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Flash

Official registry Media and design

Spaced-repetition flashcards your AI writes, quizzes you on by voice, and schedules with FSRS.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http flash 'https://flashmemorize.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "flash": {
            "type": "http",
            "url": "https://flashmemorize.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Your AI makes the flashcards, Flash makes sure you remember them.

Hosted version · Every setting · MCP tools · Changelog · Contributing

A self-hosted spaced-repetition server. Connect ChatGPT, Claude or any MCP client: it writes cards into your decks and quizzes you, and Flash schedules every review with FSRS. One Rust binary, one data folder. Imports and exports Anki .apkg decks.

Run it

docker run -d --name flash -p 127.0.0.1:8437:8437 -v flash-data:/data ghcr.io/flash-cards/flash
docker logs flash | grep enroll

Open the enroll link at http://localhost:8437 and you are the admin; invite everyone else from Settings. To serve it beyond your machine, put a TLS reverse proxy in front and set FLASH_BASE_URL to its address (docker-compose.yml is the hardened setup). Your data is the flash-data volume: back it up, and upgrade by pulling a newer image and recreating the container. Locked out? docker exec flash flash-server reset-link you@example.com prints a link to choose a new password (with compose: docker compose exec flash ...).

Installed with docker compose (as up to 0.3.0)? Your data is in that folder's volume (docker volume ls, e.g. flash_flash-data), not in flash-data. Upgrade from the same folder, backing up first, since upgrades only go forward:

docker compose stop flash
docker run --rm -v flash_flash-data:/data -v "$PWD":/backup debian:bookworm-slim \
    tar czf /backup/flash-data.tgz -C /data .
docker compose pull && docker compose up -d

Connect your AI

Add https://<your host>/mcp as a custom connector in ChatGPT, Claude, Grok, Le Chat or Gemini (OAuth, no keys to copy). In a terminal: claude mcp add --transport http flash https://<your host>/mcp. Then say "quiz me on my deck".

The hosted version adds card generation from your files and grading of spoken answers.

License

AGPL-3.0-only, with embedded assets in THIRD_PARTY.md. Contributions are accepted under the CLA.

Frequently asked questions

What is Flash?

Spaced-repetition flashcards your AI writes, quizzes you on by voice, and schedules with FSRS.

How do I install Flash?

It runs as a remote server. In Claude Code: claude mcp add --transport http flash 'https://flashmemorize.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Flash need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Flash open source?

Yes. Its code is on GitHub under the AGPL-3.0 license.

Who maintains Flash?

It is published by flash-cards. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.