> For the complete documentation index, see [llms.txt](https://docs.hoppersgame.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hoppersgame.io/about/hopper-nfts/naming-service.md).

# Naming Service

Each Hopper has a unique name. A name you can change at the cost of some $FLY.

Name Change = **100** $FLY

Each name will be limited to 25 alphanumeric characters.