# Postman
source: https://developer.mastercard.com/open-finance-europe/documentation/unlicensed/insights/testing/postman/index.md

Postman is a great tool for exploring and testing RESTful APIs without clients having to communicate with it.

A [Postman collection](https://www.getpostman.com/collection) and an [Environment](https://learning.getpostman.com/docs/postman/environments_and_globals/manage_environments/) is available so you can explore details of our APIs with minimum setup.

#### Running the collection {#running-the-collection}

Follow these steps to set up and run the Postman collection:

1. Start by pressing the "run in Postman". It will guide you to create a postman account and let you use the Postman collection.

Run in Postman

2. The collection should be imported into Postman now. You can verify this by clicking on `Collections` in Postman and checking whether you have a collection named `Mastercard Open Finance EU`. If it is not there, try importing it again while running Postman beforehand. Note that sometimes it might not be imported if Postman was closed before.

3. An environment called `eu Mastercard Open Finance EU Insights` is also imported. You can switch to it by clicking on the drop-down in the top left of the Postman window and selecting the environment with the aforementioned name.
   ![Environment Drop-down](https://static.developer.mastercard.com/content/open-finance-europe/uploads/unlicensed/environment_dropdown.png)

4. Update the environment with your client id and client secret (which you can get at the [Developer Portal](https://devportal.openbanking.mastercard.com/#/apps)). To do that, open the environment quick look (the button with the eye icon next to environment drop-down). Here you should see three variables, `client_id`, `client_secret` and `client_redirect_uri`. While hovering over their `Current Value`, click on the edit button and update those values to your actual API Keys.

![Environment Expanded](https://static.developer.mastercard.com/content/open-finance-europe/uploads/unlicensed/insights_environment_expanded.png)

5. Make the first request to `Create Insights Request`. The response will contain a `jobId` that you need to record and a `connectUrl` which you have to open in a browser. This will start the Connect Flow. When complete, you will be redirected to your configured redirect url.

6. You can use the `jobId` in the next set of API calls