> For the complete documentation index, see [llms.txt](https://docs.developers.upland.me/upland-developers/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.developers.upland.me/upland-developers/playing-the-sandbox.md).

# PLAYING THE SANDBOX

- [Get Started](https://docs.developers.upland.me/upland-developers/playing-the-sandbox/get-started.md)
- [Sandbox - Upland Sign Up](https://docs.developers.upland.me/upland-developers/playing-the-sandbox/sandbox-upland-sign-up.md): Access the Sandbox using the provided credentials
- [Buying Upx](https://docs.developers.upland.me/upland-developers/playing-the-sandbox/buying-upx.md)