> For the complete documentation index, see [llms.txt](https://developers.polymath.network/polymath/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.polymath.network/polymath/api/ipolymathregistry.md).

# IPolymathRegistry.sol

View Source: [contracts/interfaces/IPolymathRegistry.sol](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/contracts/interfaces/IPolymathRegistry.sol)

**↘ Derived Contracts:** [**PolymathRegistry**](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/PolymathRegistry.md)

**IPolymathRegistry**

**Events**

```javascript
event ChangeAddress(string  _nameKey, address indexed _oldAddress, address indexed _newAddress);
```

## Functions

* [getAddress(string \_nameKey)](/polymath/api/ipolymathregistry.md#getaddress)
* [changeAddress(string \_nameKey, address \_newAddress)](/polymath/api/ipolymathregistry.md#changeaddress)

### getAddress

⤿ Overridden Implementation(s): [PolymathRegistry.getAddress](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/PolymathRegistry.md#getaddress)

Returns the contract address

```javascript
function getAddress(string _nameKey) external view
returns(registryAddress address)
```

**Returns**

address

**Arguments**

| Name      | Type   | Description                                 |
| --------- | ------ | ------------------------------------------- |
| \_nameKey | string | is the key for the contract address mapping |

### changeAddress

⤿ Overridden Implementation(s): [PolymathRegistry.changeAddress](https://github.com/PolymathNetwork/polymath-core/tree/096ba240a927c98e1f1a182d2efee7c4c4c1dfc5/docs/api/PolymathRegistry.md#changeaddress)

Changes the contract address

```javascript
function changeAddress(string _nameKey, address _newAddress) external nonpayable
```

**Arguments**

| Name         | Type    | Description                                 |
| ------------ | ------- | ------------------------------------------- |
| \_nameKey    | string  | is the key for the contract address mapping |
| \_newAddress | address | is the new contract address                 |