# Using Postman to query the Contentstack Content Delivery API Walkthrough ### About this export | Field | Value | | --- | --- | | **content_type** | lesson | | **platform** | contentstack-academy | | **source_url** | https://www.contentstack.com/academy/learning-paths/contentstack-developer-certification/contentstack-for-developers/using-postman-to-query-the-contentstack-content-delivery-api-walkthrough | | **course_slug** | contentstack-for-developers | | **lesson_slug** | using-postman-to-query-the-contentstack-content-delivery-api-walkthrough | | **learning_path_slug** | contentstack-developer-certification | | **markdown_file_url** | /academy/md/learning-paths/contentstack-developer-certification/contentstack-for-developers/using-postman-to-query-the-contentstack-content-delivery-api-walkthrough.md | | **generated_at** | 2026-05-11T07:02:35.882Z | > Lesson in **[Contentstack for Developers](https://www.contentstack.com/academy/learning-paths/contentstack-developer-certification/contentstack-for-developers)** within the **contentstack-developer-certification** learning path on Contentstack Academy. **Academy MD v3** — structured for retrieval; no quiz or assessment keys. #### Video details #### At a glance - **Title:** Dev-using Postman With The Content Delivery Api - **Duration:** 3m 24s - **Media link:** https://cdn.jwplayer.com/previews/693igszM - **Publish date (unix):** 1716254996 #### Streaming renditions - application/vnd.apple.mpegurl - audio/mp4 · AAC Audio · 113656 kbps - video/mp4 · 180p · 200p · 146207 kbps - video/mp4 · 270p · 300p · 168735 kbps - video/mp4 · 360p · 400p · 192772 kbps - video/mp4 · 406p · 450p · 206599 kbps - video/mp4 · 540p · 600p · 255637 kbps #### Timed text tracks (delivery) - **thumbnails:** `https://cdn.jwplayer.com/strips/693igszM-120.vtt` #### Video transcript A great way to explore and learn about the ContentStack APIs is using Postman. In this video, we'll take a look at using the Content Delivery API with Postman, how we can set it up, and use the Get Entries command. Let's get started. First, let's download the Postman collection from the ContentStack documentation. If you don't already have that, you can find that here under ContentStack Docs, Developers, APIs, and then Postman Collections. Over here, you'll want to download the Run in Postman collection. Click on that and just fork the collection. After you do that, you can open that locally in Postman on your local machine, or you can also run it from the browser. One of the first things we're going to want to do is set up the variables. In the top right, click on the Environment icon, and here you'll see the variables that we have set up for the Postman collection. There's a few that we need to have set for running all the queries. The first one is the base URL. If you're using the North American instance, that's going to be cdn.contentstack.io. Second thing is the content type we're going to query. In this example, we're going to use a blog post content type from the starter app. The next one is the environment, and the blog post is published to the environment of development, so that's going to work. Finally, the most important thing is to make sure API key and access token is correct. The API key is unique per stack, and the access token is unique per environment. Let's go ahead and take a look at those two values. You can go ahead and find them here under Settings and Tokens, and then under Development. At the bottom, you can see the stack API key. It ends with B9 for me, and then the delivery tokens ending with 4D, and I believe that's already set here in my Postman. Let's go ahead and take a look at that. B9 and 4D. Yes, my environment variables are set up correctly. With that said, let's go ahead and go over here to the content delivery API, entries, and then get all entries. You can also mouse over the different variables just to make sure that they're set correctly. When that's already set up, you can click the Send button, and access token only accepts a delivery token as a value. Perfect. Let's see why that's coming as an error. Here, the default collection somehow calls this delivery token, and in my environment variables, I have it set up as access token. I can do one of two things. Either I can change this value to use access token, which that's what I'm going to do, and then I can mouse over that and make sure that's correct. It will tell us a reminder if we're setting any of these values incorrectly. Let's hit the Send button again, and now we get our list of entries back. Just to double check here, all the variables. The first one, base URL, it needs to be CDN. If yours happens to start with HTTP, remove that and just have it start with CDN. The second thing is a content type, and that's blog post. The third thing is the environment. Here we have development. Finally, the API key. This you can retrieve from your settings and tokens. Then your access token, you might need to change this variable name to be access token or just confirm that it has the right token value. That's it. Thank you very much. #### Key takeaways - Connect **Using Postman to query the Contentstack Content Delivery API Walkthrough** back to your stack configuration before moving to the next module. - Capture one concrete artifact (screenshot, Postman call, or code snippet) that proves the step works in your environment. - Re-read the delivery versus management boundary for anything you changed in the entry model. ## Supplement for indexing ### Content summary Using Postman to query the Contentstack Content Delivery API Walkthrough. Using Postman to query the Contentstack Content Delivery API Walkthrough in Contentstack for Developers (contentstack-for-developers). ### Retrieval tags - Using - Postman - query - the - Contentstack - Content - contentstack-for-developers - lesson 10 - Using Postman to query the Contentstack Content Delivery API Walkthrough - contentstack-for-developers lesson ### Indexing notes Index this lesson as a primary chunk tagged with lesson_id "10" and topics: [Using, Postman, query, the, Contentstack, Content]. Parent course slug: contentstack-for-developers. Use asset_references URLs as thumbnail hints in search results when present. Never surface LMS quiz content or assessment answers from this file. ### Asset references | Label | URL | | --- | --- | | Video thumbnail: Using Postman to query the Contentstack Content Delivery API Walkthrough | `https://cdn.jwplayer.com/v2/media/693igszM/poster.jpg?width=720` | ### External links | Label | URL | | --- | --- | | Contentstack Academy home | `https://www.contentstack.com/academy/` | | Training instance setup | `https://www.contentstack.com/academy/training-instance` | | Academy playground (GitHub) | `https://github.com/contentstack/contentstack-academy-playground` | | Contentstack documentation | `https://www.contentstack.com/docs/` |