Using Smart Home API

Hi,

I'm working on a python wrapper of your smart home API and had a question regarding the login route.
I'm using the example request provided in the documentation with my own username and password (used in the Rently Smart Home app), but I am always getting a 401 unauthorized. Do you have an idea where the issue might be? Let me know if you need more info

Request:
curl --location --request POST 'https://app2.keyless.rocks/api/agents'
--header 'Accept: Login-Success'
--header 'Content-Type: application/json'
--header 'Cookie: AWSALB=Het0/pG+DSE/hA3qxHuLlBHN8XfjSJqjGCcQaTqTpQ8w8amNJhKJ9JXpLnubYFx3KrQXR/1POdoI1NI121ogr6LFI+mg95EeyPpS0ylv0VsD88CszbFt9/Df4NwZ; AWSALBCORS=Het0/pG+DSE/hA3qxHuLlBHN8XfjSJqjGCcQaTqTpQ8w8amNJhKJ9JXpLnubYFx3KrQXR/1POdoI1NI121ogr6LFI+mg95EeyPpS0ylv0VsD88CszbFt9/Df4NwZ; request_method=POST'
--data-raw '{
"username": "**",
"password": "**",
"grant_type": "password"
}'

Response:
{
"success": false,
"message": "Username or password is incorrect"
}