> For the complete documentation index, see [llms.txt](https://docs.wheelx.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wheelx.fi/sdk-and-widget.md).

# 📦 SDK & Widget

Choose the integration layer that best fits your application. Use a WheelX SDK for programmatic transaction flows, the MCP Server for AI-agent integrations, or the Widget for a ready-to-embed user interface.

### Choose an Integration Method

* **Comparing available developer tools** — [SDK Overview](/sdk-and-widget/sdk-overview.md): Compare supported languages, capabilities, and integration options.
* **Building with Python** — [Python SDK](/sdk-and-widget/python-sdk.md): Install the SDK, request quotes, and execute transactions in Python applications.
* **Building for web or Node.js** — [JavaScript SDK](/sdk-and-widget/js-sdk.md): Integrate WheelX into browser and server-side JavaScript applications.
* **Building high-performance services** — [Go SDK](/sdk-and-widget/go-sdk.md): Use WheelX in Go services and backend infrastructure.
* **Connecting AI agents** — [MCP Server](/sdk-and-widget/mcp-server.md): Expose WheelX tools and resources through the Model Context Protocol.
* **Embedding a complete user experience** — [Widget](/sdk-and-widget/widget.md): Add a configurable WheelX transaction interface to a web application.

### Widget Guides

* [Quick Start](/sdk-and-widget/widget/quick-start.md): Install and configure the Widget.
* [Customization](/sdk-and-widget/widget/customization.md): Configure networks, tokens, behavior, and visual styles.
* [Referral Commission](/sdk-and-widget/widget/referral-commission.md): Add a referral code and track commission-eligible activity.


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