Flashcards Open Source App
Read and write open-source flashcards and decks through split read/write MCP tools.
Install
$ agentstack add mcp-kirill-markin-flashcards-open-source-app ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v1.14.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v1.14.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/mcp-kirill-markin-flashcards-open-source-app) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →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
- Android
- Web
- 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.
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
License
This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
Author
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
- Source: 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.
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Versions
- v1.14.0 Imported from the upstream source.