> For the complete documentation index, see [llms.txt](https://docs.scaleflex.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.scaleflex.com/developers-headless/headless-dam/dam-apis/api-authentication.md).
# API Authentication
To use the [DAM API](https://developers.scaleflex.com), you will need to create an API key from *Settings > Project > Access > API keys*. This API key must be passed as **X-Filerobot-Key** header in all API requests.
Each API key is associated with a set of permissions that define the actions it is authorized to perform within the system.
Flexible permissions can be associated to each key
See the developer's collection on Postman: [Scaleflex DAM Authentication](https://developers.scaleflex.com/#api-authenticatio)
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