> For the complete documentation index, see [llms.txt](https://messier.gitbook.io/catalogue-de-messier/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://messier.gitbook.io/catalogue-de-messier/messier-applications/open-hatch/explorer-platform/fees.md).

# Fees

## Registration costs:

**Creators** are not asked to pay any fees, they are able to use the Explorers platform and create their own page, plan and service details completely free.\
\
**Explorers** are charged their membership fees only, according to each creator plan they choose to subscribe to.