What is the key difference between Supabase MCP Server and Grain?

Supabase MCP Server belongs to the Databases category with local stdio execution, while Grain belongs to the Databases category with local stdio execution.

How do I install Supabase MCP Server or Grain in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Supabase MCP Server and Grain free or paid?

Supabase MCP Server operates under a Free / Open Source model (API Key required). Grain operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Supabase MCP Server lists 6 tools with 5 views and 831 GitHub stars. Grain lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Supabase MCP Server and Grain together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Supabase MCP Server vs Grain

In-depth architectural comparison of the Supabase MCP Server and Grain MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Supabase MCP Server

Databases · Local stdio

Quality: 48/100 (Fair) | Auth: API Key required

Grain

Databases · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

Verdict Summary: Choose Supabase MCP Server if you need specialized Databases tools running via a local process. Choose Grain if your workspace requires Databases integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Supabase MCP Server when:

You need dedicated capabilities in the Databases domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: SUPABASE_PROJECT_REF, SUPABASE_DB_PASSWORD, SUPABASE_REGION, SUPABASE_ACCESS_TOKEN, SUPABASE_SERVICE_ROLE_KEY, QUERY_API_KEY.
Primary tools included: Read-only and read-write SQL modes, Runtime SQL risk assessment, Three-tier SQL safety controls.

Explore Supabase MCP Server Details

Choose Grain when:

You need dedicated capabilities in the Databases domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Grain Details

Feature & Specification Comparison

Specification	Supabase MCP Server alexanderzuev Databases	G Grain Databases
Summary	Supabase MCP Server with support for SQL query execution and database exploration tools	Run SQL queries and inspect database schemas through safe, visible MCP tools.
Category & Scope	Databases	Databases

Tools & Capabilities Breakdown

Supabase MCP Server Tools (6)

Read-only and read-write SQL modes

Runtime SQL risk assessment

Three-tier SQL safety controls

Schema exploration and versioning

Supabase Management API access

Auth Admin SDK user management

Grain Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Supabase MCP Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "alexanderzuev-supabase-mcp-server": {
      "command": "uvx",
      "args": [
        "supabase-mcp-server"
      ],
      "env": {
        "SUPABASE_PROJECT_REF": "YOUR_SUPABASE_PROJECT_REF_HERE",
        "SUPABASE_DB_PASSWORD": "YOUR_SUPABASE_DB_PASSWORD_HERE",
        "SUPABASE_REGION": "YOUR_SUPABASE_REGION_HERE",
        "SUPABASE_ACCESS_TOKEN": "YOUR_SUPABASE_ACCESS_TOKEN_HERE",
        "SUPABASE_SERVICE_ROLE_KEY": "YOUR_SUPABASE_SERVICE_ROLE_KEY_HERE",
        "QUERY_API_KEY": "YOUR_QUERY_API_KEY_HERE"
      }
    }
  }
}

Grain Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "grain": {
      "command": "npx",
      "args": [
        "-y",
        "grain"
      ]
    }
  }
}

Frequently Asked Questions

Supabase MCP Server is categorized under Databases and uses a local stdio subprocess. In contrast, Grain belongs to Databases using local stdio subprocess. Select Supabase MCP Server when you need capabilities focused on databases and Grain when you require tools for databases.

More alternatives to Supabase MCP Server More alternatives to Grain Databases category hub