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

# Licensing

- [Overview](https://docs.viesus.com/licensing/overview.md): VIESUS licensing models — on-premise GUID and Activation Key, plus credit-based Cloud API. How each works and how to choose.
- [GUID](https://docs.viesus.com/licensing/guid.md): GUID-based licensing for VIESUS on-premise products — machine-independent licensing, key properties, and how to pass the GUID at runtime.
- [Activation Key](https://docs.viesus.com/licensing/activation-key.md): Activation Key (Software Key) licensing for VIESUS — hardware-bound on-premise licensing, request file generation, and step-by-step activation.


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