# Building in the sandbox — LEKKIN help

> A free copy of your club full of test data, where nothing reaches a real person. Build and test there before you go live.

[Help](/help/) / [Developers](/help/developers/)

# Building in the sandbox

DevelopersClub admins, and anyone with the Developer role3 min read

The sandbox is where you build. It’s a copy of your club with test data, test keys and a caught-email inbox, and it doesn’t need the developer add-on.

## Getting there

Choose **Sandbox** in the menu. It switches you over and opens the **Sandbox** page; a banner says you’re in the sandbox, and the menu item now reads **Exit Sandbox**. The **Sandbox** page shows the emails your calls caused, and lets you reset it.

The first time, LEKKIN builds your sandbox club: your club’s name and colours, three teams with squads, a league of fixtures with some results, and a pitch with opening hours and bookings. Everybody in it is made up.

## What’s different

-   **Keys are test keys.** Integrations, keys and webhooks made here exist only here.
-   **Nothing is sent.** Emails your calls would cause, like an invitation to a player you added, are kept on the **Sandbox** page instead, newest first.
-   **It’s yours to break.** Add players, book the pitch, record results. None of it touches your real club.

## Where your data is

The sandbox has its own copy of the API and its own data. Whatever your integration creates there with a test key, a player for example, is kept in the sandbox and never reaches your real club. To see it, ask the API for it, as your integration would: list the team’s squad and the player you added is in it.

## Trying a call

Open **API docs** and press **Authenticate**, the button in the bottom corner. It fills in a test key for your sandbox club, good for an hour, so you can press **Try it** on any call; the response is shown underneath. Your club’s id is already filled in. (You can still paste a test key of your own instead.)

## Starting again

On the **Sandbox** page, press **Reset the sandbox**. Your sandbox club goes back to how it began, with the same id, so your code keeps working. Your sandbox integrations and keys are kept.

## When it works

Make the same integration on **Live** and issue a live key. Live keys need the developer platform add-on: see [Going live](/help/developers/going-live/).

Still stuck? [Tell us what you were trying to do](/contact/).