---
title: "How does the Grok API stream partial tool-call arguments?"  
description: "How does the Grok API stream partial tool-call arguments?"  
author: "Dmitry Belov"  
published: 2026-10-26  
updated: 2026-10-26  
canonical: https://www.mindstick.com/forum/162945/how-does-the-grok-api-stream-partial-tool-call-arguments  
category: "Grok API"  
tags: ["Grok API", "streaming", "Tool calling"]  
reading_time: 1 minute  

---

# How does the Grok API stream partial tool-call arguments?

I’m building a client around Grok API streaming and want to know what to expect when the model starts a tool call. Are **partial tool-call arguments** sent as incremental chunks, and if so, how should a client tell when the arguments are complete and safe to parse?

If you’ve wired this into a live interface, I’d be interested in how you handle incomplete JSON or a stream that ends before the tool call is finished.


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Original Source: https://www.mindstick.com/forum/162945/how-does-the-grok-api-stream-partial-tool-call-arguments

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