How to connect Supabase to ChatGPT

1. 1. Enable Supabase in Metorial

   In your Metorial portal, enable the Supabase MCP server and sign in with the account that owns the data. Access stays governed by your team policies.

2. 2. Add a custom MCP server

   On ChatGPT web, open Plugins, select +, then Add custom MCP server.

3. 3. Paste your Metorial MCP URL

   Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>), choose OAuth and accept the risk notice.

4. 4. Create and install the plugin

   Select Create as a plugin, install it and sign in to load Supabase tools.

• Invoke Database Function: Call a PostgreSQL function (RPC) through the Supabase REST API.
• Manage Project: Create, pause, restore, or delete a Supabase project.
• Manage Storage Objects: List, inspect, upload, update, download, move, copy, or delete files in Supabase Storage buckets.
• Manage Edge Functions: List, get, create, update, or delete Supabase Edge Functions.
• Manage Table Rows: Insert, update, upsert, or delete rows in a Supabase table using the auto-generated REST API.
• List Projects: List all Supabase projects accessible to the authenticated user.
• Manage Storage Buckets: List, get, create, update, empty, or delete storage buckets in a Supabase project.
• Run SQL Query: Execute a raw SQL query against a Supabase project's PostgreSQL database via the Management API.
• List Organizations: List all Supabase organizations accessible to the authenticated user.
• Get Auth Config: Retrieve or update the authentication configuration for a Supabase project.
• Manage Secrets: List, create, or delete secrets (environment variables) for a Supabase project.
• Manage Auth Users: List, get, create, update, or delete authentication users in a Supabase project.
• Get Project: Retrieve detailed information about a specific Supabase project, including its configuration, status, database host, and API keys.
• Query Table: Query rows from a Supabase table using the auto-generated REST API (PostgREST).
• Get Project Logs: Query Supabase project logs through the Management API.
• And 2 more on the Supabase MCP server page.

• Type @ and pick the plugin. The selection applies to that message only, so @mention it again when a follow-up needs fresh Supabase data.
• For write actions, ChatGPT may ask you to confirm first, depending on the app permissions and the action.
• Once published for a workspace, ChatGPT keeps a snapshot of the tool list. When your team adds Supabase tools in Metorial, an admin refreshes the actions in Workspace settings before they appear.
• You can use several apps in one prompt, for example read Supabase data and then create a ticket in another app.

Add custom MCP server is missing

Workspace policy controls it. On Enterprise and Edu, an admin grants the permission to create plugins with MCPs; ask them to enable it for you.

The plugin exists but no tools appear

Creating the plugin is not enough: install it from your plugins, then start a new conversation so ChatGPT loads its tools.

ChatGPT answers without using the tools

Pick the plugin with @ in the composer and name the action you want, for example "use Metorial to look up the latest ticket".

Based on the ChatGPT MCP documentation.