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Quizlar — voice-powered AI flashcards with spaced repetition MCP Server

by quizlar Your server? Claim it
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Quizlar — voice-powered AI flashcards with spaced repetition is answering right now. Last checked 14 min ago. Last commit 21 May 2026.

Voice-led, FSRS-scheduled flashcards from YouTube, PDFs, web, or text. Auto-graded quizzes.

Uptime history 48 days of history · worst day 97%
48 days agonow
100.0%
Uptime 24h
91 of 91 checks
—
Tools
hidden behind auth
997 ms
Response time
average over 24h
0
Stars
last commit 21 May 2026

Quizlar — voice-powered AI flashcards with spaced repetition does not always answer

Over the last week it answered 99.4% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

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Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

run in your terminal
claude mcp add mcp-server --transport http https://mcp.quizlar.app/mcp/
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mcp-server": {
      "url": "https://mcp.quizlar.app/mcp/"
    }
  }
}
~/.codex/config.toml
[mcp_servers.mcp-server]
url = "https://mcp.quizlar.app/mcp/"
.cursor/mcp.json
{
  "mcpServers": {
    "mcp-server": {
      "url": "https://mcp.quizlar.app/mcp/"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "mcp-server": {
      "url": "https://mcp.quizlar.app/mcp/"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URLTransportStateLatencyChecked
https://mcp.quizlar.app/mcp/ streamable-http sign-in 456 ms 14 min ago

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Quizlar — voice-powered AI flashcards with spaced repetition — questions

Answers built from our own checks of this server.

Why is there no tool list for Quizlar — voice-powered AI flashcards with spaced repetition?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.
Is Quizlar — voice-powered AI flashcards with spaced repetition working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 997 ms. The bar chart above shows every period we have measured.
How do I connect Quizlar — voice-powered AI flashcards with spaced repetition?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to Quizlar — voice-powered AI flashcards with spaced repetition?
No API key is involved. Quizlar — voice-powered AI flashcards with spaced repetition answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is Quizlar — voice-powered AI flashcards with spaced repetition?
It answers our handshake in 997 ms on average, which is faster than 9% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Quizlar — voice-powered AI flashcards with spaced repetition open source?
Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.