What is Quizlar?
Quizlar is a voice-led flashcard and quiz MCP server that uses FSRS spaced repetition to schedule memory reviews. It lets Claude, Cursor, Cline, Windsurf, or any MCP-compatible client create decks from YouTube videos, PDFs, web pages, or pasted text, and run auto-graded quizzes with a tiered grading pipeline (exact-match → phonetic → LLM). It’s ideal for learners and educators who want AI-powered, memory‑optimized study sessions.
How to use Quizlar?
Mint an API key at https://quizlar.app/settings/api-keys (format: sk-qz‑<32 chars>). Then configure your MCP client’s mcpServers to point to https://mcp.quizlar.app/mcp/ with Bearer token authentication. Cursor, Windsurf, Claude Desktop, Cline, and Smithery setup snippets are provided in the README. Windsurf supports Streamable HTTP natively; other clients use mcp-remote as a stdio wrapper.
Key features of Quizlar
- Create flashcard decks from YouTube, PDFs, URLs, or text.
- Auto‑graded quizzes with exact‑match → phonetic → LLM grading.
- FSRS spaced repetition tracks real memory state per answer.
- 22 tools mapped 1:1 to learner verbs (ingest, quiz, review, manage).
- Bearer API key and OAuth 2.1 with PKCE authentication.
- Hosted server at
mcp.quizlar.app (closed‑source; config repo is MIT).
Use cases of Quizlar
- Study YouTube lectures by turning them into spaced‑repetition flashcard decks.
- Extract key concepts from PDF textbooks and quiz yourself automatically.
- Review web articles with auto‑graded quizzes that adapt to your memory.
- Import shared decks and collaboratively track progress with FSRS.
- Integrate memory‑aware quizzes into AI‑assisted learning workflows.
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