https://alirasooli.ir/tags/langsmith/ Recent content in Langsmith on My Personal Blog Hugo en-US Tue, 10 Feb 2026 12:53:10 +0000 https://alirasooli.ir/posts/using-agentic-ai-with-pstnl-tracking/ Tue, 10 Feb 2026 12:53:10 +0000 https://alirasooli.ir/posts/using-agentic-ai-with-pstnl-tracking/ <p>I built a simple <strong>AI agent</strong> that calls the PostNL API to get package tracking info.<br> Here is the <strong>LangFlow</strong> diagram:</p> <p> <figure class="image-figure not-prose my-8" data-lightbox-enabled="true" data-gallery-type="auto"> <div class="image-container"> <img src="https://alirasooli.ir/posts/using-agentic-ai-with-pstnl-tracking/langflow.png" alt="Agent Flow Diagram" width="1778" height="1022" loading="lazy" decoding="async" data-gallery-src="https://alirasooli.ir/posts/using-agentic-ai-with-pstnl-tracking/langflow.png" data-gallery-alt="Agent Flow Diagram" data-gallery-title="" /></div> </figure></p> <p>I live in the Netherlands and use PostNL a lot.</p> <p>When there’s a problem with a package, the process is too complicated. You have to call customer support, wait a long time, read help pages, and check tracking links. It’s too much work for simple questions.</p>