> For the complete documentation index, see [llms.txt](https://docs.coherent.global/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coherent.global/spark-apis/authorization-bearer-token.md).

# Authorization - Bearer token

Each Spark user has access to a temporary bearer token, a form of credential that can be used to access the Spark APIs.

## Access the bearer token

1. From the [Navigation menu](/navigation/navigation-menu.md#user-menu), select the **Bearer token**.
2. In the resulting modal, the bearer token can be copied and used from a platform that supports OAuth 2.0 bearer tokens.

## Use a bearer token

Most APIs on Spark will accept a bearer token. Include it in the request header of the API call under the `Authorization` key.

Not every API supports [Authorization - API keys](/spark-apis/authorization-api-keys.md), so sometimes bearer tokens are required. Bearer tokens can be systematically generated through the use of [Client credentials](/identity-and-access-management/client-credentials.md). This is the recommended approach for machine-to-machine integration.