Supabase MCP Server

A Model Context Protocol (MCP) server for interacting with Supabase databases. This server provides tools for querying tables and generating TypeScript types through the MCP interface.

Features

• Query Tables: Execute queries on any table with support for:

  • Schema selection
  • Column filtering
  • Where clauses with multiple operators
  • Pagination
  • Error handling

• Type Generation: Generate TypeScript types for your database:

  • Support for any schema (public, auth, api, etc.)
  • Works with both local and remote Supabase projects
  • Direct output to console
  • Automatic project reference detection

Prerequisites

1. Node.js (v16 or higher)
2. A Supabase project (either local or hosted)
3. Supabase CLI (for type generation)

Installation

1. Clone the repository:

git clone https://github.com/yourusername/supabase-mcp-server.git
cd supabase-mcp-server

2. Install dependencies:

npm install

3. Install the Supabase CLI (required for type generation):

# Using npm
npm install -g supabase

# Or using Homebrew on macOS
brew install supabase/tap/supabase

Configuration

1. Get your Supabase credentials:

   • For hosted projects:

     1. Go to your Supabase project dashboard
     2. Navigate to Project Settings > API
     3. Copy the Project URL and service_role key (NOT the anon key)

   • For local projects:

     1. Start your local Supabase instance
     2. Use the local URL (typically http://localhost:54321)
     3. Use your local service_role key

2. Configure environment variables:

# Create a .env file (this will be ignored by git)
echo "SUPABASE_URL=your_project_url
SUPABASE_KEY=your_service_role_key" > .env

3. Build the server:

npm run build

Integration with Claude Desktop

1. Open Claude Desktop settings:

   • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
   • Windows: %APPDATA%\Claude\claude_desktop_config.json
   • Linux: ~/.config/Claude/claude_desktop_config.json

2. Add the server configuration:

{
  "mcpServers": {
    "supabase": {
      "command": "node",
      "args": ["/absolute/path/to/supabase-mcp-server/build/index.js"],
      "env": {
        "SUPABASE_URL": "your_project_url",
        "SUPABASE_KEY": "your_service_role_key"
      }
    }
  }
}

Integration with VSCode Extension

1. Open VSCode settings:

   • macOS: ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
   • Windows: %APPDATA%\Code\User\globalStorage\saoudrizwan.claude-dev\settings\cline_mcp_settings.json
   • Linux: ~/.config/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json

2. Add the server configuration (same format as Claude Desktop).

Usage Examples

Querying Tables

// Query with schema selection and where clause
<use_mcp_tool>
<server_name>supabase</server_name>
<tool_name>query_table</tool_name>
<arguments>
{
  "schema": "public",
  "table": "users",
  "select": "id,name,email",
  "where": [
    {
      "column": "is_active",
      "operator": "eq",
      "value": true
    }
  ]
}
</arguments>
</use_mcp_tool>

Generating Types

// Generate types for public schema
<use_mcp_tool>
<server_name>supabase</server_name>
<tool_name>generate_types</tool_name>
<arguments>
{
  "schema": "public"
}
</arguments>
</use_mcp_tool>

Available Tools

query_table

Query a specific table with schema selection and where clause support.

Parameters:

• schema (optional): Database schema (defaults to public)
• table (required): Name of the table to query
• select (optional): Comma-separated list of columns
• where (optional): Array of conditions with:
  • column: Column name
  • operator: One of: eq, neq, gt, gte, lt, lte, like, ilike, is
  • value: Value to compare against

generate_types

Generate TypeScript types for your Supabase database schema.

Parameters:

• schema (optional): Database schema (defaults to public)

Troubleshooting

Type Generation Issues

1. Ensure Supabase CLI is installed:

supabase --version

2. For local projects:

   • Make sure your local Supabase instance is running
   • Verify your service_role key is correct

3. For hosted projects:

   • Confirm your project ref is correct (extracted from URL)
   • Verify you're using the service_role key, not the anon key

Query Issues

1. Check your schema and table names
2. Verify column names in select and where clauses
3. Ensure your service_role key has necessary permissions

Contributing

1. Fork the repository
2. Create your feature branch: git checkout -b feature/my-feature
3. Commit your changes: git commit -am 'Add my feature'
4. Push to the branch: git push origin feature/my-feature
5. Submit a pull request

License

MIT License - see LICENSE file for details