# Set custom fields **PATCH /v1/client/auth/custom-fields** This endpoint is used to set custom fields for the user. The custom fields are used to store additional information about the user. Only fields that have not previously been set can be set. ## Servers - https://api.bitlabs.ai: https://api.bitlabs.ai () ## Authentication methods - Header bearer token ## Parameters ### Body: application/json (object) - **custom_fields** (array[object]) ## Responses ### 200 OK #### Body: application/json (object) - **data** (object) ### 406 VPN detected #### Body: application/json (object) - **data** (object) [Powered by Bump.sh](https://bump.sh)