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

# FROST API

The FROST API exposes endpoints for storing signing keys and using them to threshold-sign user data, such as actual Bitcoin transactions. \
The API is asynchronous and non-blocking. Each request may take some time to complete, and hence the API uses request objects that enable monitoring request submission and execution status.