Get a list of all sub-accounts under a main WhiteBIT account via the V4 API.
Documentation Index
Fetch the complete documentation index at: https://docs.whitebit.com/llms.txt
Use this file to discover all available pages before exploring further.
The public WhiteBIT API key.
Base64-encoded JSON request body.
HMAC-SHA512 signature of the payload, hex-encoded. Computed as hex(HMAC-SHA512(payload, api_secret)).