> For the complete documentation index, see [llms.txt](https://worlddao.gitbook.io/worlddao-white-paper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://worlddao.gitbook.io/worlddao-white-paper/technical-implementation/architecture-overview.md).

# Architecture Overview

To get a World ID, an individual begins by downloading the World App. The app stores their World ID and enables them to use it across multiple platforms and services. The World App is user-friendly, particularly geared towards crypto beginners, and offers simple financial features based on decentralized finance: allowing users to on- and off-ramp, subject to the availability of providers, swap tokens through a decentralized exchange, and connect with dApps through WalletConnect. Importantly, the system allows other developers to create their own clients without seeking permission, meaning there can be various apps supporting World ID.

Once verified through the Orb, individuals are issued a World ID, a privacy-preserving proof-of-personhood credential. Through World ID, they can claim a set amount of WLD periodically (Worldcoin Grants), where laws allow. World ID can also be used to authenticate as human with other services (e.g., prevent user manipulation in the case of voting). In the future, other credentials can be issued on the Worldcoin Protocol as well.

To make World ID and the Worldcoin Protocol easy to use, an [open source](http://worldcoin.org/open-source) Software Development Kit (SDK) is available to simplify interactions for both Web3 and Web2 applications. The World ID software development kit (SDK) is the set of tools, libraries, APIs, and documentation that accompanies the Protocol. Developers can use the SDK to leverage World ID in their applications. The SDK makes web, mobile, and on-chain integrations fast and simple; it includes tools like a web widget (JS), developer portal, development simulator, examples, and guides.

<figure><img src="/files/eZv1YooLOMxBaMDwV3Y9" alt=""><figcaption><p>High level overview of the Worldcoin system and the connection between individual products and protocols.</p></figcaption></figure>


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