# Introduction **Welcome to the XYO Layer One Developer Documentation!** As a developer, you’re invited to build with us on the [XYO Layer One Blockchain](/xyo-layer-one/what-is-xyo-layer-one.md). Whether you're adding blockchain verification to device data or deploying early versions of test dApps, our documentation will guide you through connecting to our Testnet and beginning your journey with XYO. To begin, you’ll need XL1 Testnet tokens, which let you interact with the network, test transactions, and validate application behavior in a risk-free environment. These tokens are available for developers participating in the early Testnet phase. Inside, you’ll find step-by-step instructions to: * Connect to the Testnet network * Deploy contracts and data validators * Work with sample data from Bound Witnesses * Provide feedback and contribute improvements XYO Layer One is designed for real-world verification and decentralized trust. Use these resources to start testing, building, and exploring. Additional features, programs, and tools will be released as the network develops. --- # Agent Instructions: 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.xyo.network/developers/introduction.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.