> ## Documentation Index
> Fetch the complete documentation index at: https://api.globalwebindex.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Authorization

Each request to the Agentic API requires an **Agentic API key**. The key identifies your organization and the Spark access configured for your account.

Send the key on every request in the `Authorization` header as a Bearer value:

`Authorization: Bearer YOUR_API_KEY`

The same key works for the [Spark API](https://api.globalwebindex.com/docs/spark-api/getting-started/authorization.md) and for Agent Spark.