0n3
MCP servers · database

Supabase MCP server

Backend-as-a-service — database, auth, storage, edge functions. Hosted by 0n3: 6 endpoints your AI can call with your own Supabase account, from Claude, ChatGPT, Cursor, Claude Code, Codex or Gemini CLI. One sign-in, one key per AI, a receipt for every call.

Connect SupabaseInstall into your AIWatch it work

6 endpoints4 categoriesauth: api_keyhosted

What your AI can do with Supabase

Auth · Manage auth users1
List usersGET /auth/v1/admin/users
Storage · Manage file storage1
List bucketsGET /storage/v1/bucket
Data · CRUD on database tables0
CRUD on database tables
More · Everything else this app exposes.4
Query tableGET /rest/v1/{table}
Insert rowPOST /rest/v1/{table}
Update a rowPATCH /rest/v1/{table}
Delete a rowDELETE /rest/v1/{table}

Install in three steps

  1. Create a free account at 0n3.app and connect Supabase: paste a key or sign in through a door. It lands in your vault, encrypted.
  2. Open 0n3.app/install, pick your AI. A key is made for that AI alone; copy the line it gives you.
  3. Ask your AI: whoami. It answers with your connected services. Then ask it to list users in Supabase.
Install (user scope — every project)
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"

Connect Supabase to

Claude Code + SupabaseMCP server + skillClaude (desktop & claude.ai) + SupabaseconnectorChatGPT + Supabaseconnector · GPT actionCodex CLI + SupabaseMCP serverGemini CLI + SupabaseMCP serverCursor + SupabaseMCP serverVS Code (Copilot) + SupabaseMCP serverWindsurf + SupabaseMCP server

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Questions

What can an AI do with the Supabase MCP server?

6 things: auth, storage, data, more. Every call runs with your own Supabase connection and lands on a receipt.

Do I need to run anything on my computer?

No. 0n3 is hosted. Connect Supabase once, install 0n3 into your AI with one line, done.

Where does my Supabase key go?

Into your 0n3 vault, encrypted, one record per connection. The AI never sees it.