Accessing Cost and Usage Reports

Cost and usage reports are comma-separated value (CSV) files that are generated daily and stored in an Object Storage bucket. This topic describes how to access these reports.

Required IAM Policy

To use Oracle Cloud Infrastructure, you must be granted security access in a policy  by an administrator. This access is required whether you're using the Console or the REST API with an SDK, CLI, or other tool. If you get a message that you don’t have permission or are unauthorized, verify with your administrator what type of access you have and which compartment  to work in.

If you're new to policies, see Getting Started with Policies and Common Policies.

To use cost and usage reports, the following policy statement is required:

define tenancy usage-report as ocid1.tenancy.oc1..aaaaaaaaned4fkpkisbwjlr56u7cj63lf3wffbilvqknstgtvzub7vhqkggq
endorse group <group> to read objects in tenancy usage-report

Authentication and Authorization

Each service in Oracle Cloud Infrastructure integrates with IAM for authentication and authorization, for all interfaces (the Console, SDK or CLI, and REST API).

An administrator in your organization needs to set up groups , compartments , and policies  that control which users can access which services, which resources, and the type of access. For example, the policies control who can create new users, create and manage the cloud network, launch instances, create buckets, download objects, etc. For more information, see Getting Started with Policies. For specific details about writing policies for each of the different services, see Policy Reference.

If you’re a regular user (not an administrator) who needs to use the Oracle Cloud Infrastructure resources that your company owns, contact your administrator to set up a user ID for you. The administrator can confirm which compartment or compartments you should be using.

Using the Console

To download a cost or usage report:

  1. Open the navigation menu and click Billing & Cost Management. Under Cost Management, click Cost and Usage Reports.
  2. Click the report you want to download from the list, and follow your browser's instructions for downloading.

Using the API

For information about using the API and signing requests, see REST APIs and Security Credentials. For information about SDKs, see Software Development Kits and Command Line Interface.

To download a cost or usage report, use the Object Storage APIs. The reports are stored in the tenancy's home region. The Object Storage namespace used for the reports is bling; the bucket name is the tenancy OCID.

The following example shows how to download a cost report, usage report (or both) using a Python script:

import oci
import os
# This script downloads all of the cost, usage, (or both) reports for a tenancy (specified in the config file).
# Pre-requisites: Create an IAM policy to endorse users in your tenancy to read cost reports from the OCI tenancy.
# Example policy:
# define tenancy reporting as ocid1.tenancy.oc1..aaaaaaaaned4fkpkisbwjlr56u7cj63lf3wffbilvqknstgtvzub7vhqkggq
# endorse group <group_name> to read objects in tenancy reporting
# Note - The only value you need to change is the <group_name> with your own value. Do not change the OCID in the first statement.
reporting_namespace = 'bling'
# Download all usage and cost files. You can comment out based on the specific need:
prefix_file = ""                     #  For cost and usage files
# prefix_file = "reports/cost-csv"   #  For cost
# prefix_file = "reports/usage-csv"  #  For usage
# Update these values
destintation_path = 'downloaded_reports'
# Make a directory to receive reports
if not os.path.exists(destintation_path):
# Get the list of reports
config = oci.config.from_file(oci.config.DEFAULT_LOCATION, oci.config.DEFAULT_PROFILE)
reporting_bucket = config['tenancy']
object_storage = oci.object_storage.ObjectStorageClient(config)
report_bucket_objects = oci.pagination.list_call_get_all_results(object_storage.list_objects, reporting_namespace, reporting_bucket, prefix=prefix_file)                          
for o in
    print('Found file ' +
    object_details = object_storage.get_object(reporting_namespace, reporting_bucket,
    filename ='/', 1)[-1]
    with open(destintation_path + '/' + filename, 'wb') as f:
        for chunk in * 1024, decode_content=False):
    print('----> File ' + + ' Downloaded')