# Joocy

> Joocy (joo.cy) is an interactive presentation tool. A presenter brings a deck (a PDF from PowerPoint, Keynote or Google Slides, pictures, video or HTML) or makes one, and the audience joins on their phones with a five character code: no app, no sign up. Polls, quizzes, word clouds and Q&A answers land on the slides live.

- Every slide has two sides: what the big screen shows, and what every phone shows (a question, a picture, buttons, the slide itself, or "look up").
- Twelve kinds of question: polls, quizzes with a leaderboard, stickers, ratings, word clouds, open questions, their name, numbers, Q&A with voting, photos, voice notes and sign ups. Plus custom phone screens in HTML.
- Rooms of 2 to 2,000 people. Phones reconnect on their own and fall back to plain HTTP on venue wifi that blocks WebSockets.
- Bad words are filtered and wait for the presenter's OK; photos and voice notes wait for approval.
- AI agents (Claude, Codex, Cursor, Gemini CLI and any MCP client) can make and edit decks, run a session and read the results, through an MCP server at https://joo.cy/mcp, an API and a skill file. Every change is versioned.
- Joocy is in early access: new presenters join by invite from https://joo.cy/.

## Start here

- [Joocy](https://joo.cy/): what it is and how it works, with answers to common questions
- [What is an interactive presentation?](https://joo.cy/interactive-presentations/): the idea, how it works, the twelve kinds of question and when to use each
- [How Joocy compares](https://joo.cy/compare/): Joocy, Mentimeter, Slido and AhaSlides side by side, from each company's own pages, with the date checked
- [Joocy vs Mentimeter](https://joo.cy/compare/mentimeter/): joining, free plans, imports, moderation, AI agents, coded slides and prices, and where Mentimeter is the better choice
- [Joocy vs Slido](https://joo.cy/compare/slido/): the same facts for Slido, and where Slido is the better choice
- [Joocy vs AhaSlides](https://joo.cy/compare/ahaslides/): the same facts for AhaSlides, and where AhaSlides is the better choice

## Guides

- [Presenting](https://joo.cy/docs/presenting/): How to run a live Joocy session: the stage, the console, your phone as a remote, the join code, keeping the room safe, and what the room said afterwards. ([Markdown](https://joo.cy/docs/PRESENTING.md))
- [Your own AI](https://joo.cy/docs/agents/): Connect Claude, Codex, Cursor, Gemini CLI or any MCP agent to Joocy: make and edit interactive decks, add polls and quizzes, run a session, read the results. ([Markdown](https://joo.cy/docs/AGENTS.md))
- [Coded decks](https://joo.cy/docs/coded-decks/): Bring or write a presentation in HTML. Slides and phone screens can use three.js, WebGL, GSAP and more, follow your arrow keys and draw the room's answers live. ([Markdown](https://joo.cy/docs/CODED-DECKS.md))
- [The deck format](https://joo.cy/docs/deck-format/): One presentation is one JSON document that the editor, the API and your AI all read and write: slides, both sides of every slide, questions, results and settings. ([Markdown](https://joo.cy/docs/DECK-FORMAT.md))
- [Offline mode](https://joo.cy/docs/offline/): No internet at the venue? Run the room on your own computer. Phones join over the room's Wi-Fi, and what the room says goes to your account once you are online. ([Markdown](https://joo.cy/docs/OFFLINE.md))

## For AI agents

- [The guide your AI reads](https://joo.cy/api/v1/guide): how to build and run decks through the API and the MCP server
- [Skill file](https://joo.cy/api/v1/skill): the same, as a skill for Claude Code and other agents
- [Every layout and question type](https://joo.cy/api/v1/catalog): JSON, generated by the server

## Optional

- [Setting it up](https://joo.cy/docs/setup/): Put your own copy of Joocy online on Cloudflare: a trial on your laptop, the first deploy, your own domain, email and what it costs.
- [How it works](https://joo.cy/docs/architecture/): One Cloudflare Worker and four kinds of storage: how the parts fit together, and how to add a feature.