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

# Authentication

Authentication is necessary for all API request made on certhis Dynamic NFT API

Every call must include **'api\_key'** and  **'api\_pass'** in the request header