Flashcards for Grok.
Flash is a spaced-repetition flashcard app Grok can drive. Add it once as a custom connector, then just ask: Grok writes cards from whatever you're learning, quizzes you card by card — in chat, or out loud through Grok's voice mode — grades you strictly, and Flash schedules the next review with FSRS.
What Grok can do once it's connected
01
Make the cards
Paste a chapter, lecture notes, a vocabulary list — or just describe the topic. Grok turns it into a deck of clean question-and-answer cards in Flash.
02
Quiz you, even by voice
Say “let's study cardiology.” Grok asks each due card — typed or spoken through its voice mode — and tells you whether you got it: strict on numbers, doses, and names.
03
Grade and schedule
Every answer is rated Again, Hard, Good, or Easy and handed to FSRS, so you see each card again right before you'd forget it. Nothing to configure.
Set up in about a minute
Add the connector
On grok.com, open Connectors → New Connector → Custom, paste the URL below as the MCP server, and sign in to Flash with your passkey when it asks. Grok discovers Flash's tools automatically.
https://flashmemorize.com/mcp
Prefer a guided path?
The connect page has every option — Claude, ChatGPT, Grok, and Claude Code.
Why not just ask Grok to quiz me?
You can, and it works — for one session. Then the chat scrolls away and everything you drilled goes with it. Flash gives Grok a memory: every card, every answer, and every review date lives in your account, synced across devices, exportable to Anki or CSV whenever you like. Tomorrow, or next month, Grok picks up exactly where you left off and asks only what's due.
Free for your first 1,000 cards.
No card required. Pro is $5/mo or $40/year for unlimited cards.