> For the complete documentation index, see [llms.txt](https://docs.dimo.foundation/protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dimo.foundation/protocol/identity-protocol/readme.md).

# Overview

Contracts can be categorized as follows:

* [**Registry**](/protocol/identity-protocol/registry.md)**:** This is the entry point and single contract [DIMO Registry](#dimo-registry).
* [**Nodes & NFTs**](/protocol/identity-protocol/nodes-and-nfts.md)**:** The core functionality of the system that builds the DIMO identity.
* [**Auxiliary**](/protocol/identity-protocol/auxiliary-contracts.md)**:** Supplementary contracts that does not fit into the Registry and Nodes category.

<figure><img src="https://117111452-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FfmY0p4toAb7e89toAV2R%2Fuploads%2Fgit-blob-a09f56e97033b262ee51ec3c665ac2ce9c0a436d%2FContracts.png?alt=media" alt=""><figcaption></figcaption></figure>