Quizlar MCP Server

Quizlar is voice-powered AI flashcards with spaced repetition. This MCP server lets Claude, Cursor, Cline, or any MCP-compatible client:

• Create flashcard decks from YouTube videos, PDFs, web pages, or raw text

• Run interactive text quizzes with automatic grading

• Track memory with FSRS spaced repetition

Voice quizzing happens in the Quizlar web app — the MCP server delivers the deck-creation and text-quizzing tools to your editor.

This repo hosts the registry submission (server.json) for the hosted MCP server at https://mcp.quizlar.app/mcp/. The server itself is closed-source; this repo is the public discovery surface.

Setup

1. Mint an API key at https://quizlar.app/settings/api-keys (format: sk-qz-<32 chars>).

2. Add Quizlar to your MCP client using the snippets below.

Claude Desktop

In claude_desktop_config.json (or via the Connectors UI):

{
  "mcpServers": {
    "quizlar": {
      "type": "streamable-http",
      "url": "https://mcp.quizlar.app/mcp/",
      "headers": { "Authorization": "Bearer sk-qz-..." }
    }
  }
}

Cursor

~/.cursor/mcp.json:

{
  "mcpServers": {
    "quizlar": {
      "url": "https://mcp.quizlar.app/mcp/",
      "headers": { "Authorization": "Bearer sk-qz-..." }
    }
  }
}

Cline

In Cline's settings, add a new MCP server:

• URL: https://mcp.quizlar.app/mcp/

• Header: Authorization: Bearer sk-qz-...

Links

• Listing: registry.modelcontextprotocol.io (search "Quizlar")

• App: https://quizlar.app

• Issues: https://github.com/quizlar/mcp-server/issues

License

MIT for this configuration repo. The hosted MCP server itself is proprietary.