> For the complete documentation index, see [llms.txt](https://docs.layerlens.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.layerlens.ai/11.-admin/manage-ecu.md).

# Manage ECU

Guide — buy and manage ECU credits.

**Settings → Billing**. Buy ECU one-time or set auto-top-up. Watch consumption per user/model in the Consumption tab.

## See also

* [ECU credits and billing](/11.-admin/ecu-credits-billing.md)
* [Concept: ECU credits](/11.-admin/concepts-ecu-credits.md)