Billing service

Billing API

Catalyst Cloud now provides a RESTful API to access our billing service. With the billing API, it’s easy to get historical invoices and the cost for the current month. We have released an official Python client to help you consume the API, see

How can I list my quotations or invoices?

After you have installed python-distilclient and python-openstackclient, you can easily run the following command to list invoices:

~$ openstack rating invoice list --start 2017-11-01 --end 2017-12-01
    "invoices": {
        "2017-11-30": {
            "status": "open",
            "total_cost": 1883.64
    "project_id": "5fac8ecc14fc4cd6g3e59d16aae4dcb",
    "project_name": "",
    "start": "2017-11-01 00:00:00",
    "end": "2017-12-01 00:00:00"

Or getting current month quotation:

~$ openstack rating quotation list
    "end": "2017-12-05 00:00:00",
    "project_id": "94b566de52f9423fab80ceee8c0a4a23",
    "project_name": "openstack",
    "quotations": {
        "2017-12-05": {
            "total_cost": 34.82
    "start": "2017-12-01 00:00:00"


With argument --detailed, you can get the details of the invoice.

Separate Billing

As mentioned above, with our billing API the user can easily deal with their invoices and make their life easier. We are providing a small script as a reference for how to consume the billing API, see

This script provides a means to get itemised billing based on the prefix of a set of resources so that a Catalyst Cloud customer can easily on-charge their hosted customers based on that customers usage.


This script is meant as a reference for how to consume the Catalyst Cloud billing API to get a separate billing based on the latest invoice. It should be fairly simple to change the code to meet other requirements.

How to use

Preparing your local environment

Create a python virtual environment and install the libraries required by the command line tool in it.

virtualenv venv
source venv/bin/activate
pip install -r requirements.txt

Get billing information based on the prefix of customer

Source an openrc file with your credentials to access the Catalyst Cloud, as described at


If you do not source an openrc file, you will need to pass the authentication information to the command line tool when running it. See ./ help for more information.

Make sure your python virtual environment is activated (source venv/bin/activate).

Sample usage:

To retrieve the current billing information for a set of resources that have the prefix customer-wcc, the command will look like this:

./ show --prefix customer-wcc

The output will look similar to this:

| resource_name                 | rate   | quantity | unit    | cost  |
| customer-wcc-ipsec-router-fdc | 0.017  | 697.0    | Hour(s) | 11.85 |
| customer-wcc-ipsec-router-gdc | 0.017  | 697.0    | Hour(s) | 11.85 |
| customer-wcc-fdc-vpnservice   | 0.017  | 697.0    | Hour(s) | 11.85 |
| customer-wcc-gdc-vpnservice   | 0.017  | 697.0    | Hour(s) | 11.85 |
| customer-wcc-fdc              | 0.0164 | 697.0    | Hour(s) | 11.43 |
| customer-wcc                  | 0.0164 | 697.0    | Hour(s) | 11.43 |
| customer-wcc-gdc              | 0.0164 | 697.0    | Hour(s) | 11.43 |
Total cost of customer [customer-wcc] for the month of [2017-07-31] is : $81.69

Get billing information when there are no unique resource prefixes defined

The parameter prefix is used to filter the invoice to get separate billing information for different customers. If resources have been created without specific prefixes it is still possible to query the billing data for the entire project.

To view the full invoice, just issue the command without a specific prefix as shown here:

./ show --prefix ''


Why are the amounts shown by the separate billing script different from the dashboard?

GST is not included in the billing script when doing separated billing while it is included in the dashboard costs.

Why are my stopped compute instances still incurring charges?

Unless an instance has been SHELVED it will continue to incur compute charges. See Stopping a compute instance for more information.