# Pet Eggs

Pet Eggs are rare items that are used to hatch into [Pets](https://devs.defikingdoms.com/nfts/pets).

{% hint style="info" %}
**ERC20:** Eggs are based on the ERC20 standard. For more information, please view the documentation by OpenZeppelin: <https://docs.openzeppelin.com/contracts/4.x/erc20>
{% endhint %}

{% hint style="warning" %}
Eggs have 0 decimals
{% endhint %}

## Contracts

### Addresses

#### DFK Chain

<table><thead><tr><th width="263.64356435643566">Name</th><th>Mainnet</th><th>Testnet</th></tr></thead><tbody><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-blue.png" alt="" data-size="line"> Blue Pet Egg (DFKBLUEEGG)</td><td><code>0xa61Bac689AD6867a605633520D70C49e1dCce853</code></td><td><code>0xC6b00B4005883C1Ff09fa1351B0f49027bCAB71a</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-golden.gif" alt="" data-size="line"> Golden Pet Egg (DFKGOLDEGG)</td><td><code>0xf2D479DaEdE7F9e270a90615F8b1C52F3C487bC7</code></td><td><code>0xdbEE8C336B06f2d30a6d2bB3817a3Ae0E34f4900</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-green.png" alt="" data-size="line"> Green Pet Egg (DFKGREENEGG)</td><td><code>0x8D2bC53106063A37bb3DDFCa8CfC1D262a9BDCeB</code></td><td><code>0xA9A8cc1AC7e7505a69cAca2E068716395CebE562</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-grey.png" alt="" data-size="line"> Grey Pet Egg (DFKGREGG)</td><td><code>0x7E121418cC5080C96d967cf6A033B0E541935097</code></td><td><code>0xC2198E513A341DA3Fb26b9dAf8d5b6C5480ceAB4</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-yellow.png" alt="" data-size="line"> Yellow Pet Egg (DFKYELOWEGG)</td><td><code>0x72F860bF73ffa3FC42B97BbcF43Ae80280CFcdc3</code></td><td><code>0x53b14727E0EdDDFc2958D65Ec6F86D1A3329e72F</code></td></tr></tbody></table>

#### Kaia

<table><thead><tr><th width="263.64356435643566">Name</th><th>Mainnet</th><th>Testnet</th></tr></thead><tbody><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-blue.png" alt="" data-size="line"> Blue Pet Egg (DFKBLUEEGG)</td><td><code>0x29ADd7D022c591D56eb4aFd262075dA900C67ab1</code></td><td><code>0xc9518D678Ea37488E8901b0687C02056CFe88C13</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-golden.gif" alt="" data-size="line"> Golden Pet Egg (DFKGOLDEGG)</td><td><code>0xc9731BE04F217543E3010cCbf903E858EFde840f</code></td><td><code>0xDEe702F3a2284B8Dbd1C3f7C85E6bda967DC566D</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-green.png" alt="" data-size="line"> Green Pet Egg (DFKGREENEGG)</td><td><code>0xb1Ec534fBBfEBd4563A4B0055E744286CE490f26</code></td><td><code>0xF2143c7c8Dfca976415bDf7d37dfa63aed8Ef741</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-grey.png" alt="" data-size="line"> Grey Pet Egg (DFKGREGG)</td><td><code>0xfd29ebdE0dd1331C19BBF54518df94b442ACb38C</code></td><td><code>0xBed733A13D2cF00A807427a47B4556Faa649984B</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-yellow.png" alt="" data-size="line"> Yellow Pet Egg (DFKYELOWEGG)</td><td><code>0x0A73aF98781bad9BCb80A71241F129EA877eF1b7</code></td><td><code>0x7E235f17c4ec372F9DD42916Cbd19C5b73d4C22E</code></td></tr></tbody></table>

