How to Use the Postman Desktop Agent

Updated on:

April 6, 2026

By:

Madhav Bhandari

Use this interactive demo to learn how to use the Postman desktop agent.

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It is very easy to use the Postman desktop agent. Here’s a quick guide on how to do it in simple steps:

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Inside Postman's main dashboard, go to the left-side panel and click 'Download Desktop App'.
Following that, scroll down to the Postman Desktop Agent section and click 'Download Postman Agent'.
Find and select the specific version that is compatible with your computer. Once downloaded, install the app right away.
Head back to your main workspace afterwards, then click 'Auto-Select Agent'.
Finally, choose 'Desktop Agent' to connect it to the web app and start sending API requests from your local network.

📌 Why this matters

The desktop agent lets you test APIs running on localhost and access resources behind your corporate firewall that browser security policies normally block. While you could work around these limitations by deploying to public servers or configuring CORS headers, the agent eliminates that overhead entirely.

You can test authentication flows with internal services, validate webhook endpoints before they go live, and debug API integrations using your actual development environment rather than sanitized alternatives.

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