# Flashcards Open Source App

> Read and write open-source flashcards and decks through split read/write MCP tools.

- **Type:** MCP server
- **Install:** `agentstack add mcp-kirill-markin-flashcards-open-source-app`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [kirill-markin](https://agentstack.voostack.com/s/kirill-markin)
- **Installs:** 0
- **Category:** [Databases](https://agentstack.voostack.com/c/databases)
- **Latest version:** 1.14.0
- **License:** MIT
- **Upstream author:** [kirill-markin](https://github.com/kirill-markin)
- **Source:** https://github.com/kirill-markin/flashcards-open-source-app
- **Website:** https://flashcards-open-source-app.com/

## Install

```sh
agentstack add mcp-kirill-markin-flashcards-open-source-app
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Flashcards Open Source App

AI-powered open-source flashcards app for iOS, Android, and web.

Flashcards Open Source App is an open-source AI-powered flashcards app built for serious daily study on iOS, Android, and the web. Use it to prepare for exams, learn vocabulary, memorize technical terms and facts, improve your material with AI, and review with spaced repetition. The project also includes an external agent API for terminal and AI-agent workflows.

## Available on

- [iOS](https://apps.apple.com/us/app/flashcards-open-source-app/id6760538964)
- [Android](https://play.google.com/store/apps/details?id=com.flashcardsopensourceapp.app&pcampaignid=web_share)
- [Web](https://app.flashcards-open-source-app.com/review)
- MCP server: https://mcp.flashcards-open-source-app.com/mcp
- Agent API: https://api.flashcards-open-source-app.com/v1/

## Card scheduling

Card scheduling uses FSRS-based spaced repetition. Detailed scheduling rules live in [docs/fsrs-scheduling-logic.md](docs/fsrs-scheduling-logic.md).

## MCP connector

The hosted MCP server is available at `https://mcp.flashcards-open-source-app.com/mcp` and is listed in MCP registries as `com.flashcards-open-source-app/flashcards`. It exposes three workspace-scoped tools: `list_workspaces`, `sql_query`, and `sql_execute`.

Interactive clients authenticate with OAuth 2.1 authorization code + PKCE and Dynamic Client Registration. Headless clients can use an `fca_` Bearer token.

- [MCP connector docs](https://flashcards-open-source-app.com/docs/mcp-connector/)
- [Agent API docs](https://flashcards-open-source-app.com/docs/api/)
- [Privacy](https://flashcards-open-source-app.com/privacy/)
- [Support](https://flashcards-open-source-app.com/support/)

## Docs

- [iOS app](apps/ios/README.md)
- [Android app](apps/android/README.md)
- [Web app](apps/web/README.md)
- [Architecture](docs/architecture.md)
- [Backend and web deployment](docs/backend-web-deployment.md)
- [Public site URLs (`PUBLIC_SITE_BASE_URL`)](docs/public-site-urls.md)
- [Release gates and monitoring](docs/release-gates.md)
- [iOS local setup](docs/ios-local-setup.md)
- [iOS CI/CD](docs/ios-ci-cd.md)
- [Android CI/CD](docs/android-ci-cd.md)
- [Agent API](https://api.flashcards-open-source-app.com/v1/)

## License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

## Author

- [Kirill Markin](https://github.com/kirill-markin)

## Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [kirill-markin](https://github.com/kirill-markin)
- **Source:** [kirill-markin/flashcards-open-source-app](https://github.com/kirill-markin/flashcards-open-source-app)
- **License:** MIT
- **Homepage:** https://flashcards-open-source-app.com/

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v1.14.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **1.14.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/mcp-kirill-markin-flashcards-open-source-app
- Seller: https://agentstack.voostack.com/s/kirill-markin
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.