Documentation
Everything you need to know about Anneal, FSRS spaced repetition, and connecting your AI assistants.
How it works
Four simple steps to effortless retention, with zero friction and instant account setup.
Create your account or explore the demo
Anneal secures your habits, study retention, and flashcards across all devices with instant cloud sync. You can also explore the complete interactive demo at /demo with zero signup required.
Create folders and textured decks
Folders organize your subjects; decks hold your flashcards. Customize with hand-drawn doodles, textures, and swatches — or tap “surprise me”.
Add cards or ask your AI assistant
Add prompt/answer cards manually in the editor, or use our remote MCP server so Claude, ChatGPT, or Cursor generates them while you read.
Review daily with FSRS spaced repetition
Review shows one prompt at a time. Rate how easily you recalled it (Again, Hard, Good, Easy) — the algorithm predicts when you would otherwise forget it and schedules it right on time.
AI Connectors (MCP)
Connect Claude, ChatGPT, Gemini, or Cursor to Anneal using our remote Model Context Protocol server.
Connect your AI Assistant
One remote MCP endpoint. Let your favourite AI manage flashcards & habit logs.
Claude.ai Connector
In claude.ai, open Settings → Connectors and choose “Add custom connector”. Name it Anneal, paste the URL below, and connect.
https://anneal-os.vercel.app/api/mcpWorks seamlessly on claude.ai web and mobile browser.
Ask your AI to create cards or track progress
Try saying one of these directly in your chat:
- “Turn my notes on system design into an Anneal deck.”
- “Using the shared attachment, create 10 flashcards in Anneal.”
- “Log habit completed: 45 minutes deep study.”
- “What cards are due for review in my Anneal library today?”
What's here
The features below are live and working today. Unified habits and task logging are currently in active development.
Four Card Layouts
View your decks and cards in four ways: fanned, structured grid, stacked, or carousel. Your preference is remembered automatically.
FSRS Memory Algorithm
Powered by the modern Free Spaced Repetition Scheduler, adapting review intervals to your personal memory decay curve.
Unified Streak Calendar
Track your consistency across study sessions and daily rituals with month and year calendar visualizations.
Cloud Sync & Data Portability
Your event log is synced securely to your private account across all devices. Export your entire library, review history, and scheduler state as standard JSON anytime.
Synthesized Sound & Dual Themes
First-class light and dark themes with real-time web-synthesized audio effects that can be muted anytime.
Remote MCP AI Server
A standardized Model Context Protocol server allowing external AI agents to read and manage your study queue securely.
FAQs
Clear answers to common questions about memory, privacy, and roadmap.
Contact
Questions, bug reports, or feature ideas? We read every single message.
annealapp@gmail.com