> For the complete documentation index, see [llms.txt](https://liquiidio.gitbook.io/unity-plugin-suite/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://liquiidio.gitbook.io/unity-plugin-suite/readme/historical-and-state-data-access.md).

# Historical and State Data access

[Hyperion](https://hyperion.docs.eosrio.io/) the most commonly used API allowing developers to access/query historical and state data of leap-based blockchains.

* See [Hyperion History Api](/unity-plugin-suite/sources/hyperion.md) to learn how to access/query historical and state-data.

[EosSharp](https://github.com/liquiidio/EosSharp) C#-based implementation of eos-js, used to access state data and to communicate with Leap-Nodes and their RPC-Endpoints (push transactions, query table-data and more)

* See [EosSharp](/unity-plugin-suite/sources/eos_sharp.md) to learn how to query state-data, how to serialize or deserialize data and objects and how to access the Leap-Nodes RPC-Endpoints