I thought building an MCP server was the hard part. It wasn't.
A developer details the challenges encountered while building an MCP server to integrate Prompt Builder with Claude Desktop and Cursor. The primary obstacle was authentication, as the MCP server, running as a separate process, could not inherit the user's existing browser session or authentication tokens. To solve this, a custom API key system was developed, storing hashed keys in a Supabase database to provide long-lived, secure access for private user components. AI
IMPACT Enables developers to integrate custom prompt management tools with AI assistants like Claude Desktop.