> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apiyi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# New Docs Section: Grok API Calls

> The docs center adds a new Grok API Calls section: model overview and pricing, chat and reasoning, web and X search, code execution and MCP, and the multi-agent model — 5 bilingual pages, all conclusions verified hands-on across all 6 Grok models.

**2026/7/13 10:49 (UTC+8)** · Docs Update · xAI

📚 **New docs section "Grok API Calls" — 5 hands-on-verified bilingual pages now live**

We ran a full hands-on test of all 6 Grok models (`grok-4.5` / `grok-4.3` / both `grok-4.20` variants / `grok-build-0.1` / multi-agent) on APIYI — 56 request logs, every capability boundary verified — and turned the results into documentation under "Basic API → Grok API Calls":

* [Grok Overview](/en/api-capabilities/grok/overview): model lineup, pricing (matching xAI official), verified capability matrix, and the unsupported-features list
* [Chat & Reasoning](/en/api-capabilities/grok/chat): streaming, chain-of-thought billing essentials, structured outputs, function calling, vision input
* [Web & X Search](/en/api-capabilities/grok/web-search): `web_search` / `x_search` verified performing real searches; X search is unique to Grok
* [Code Execution & MCP](/en/api-capabilities/grok/code-execution-mcp): server-side Python sandbox and Remote MCP verified working
* [Multi-Agent Model](/en/api-capabilities/grok/multi-agent): capabilities and the billing-amplification profile of multi-agent collaboration

Feedback from real-world usage is always welcome — we keep the docs improving.

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