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This article details Supabase's new Model Context Protocol (MCP) server integration, enabling developers to expose their database and application logic as tools for external AI agents like ChatGPT or Claude. By leveraging existing Row Level Security (RLS) policies and OAuth flows, the system ensures that every tool call executes with the specific permissions of the signed-in user without requiring elevated service role keys. This development significantly expands the utility of Supabase-backed applications by allowing them to function as first-class citizens within broader AI agent ecosystems.

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Give your Supabase app its own MCP server

SupabaseOctober 22, 20265 min read

Every tool call runs as the signed-in user, so the RLS you already wrote decides what each agent reaches.

At Supabase Select, we announced a way to give your Supabase app its own MCP server. Your customers can use your app from ChatGPT, Claude, or another MCP client. They sign in with the account they already have. Every tool call runs as that user, so your RLS policies decide what each agent can reach. You expose your app’s actions as tools through the Model Context Protocol (MCP). The MCP Server block adds the server code to your project. Supabase Auth handles the OAuth flow. Helpers from @supabase/server give each tool a…

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