> For the complete documentation index, see [llms.txt](https://docs.onyx.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.onyx.org/developers/onyx-sdk.md). # Onyx SDK The Onyx SDK is a powerful TypeScript library that facilitates seamless interaction with Onyx networks. It provides robust tools for bridging assets, passing messages across networks, and interfacing with smart contracts through an intuitive and developer-friendly API. #### Key Features * Token Bridging: Effortlessly transfer assets between Base and Onyx. * Message Passing: Enable cross-chain communication. * Contracts Interface: Utilize strongly-typed methods for smart contract interaction. This guide provides an overview of the Onyx SDK functionality. Refer to the tutorials for more examples and in-depth explanations. \[UNDER CONSTRUCTION] --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.onyx.org/developers/onyx-sdk.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.