400 - Bad Request 
{
    "error": "Invalid API key"
}

400 - Bad Request 
{
    "error": "Body is invalid JSON"
}

400 - Bad Request 
{
    "error": "\"some-parameter-key\" is not allowed"
}

400 - Bad Request 
{
    "error": "'/v1/v../some-path' endpoint not found"
}

403 - Forbidden 
{
    "error": "Access denied"
}

500 - Internal Server Error 
{
    "error": "Internal server error"
}