#### Metis

<table><thead><tr><th width="263.64356435643566">Name</th><th>Mainnet</th><th>Testnet</th></tr></thead><tbody><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-blue.png" alt="" data-size="line"> Blue Pet Egg (DFKBLUEEGG)</td><td>0x9A3E3bF38C2a338d0a658a4b2c220A429a37f2c1</td><td>0x564fF09b5009d3DdD34071a3AC28d7F356Df83b4</td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-golden.gif" alt="" data-size="line"> Golden Pet Egg (DFKGOLDEGG)</td><td>0xC4a3D06B3E5D1244863285f439FA7A0711a1CD9f</td><td>0x397b9701FC224619f97702dD031A6629bbAc64e7</td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-green.png" alt="" data-size="line"> Green Pet Egg (DFKGREENEGG)</td><td>0x2DAC4d6461a383A66009846f0Dd9de976Ea5CE17</td><td>0x68F9705751DD348317e97F558Afc0973d45297b7</td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-grey.png" alt="" data-size="line"> Grey Pet Egg (DFKGREGG)</td><td>0x842DFd5E453eF385Dc276a2B7818ffaa9FBbfed6</td><td>0x640fc05E7c485a5f4A6f917B6373f3ec92b0d1E4</td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-yellow.png" alt="" data-size="line"> Yellow Pet Egg (DFKYELOWEGG)</td><td>0x1302718474bdAFe5a85f516836B4027e37B10abE</td><td>0x78AcA3345663E8A90328f3135C41D49F91879426</td></tr></tbody></table>

### Interfaces

```solidity
interface IInventoryItem {

    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);
    
    function allowance(address owner, address spender) view returns (uint256);
    function approve(address spender, uint256 amount) returns (bool);
    function balanceOf(address account) view returns (uint256);
    function burn(uint256 amount);
    function burnFrom(address account, uint256 amount);
    function decimals() view returns (uint8);
    function decreaseAllowance(address spender, uint256 subtractedValue) returns (bool);
    function increaseAllowance(address spender, uint256 addedValue) returns (bool);
    function name() view returns (string);
    function paused() view returns (bool);
    function symbol() view returns (string);
    function totalSupply() view returns (uint256);
    function transfer(address to, uint256 amount) returns (bool);
    function transferFrom(address from, address to, uint256 amount) returns (bool);
    
}
```

### ABIs

{% file src="<https://2908426948-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlZLlRJsOJCqm10zUsKr6%2Fuploads%2FscVOr3zS4dp74q4P1YlQ%2FInventoryItem.json?alt=media&token=1f0710f2-ad7a-4872-99e0-15128ac846ce>" %}

## Historical Contracts

{% hint style="danger" %}
These contracts have been deprecated and should not be used. They are listed here for data analysis and tracking purposes only.
{% endhint %}

#### Harmony

<table><thead><tr><th width="264.64356435643566">Name</th><th>Mainnet</th><th>Testnet</th></tr></thead><tbody><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-blue.png" alt="" data-size="line"> Blue Pet Egg (DFKBLUEEGG)</td><td><code>0x9678518e04Fe02FB30b55e2D0e554E26306d0892</code></td><td><code>0x9D9675170946eAffb3A750DB75AB4B559cC91668</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-golden.gif" alt="" data-size="line"> Golden Pet Egg (DFKGOLDEGG)</td><td><code>0x9edb3Da18be4B03857f3d39F83e5C6AAD67bc148</code></td><td><code>0x7b81c426162977525084dEe06Cb9D73F8A9fD77e</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-green.png" alt="" data-size="line"> Green Pet Egg (DFKGREENEGG)</td><td><code>0x6d605303e9Ac53C59A3Da1ecE36C9660c7A71da5</code></td><td><code>0xa5fFbff0b47B05cAd7Ab217Ea103F546a4Dae31F</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-grey.png" alt="" data-size="line"> Grey Pet Egg (DFKGREGG)</td><td><code>0x95d02C1Dc58F05A015275eB49E107137D9Ee81Dc</code></td><td><code>0x2dd97351F41411B2fAf0FbEb4235737815c7857b</code></td></tr><tr><td><img src="https://defi-kingdoms.b-cdn.net/art-assets/items/pet-egg-yellow.png" alt="" data-size="line"> Yellow Pet Egg (DFKYELOWEGG)</td><td><code>0x3dB1fd0Ad479A46216919758144FD15A21C3e93c</code></td><td><code>0x6D02EF7f7686c3330a40A0AD9218b66A957C9405</code></td></tr></tbody></table>