> ## Documentation Index > Fetch the complete documentation index at: https://docs.cognite.com/llms.txt > Use this file to discover all available pages before exploring further. # Development quickstart > Get your first API response in 5 minutes using Postman. Try with Open Industrial Data (no admin setup) or connect to your CDF project. We recommend downloading, installing, and using **[Postman](https://www.getpostman.com)** to test API requests and verify responses. No admin setup required. Sign up at [Cognite Hub](https://hub.cognite.com) and get credentials from [OpenID Connect on Open Industrial Data](https://hub.cognite.com/open-industrial-data-211/openid-connect-on-open-industrial-data-993). Use cluster `api`, project `publicdatacdm`. 1. Download the [Cognite OpenAPI specification](/api-reference/concepts/20230101/api-description). 2. In Postman, select **Import** and drag the file to the import modal. 3. In **View Import Settings**: set **Folder organization** to **Tags**, turn **off** **Enable optional parameters**, turn **on** **Always inherit authentication**. 4. Select **Continue** > **Import**. 1. Navigate to **Environments** on the left sidebar. Click **+ Create new Environment** and give it a name. 2. Add these variables using values from the [Open Industrial Data credentials](https://hub.cognite.com/open-industrial-data-211/openid-connect-on-open-industrial-data-993): * **tenant-id**: From the Hub article * **token**: Leave blank. OAuth 2.0 will populate it automatically. * **baseUrl**: `https://api.cognitedata.com/api/v1/projects/publicdatacdm` * **project**: `publicdatacdm` 3. Click **Save** and select your environment in the dropdown in the top right corner. 1. Navigate to the **Authorization** tab in the collection overview. 2. Set **Type** to **OAuth 2.0** and **Add authorization data to** to **Request Headers**. 3. Select **Configure New Token** and specify: * **Grant Type**: **Implicit** * **Callback URL**: `https://postman.cogniteapp.com/loggedin` * **Auth URL**: `https://login.microsoftonline.com/{{tenant-id}}/oauth2/v2.0/authorize` * **Client ID**: Use the Postman Client ID from the [Open Industrial Data credentials](https://hub.cognite.com/open-industrial-data-211/openid-connect-on-open-industrial-data-993) (OID-Api app) * **Scope**: `https://api.cognitedata.com/user_impersonation` or `https://api.cognitedata.com/DATA.VIEW` * **Client Authentication**: **Send as Basic Auth header** 4. Select **Get New Access Token** > **Proceed** > **Use Token**. 1. Make a test API request to check that your integration is working correctly: * Click the **Cognite API** collection in the left-hand menu, and select **Assets** > **List assets**. List assets * Click **Send**. Cognite Data Fusion returns a list of all [asset objects](/api-reference/concepts/20230101/assets) in response to your API request. For the [Open Industrial Data Project](https://www.youtube.com/watch?v=g4DAAo55IS8) the JSON results look similar to this: ```json wrap theme={"languages":{"custom":["/_languages/kuiper.json","../_languages/kuiper.json"]}} { "nextCursor": "8ZiApWzGe5RnTAE1N5SABLDNv7GKkUGiVUyUjzNsDvM", "items": [ { "name": "23-TE-96116-04", "parentId": 3117826349444493, "description": "VRD - PH 1STSTGGEAR THRUST BRG OUT", "metadata": { "ELC_STATUS_ID": "1211", "RES_ID": "525283", "SOURCE_DB": "workmate", "SOURCE_TABLE": "wmate_dba.wmt_tag", "WMT_AREA_ID": "1600", "WMT_CATEGORY_ID": "1116", "WMT_CONTRACTOR_ID": "1686", "WMT_FUNC_CODE_ID": "4564", "WMT_LOCATION_ID": "1004", "WMT_PO_ID": "8309", "WMT_SAFETYCRITICALELEMENT_ID": "1060", "WMT_SYSTEM_ID": "4440", "WMT_TAG_CREATED_DATE": "2009-06-26 15:36:37", "WMT_TAG_CRITICALLINE": "N", "WMT_TAG_DESC": "VRD - PH 1STSTGGEAR THRUST BRG OUT", "WMT_TAG_GLOBALID": "1000000000681024", "WMT_TAG_HISTORYREQUIRED": "Y", "WMT_TAG_ID": "346434", "WMT_TAG_ID_ANCESTOR": "345637", "WMT_TAG_ISACTIVE": "1", "WMT_TAG_ISOWNEDBYPROJECT": "0", "WMT_TAG_LOOP": "96116", "WMT_TAG_MAINID": "681760", "WMT_TAG_NAME": "23-TE-96116-04", "WMT_TAG_UPDATED_BY": "8137", "WMT_TAG_UPDATED_DATE": "2014-07-11 09:25:15" }, "id": 702630644612, "createdTime": 0, "lastUpdatedTime": 0, "rootId": 6687602007296940 }, ... ``` Once you have successfully made an API request, you're ready to begin interacting with the Cognite Data Fusion API through the Software Development Kits (SDKs). We provide official Software Development Kits (SDKs) for [Python](/dev/sdks/python) and [JavaScript](/dev/sdks/js) with libraries that interact with the Cognite Data Fusion API. ### The Python Software Development Kit (SDK) The Cognite Python SDK requires Python 3.5+ and provides access to the Cognite Data Fusion API from applications written in the Python language. See the [Cognite Python SDK Documentation](/dev/sdks/python) for more details. To download and install Python, visit [Python.org](https://python.org). To install the Cognite Python library: ```sh theme={"languages":{"custom":["/_languages/kuiper.json","../_languages/kuiper.json"]}} pip install cognite-sdk ``` ### The JavaScript Software Development Kit (SDK) The JavaScript SDK provides access to the Cognite Data Fusion API from applications written in client-side or server-side JavaScript. The library supports authentication through API keys (for server-side applications) and bearer tokens (for web applications). See the [Cognite JavaScript documentation](/dev/sdks/js) for more details. Install the Cognite JavaScript library: ```sh theme={"languages":{"custom":["/_languages/kuiper.json","../_languages/kuiper.json"]}} npm install @cognite/sdk --save ``` To use Postman with your own CDF project, you need Entra ID tenant administrator access. Follow the [Set up Postman](/dev/guides/postman) guide to: 1. Register the Cognite API app in Entra ID 2. Import the Cognite OpenAPI specification 3. Set up environment variables (tenant-id, baseUrl, project) 4. Configure OAuth 2.0 (Implicit or Authorization Code with PKCE) When you have completed the Postman setup, return here to send your first API request. 1. In Postman, click the **Cognite API** collection in the left-hand menu, and select **Assets** > **List assets**. 2. Click **Send**. Cognite Data Fusion returns a list of [asset objects](/api-reference/concepts/20230101/assets) in response. You're ready to interact with the API through the SDKs. We provide official SDKs for [Python](/dev/sdks/python) and [JavaScript](/dev/sdks/js). **Python:** ```sh theme={"languages":{"custom":["/_languages/kuiper.json","../_languages/kuiper.json"]}} pip install cognite-sdk ``` **JavaScript:** ```sh theme={"languages":{"custom":["/_languages/kuiper.json","../_languages/kuiper.json"]}} npm install @cognite/sdk --save ``` ## Next steps * [Quickstart tutorial with Python SDK](/dev/sdks/python) * [Quickstart tutorial with JavaScript SDK](/dev/sdks/js)