# Token Architecture

***

<figure><img src="https://4165434966-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiLP4xRVEAsMsh2T7x518%2Fuploads%2FOQnXVNBQTc2Gym5bPcR2%2FUntitled%20design%20(4).png?alt=media&#x26;token=249b7563-cc07-448e-9e99-c1f4c2bf9052" alt=""><figcaption></figcaption></figure>

## CROME Agent Protocol.

The CROME Agent Protocol integrates multiple Ethereum token standards into one cohesive structure, creating highly functional autonomous agents. CAP consists of four clearly defined layers:&#x20;

• **ERC-20 Layer** \[*Fungible Token Layer*]: Defines tokens as fungible and tradable units, enabling seamless exchanges, staking, bridging, and liquidity pools across DeFi ecosystems.&#x20;

• **ERC-721 Layer** \[*Non-Fungible Identity Layer*]: Establishes a unique, non-fungible identity for each token, facilitating individual metadata storage, dedicated logic execution parameters, and precise on-chain identification.&#x20;

• **ERC-6551 Layer** \[*Token-Bound Account Layer*]: Associates each token with a dedicated Token-Bound Account, enabling tokens to manage assets, execute custom logic, and maintain a detailed historical state, autonomously.

• **AI Layer** \[*Autonomous Intelligence Layer]*: Equips each agent with adaptive decision-making capabilities, enabling them to interpret data, adjust behaviours, and coordinate actions autonomously through embedded or connected AI models.

Mathematically, the architecture is represented as:

$$
C = C\_{ERC20} \cup C\_{ERC721} \cup C\_{ERC6551}\cup C\_{AI}
$$

Where:

$$
\begin{array}{ll}
\mathbf{C\_{\text{ERC20}}} & \text{: Fungible, tradable token standard.} \\
\mathbf{C\_{\text{ERC721}}} & \text{: Non-fungible token providing unique identities and metadata.} \\
\mathbf{C\_{\text{ERC6551}}} & \text{: Token-bound account managing programmable logic, assets, and historical state.} \\
\mathbf{C\_{\text{AI}}} & \text{: Intelligence layer for perception, reasoning, adaptation, and multi-agent coordination.}
\end{array}
$$

{% hint style="info" %}
The integration of ERC-20, ERC-721, and ERC-6551 standards empowers each CROME agent with unique capabilities, forming the backbone of decentralized intelligent systems.
{% endhint %}