> For the complete documentation index, see [llms.txt](https://zumo.fusion.ac/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zumo.fusion.ac/documentation/readme.md).

# Documentation

How-to guides for Zumo developers. Use these for workflows; use the [API Reference](https://gitbook-templates.gitbook.io/api-reference/) for exact HTTP and Socket.IO contracts.

| Start here                                                 | Then                                                              |
| ---------------------------------------------------------- | ----------------------------------------------------------------- |
| [Quickstart](/documentation/getting-started/quickstart.md) | [Getting a key](/documentation/getting-started/getting-a-key.md)  |
| [Concepts](/documentation/core-concepts/concepts.md)       | [Connecting](/documentation/guides/connecting.md)                 |
| [Lobby feed](/documentation/guides/lobby-feed.md)          | [Recording a replay](/documentation/guides/recording-a-replay.md) |

{% hint style="info" %}
You authenticate with a Zumo consumer key (`zk_*`). Traffic goes to **Zed** at `https://zed.fusion.ac`. Request a key in the [Zumo Discord](https://discord.gg/t4HAw5wvDf).
{% endhint %}