# Using the Postman Collection
source: https://developer.mastercard.com/open-finance-au/documentation/integration-and-testing/postman-collection/index.md

The Mastercard Open Finance Postman collection provides a quick and convenient way to explore and test the Open Finance APIs. You can use it to try out API calls, inspect responses, and generate code snippets for your application.

## Prerequisites {#prerequisites}

Before using the Postman collection, you should:

1. [Generate your credentials](https://developer.mastercard.com/open-finance-au/documentation/quick-start-guide/index.md#create-a-sandbox-project) (Partner ID, Partner Secret, and App Key)
2. [Create a test customer](https://developer.mastercard.com/open-finance-au/documentation/quick-start-guide/index.md#welcome-your-first-customer)

## Getting Started {#getting-started}

1. Click: [![](https://static.developer.mastercard.com/content/open-finance-au/uploads/postman-button.svg)](https://god.gw.postman.com/run-collection/30686484-0c32dea8-6e35-4e47-8c6d-cc9c0734c6ad?action=collection%2Ffork&source=rip_markdown&collection-url=entityId%3D30686484-0c32dea8-6e35-4e47-8c6d-cc9c0734c6ad%26entityType%3Dcollection%26workspaceId%3D0d6593a8-1921-4fe4-a73c-687c945c5c02#?env%5B%F0%9F%87%A6%F0%9F%87%BA%20Mastercard%20Open%20Banking%20Environment%20AU%5D=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)
2. Select the *Sandbox* environment (top right) and update `partnerId`, `partnerSecret`, `appKey`, `customerId` and `consentReceiptId` variables
3. Click *Send* on individual requests, or *Run collection*
4. Explore the *Pre-request Script* and *Tests* tabs, and update the collection as you wish
5. Generate [code snippets](https://learning.postman.com/docs/sending-requests/generate-code-snippets/) you can use into your application

![Postman workspace](https://static.developer.mastercard.com/content/open-finance-au/uploads/postman-request-aus.png)

## See Also {#see-also}

* [Quick Start Guide](https://developer.mastercard.com/open-finance-au/documentation/quick-start-guide/index.md)
* [Generating an API Client Library](https://developer.mastercard.com/open-finance-au/documentation/integration-and-testing/generating-an-api-client-library/index.md)
* [Test Profiles](https://developer.mastercard.com/open-finance-au/documentation/integration-and-testing/test-the-apis/index.md)
* [API Reference](https://developer.mastercard.com/open-finance-au/documentation/api-reference/index.md)