---
title: 'Token Standards'
description: 'Explore token standards on Paxeer Network including native PAX, ERC-20, ERC-721, ERC-1155, and USDX on LayerX.'
keywords: ['token standards', 'erc20', 'erc721', 'erc1155', 'pax', 'usdx', 'nfts']
---

> **For AI agents:** the complete documentation index is at [llms.txt](/llms.txt). Append `.md` to any page URL for its markdown version.

Paxeer Network supports native tokens and EVM smart contract tokens. Use ERC-20, ERC-721, or ERC-1155 for all new token deployments.

## PAX - native token

PAX is the native token of Paxeer Network. It serves two primary roles:

- **Gas token**: Used to pay transaction fees on the Paxeer L1.
- **Staking and governance**: Used to secure the network through staking and to participate in on-chain governance.

### Denominations

**EVM**

```
1 PAX = 10^18 wei = 1_000_000_000_000_000_000 wei
1 PAX = 10^9 gwei = 1_000_000_000 gwei
```

**Cosmos**

```
1 PAX = 10^18 uhpx (atto-HPX)
1 PAX = 10^9 nhpx (nano-HPX)
1 PAX = 10^6 uhpx (micro-HPX, base denom)
1 gwei = 1 nhpx
```

The base denomination on the Cosmos side is `uhpx`.

## Fungible tokens

### ERC-20

ERC-20 defines a standard interface for fungible tokens.

**Use ERC-20 for any new fungible token on Paxeer.**

```solidity
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/evm/evm-general/token/ERC20/ERC20.sol";

contract MyToken is ERC20 {
    constructor() ERC20("MyToken", "MTK") {
        _mint(msg.sender, 1_000_000 * 10 ** decimals());
    }
}
```

Deploy using Hardhat, Foundry, or Remix - standard Ethereum tooling works without modification.

## NFTs

Non-fungible tokens represent unique digital assets. Paxeer supports the following EVM standards:

- **ERC-721**: The standard for non-fungible tokens. Each token has a unique ID and metadata.
- **ERC-1155**: A multi-token standard supporting both fungible and non-fungible tokens in a single contract.
- **ERC-2981**: Defines a royalty mechanism, ensuring creators receive a percentage of secondary sales.

**Use ERC-721 or ERC-1155 for any new NFT collection on Paxeer.**

## USDX on LayerX

USDX is the stable-value asset used for payments on LayerX. It is the settlement currency for 402LXP agent payments and Deus marketplace transactions.

- **Settlement**: Instant, zero-fee settlement on LayerX.
- **Anchoring**: LayerX batches are anchored to the Paxeer L1, inheriting full L1 security.
- **Usage**: Agents and APIs price services in USDX; payments flow via the 402LXP HTTP payment rail.

USDX is not deployed as a standard ERC-20 on L1 - it operates natively within the LayerX execution environment.