Self-Hosted Supabase MCP Server

execute_sql

Run SQL queries directly on a self-hosted Supabase database using a direct connection or RPC fallback, enabling flexible database interactions within MCP-compatible environments.

Instructions

Executes an arbitrary SQL query against the database, using direct database connection when available or RPC function as fallback.

Input Schema

Name	Required	Description	Default
`read_only`	No	Hint for the RPC function whether the query is read-only (best effort).
`sql`	Yes	The SQL query to execute.

Input Schema (JSON Schema)

{
  "properties": {
    "read_only": {
      "default": false,
      "description": "Hint for the RPC function whether the query is read-only (best effort).",
      "type": "boolean"
    },
    "sql": {
      "description": "The SQL query to execute.",
      "type": "string"
    }
  },
  "required": [
    "sql"
  ],
  "type": "object"
}

Install Server

HTTP connection URL

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