> For the complete documentation index, see [llms.txt](https://gl-docs.gitbook.io/zkpass/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gl-docs.gitbook.io/zkpass/core-components/service-architecture.md).

# Service Architecture

In the cloud, far from the complexities of your local machine, lies the zkPass Service. This service is like a well-orchestrated duo, composed of the **RESTful API Web Service** and the **zkPass Query Host**. Each has a role to play in the secure creation of what's known as a zkPass Proof.

<figure><img src="/files/ydBItphaKvCyDDL2cgjS" alt="" width="563"><figcaption></figcaption></figure>