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

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

Start with Supabase Read MCP.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Supabase Read MCP tool your agent needs.Free to start.

Start building