> For the complete documentation index, see [llms.txt](https://docs.nxtfi.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nxtfi.org/playground.md). # Playground Playground is a Genesis network utility that allows users to interact with the blockchain. Users can review the content of each block, insert new blocks, and generate private and public keys. Total blockchain power in a user-friendly interface. Here, you can test your Smart Contract logic with a quick and powerful tool. Check the [authentication](/authentication.md) section for permissions and the [Smart Contract](/smart-contracts.md) section for usage information. {% embed url="" %}