> ## Documentation Index > Fetch the complete documentation index at: https://docs.argyle.com/llms.txt > Use this file to discover all available pages before exploring further. # Postman The quickest way to test the Argyle API. Copy our public Postman collection to get started testing each endpoint: ## How to copy the collection 1. Click the button above. 2. Create or retrieve your Argyle API keys [from Console](https://console.argyle.com/api-keys). 3. Replace the username field on Postman's authorization page with your `Sandbox API Key ID`. 4. Replace the password field on Postman's authorization page with your `Sandbox API key SECRET`. Add your API keys on Postman's Authorization tab. ## Setting environment variables We recommend creating a Sandbox and Production environment via Postman's sidebar, where you can store `{{variable values}}` such as your [API keys](/api-guide/overview#authentication) or [base URLs](/api-guide/overview#environments). This lets you quickly switch between Sandbox and Production when making API calls using the dropdown in the upper right. Save environment variables in Postman to quickly switch between using the Sandbox and Production API's. Argyle provides two environments: | Environment | Purpose | Base URL | | ----------- | ---------------- | ----------------------------------- | | Sandbox | Testing | `https://api-sandbox.argyle.com/v2` | | Production | Real connections | `https://api.argyle.com/v2` | ## Documentation in Postman Clicking on the **Documentation** icon in the upper-right corner will display additional details for each endpoint. Image showing how to open Documentation within Postman for the Argyle API collection. [API Reference](/api-reference/users#object)