> For the complete documentation index, see [llms.txt](https://keen.gitbook.io/api-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://keen.gitbook.io/api-docs/getting-started/quickstart.md).

# Authentication

Include X-Api-Key = {your Keen API key} in your API requests.

Find the API Key on your Keen account under the "Integrations" section.