> For the complete documentation index, see [llms.txt](https://klayoracle.gitbook.io/v1.0.0/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://klayoracle.gitbook.io/v1.0.0/fundamentals.md).

# Fundamentals

- [Introduction](https://klayoracle.gitbook.io/v1.0.0/fundamentals/introduction.md)
- [Architecture](https://klayoracle.gitbook.io/v1.0.0/fundamentals/architecture.md)
- [Aggregation Mechanism](https://klayoracle.gitbook.io/v1.0.0/fundamentals/aggregation-mechanism.md)
- [Node & data provider communication](https://klayoracle.gitbook.io/v1.0.0/fundamentals/node-and-data-provider-communication.md): How nodes and data providers connect and communicate securely with each other.
- [Installing KlayOracle](https://klayoracle.gitbook.io/v1.0.0/fundamentals/installing-klayoracle.md)