> ## Documentation Index
> Fetch the complete documentation index at: https://voltaire.tevm.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# ERC165

> Auto-generated API documentation

[**@tevm/voltaire**](../../index.mdx)

***

[@tevm/voltaire](../../index.mdx) / [index](../index.mdx) / ERC165

# ERC165

## Variables

### INTERFACE\_IDS

> `const` **INTERFACE\_IDS**: `object`

Defined in: [src/standards/ERC165.ts:16](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/standards/ERC165.ts#L16)

Known interface IDs (XOR of all function selectors in the interface)

#### Type Declaration

##### ERC1155

> `readonly` **ERC1155**: `"0xd9b67a26"` = `"0xd9b67a26"`

ERC-1155 Multi Token Standard

##### ERC1155MetadataURI

> `readonly` **ERC1155MetadataURI**: `"0x0e89341c"` = `"0x0e89341c"`

ERC-1155 Metadata URI Extension

##### ERC165

> `readonly` **ERC165**: `"0x01ffc9a7"` = `"0x01ffc9a7"`

ERC-165 itself

##### ERC20

> `readonly` **ERC20**: `"0x36372b07"` = `"0x36372b07"`

ERC-20 Token Standard

##### ERC2981

> `readonly` **ERC2981**: `"0x2a55205a"` = `"0x2a55205a"`

ERC-2981 NFT Royalty Standard

##### ERC4906

> `readonly` **ERC4906**: `"0x49064906"` = `"0x49064906"`

ERC-4906 Metadata Update Extension

##### ERC721

> `readonly` **ERC721**: `"0x80ac58cd"` = `"0x80ac58cd"`

ERC-721 Non-Fungible Token

##### ERC721Enumerable

> `readonly` **ERC721Enumerable**: `"0x780e9d63"` = `"0x780e9d63"`

ERC-721 Enumerable Extension

##### ERC721Metadata

> `readonly` **ERC721Metadata**: `"0x5b5e139f"` = `"0x5b5e139f"`

ERC-721 Metadata Extension

***

### SELECTOR

> `const` **SELECTOR**: `"0x01ffc9a7"` = `"0x01ffc9a7"`

Defined in: [src/standards/ERC165.ts:11](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/standards/ERC165.ts#L11)

ERC-165 function selector

## Functions

### decodeSupportsInterface()

> **decodeSupportsInterface**(`data`): `boolean`

Defined in: [src/standards/ERC165.ts:51](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/standards/ERC165.ts#L51)

Decode supportsInterface return value

#### Parameters

##### data

`string`

#### Returns

`boolean`

***

### detectInterfaces()

> **detectInterfaces**(`provider`, `contract`): `Promise`\<`string`\[]>

Defined in: [src/standards/ERC165.ts:91](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/standards/ERC165.ts#L91)

Detect which standard interfaces a contract supports

#### Parameters

##### provider

###### request

##### contract

`string`

#### Returns

`Promise`\<`string`\[]>

***

### encodeSupportsInterface()

> **encodeSupportsInterface**(`interfaceId`): `string`

Defined in: [src/standards/ERC165.ts:40](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/standards/ERC165.ts#L40)

Encode supportsInterface(bytes4) calldata

#### Parameters

##### interfaceId

`string`

#### Returns

`string`

***

### supportsInterface()

> **supportsInterface**(`provider`, `contract`, `interfaceId`): `Promise`\<`boolean`>

Defined in: [src/standards/ERC165.ts:61](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/standards/ERC165.ts#L61)

Check if contract supports an interface

#### Parameters

##### provider

Ethereum provider (must support eth\_call)

###### request

##### contract

`string`

Contract address

##### interfaceId

`string`

Interface ID to check (e.g., INTERFACE\_IDS.ERC721)

#### Returns

`Promise`\<`boolean`>