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

# Other APIs

> Account, billing, video, fax, SETI, and OAuth APIs.

* [Account and billing](/docs/reporting/usage-reports)
* [Video](/docs/video/get-started)
* [Fax](/docs/programmable-fax/get-started)
* [SETI](/api-reference/seti-observability/retrieve-black-box-test-results)
* [OAuth](/api-reference/oauth-discovery/authorization-server-metadata)