Klappa MCP

Klappa MCP is an official remote server that connects AI assistants like Claude or ChatGPT to Klappa's spaced-repetition flashcard platform. It exposes 19 tools allowing agents to list, create, and delete decks; generate, search, and rate flashcards; fetch due reviews; and optimize learning profiles, all scoped to the authenticated user's account via OAuth 2.1 or API keys.

Visit Klappa

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

Vendor evidenceStreamable HTTPOAuth sign-inEndpoint checked 2026-11-01Operated by Klappa

You need:Auth: OAuth 2.1 (Claude.ai web and ChatGPT) or a Bearer kl_live_ API key (CLI / desktop)Setup: in Klappa go to Settings > Integrations, generate an API key, then add the connector URL in Claude or ChatGPT and authorize on the Klappa screen.

MCP endpoint (Streamable HTTP)

https://mcp.klappa.app/mcp

Vendor documentation

What you can do with it

Generate atomic flashcards from study notes using AI
Fetch due reviews to quiz the user directly in chat
Create and manage decks and note types
Search existing cards and optimize weak topics

Source and maintenance

Vendor evidenceRegistry 1.0.0

mcp-registry: app.klappa/klappa@1.0.0 Project website

Protocol and capabilities

Server: klappa-mcp 1.0.0
MCP protocol: 2025-06-18
Tools: Sign-in required
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": false
  }
}

Tools

Sign-in required

No tool definitions available.

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 517 ms
95th percentile latency: 517 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 1, 2026, 9:28 PM UTC · probe · passed · 517 ms · metadata changed · refuses unauthenticated tools/list (HTTP 401)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http klappa-mcp https://mcp.klappa.app/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add klappa-mcp --url https://mcp.klappa.app/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable klappa-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "klappa-mcp": {
      "url": "https://mcp.klappa.app/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "klappa-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.klappa.app/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start klappa-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "klappa-mcp": {
      "type": "http",
      "url": "https://mcp.klappa.app/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http klappa-mcp https://mcp.klappa.app/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "klappa-mcp": {
      "url": "https://mcp.klappa.app/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "klappa-mcp": {
      "serverUrl": "https://mcp.klappa.app/mcp"
    }
  }
}

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Do you run Klappa MCP?

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