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

# API Key

The [Organisation API](/docs/api-reference/organisation-api.md) uses API keys to authenticate requests, every request should include the API key in the `x-api-key` header.

Manage your API keys in your [organisation settings](https://admin.glu.io/user/select_organisation?route=admin_integrations_api_keys). An API key can access a single organisations data.

All requests using an API key should use <https://api.glu.io>