> ## Documentation Index
> Fetch the complete documentation index at: https://sequence-0fb8d9e6-api_docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# useMetadataClient

> Hook for accessing the Sequence Metadata client for token and contract metadata

## Import

```tsx theme={null}
import { useMetadataClient } from '@0xsequence/hooks'
```

## Usage

```tsx theme={null}
import { useMetadataClient } from '@0xsequence/hooks'

function CustomMetadataFetcher() {
  const metadataClient = useMetadataClient()
  const [metadata, setMetadata] = useState(null)
  const [isLoading, setIsLoading] = useState(false)
  
  const fetchContractMetadata = async () => {
    setIsLoading(true)
    try {
      // Fetch metadata for a specific contract
      const response = await metadataClient.getContractInfo({
        chainID: "1",
        contractAddress: "0x..." 
      })
      
      setMetadata(response.contractInfo)
    } catch (error) {
      console.error('Failed to fetch metadata:', error)
    } finally {
      setIsLoading(false)
    }
  }

  // Example of batch token metadata fetch
  const fetchBatchTokenMetadata = async () => {
    setIsLoading(true)
    try {
      const response = await metadataClient.getTokenMetadata({
        chainID: "1",
        contractAddress: "0x...",
        tokenIDs: ["1", "2", "3"]
      })
      
      setMetadata(response.tokenMetadata)
    } catch (error) {
      console.error('Failed to fetch token metadata:', error)
    } finally {
      setIsLoading(false)
    }
  }

  return (
    <div>
      <button 
        onClick={fetchContractMetadata}
        disabled={isLoading}
      >
        Fetch Contract Info
      </button>
      
      <button 
        onClick={fetchBatchTokenMetadata}
        disabled={isLoading}
      >
        Fetch Token Metadata
      </button>

      {isLoading && <div>Loading...</div>}
      
      {metadata && (
        <pre>
          {JSON.stringify(metadata, null, 2)}
        </pre>
      )}
    </div>
  )
}
```

## Return Type: `SequenceMetadata`

The hook returns a configured instance of the `SequenceMetadata` client. Here's the detailed structure:

```tsx theme={null}
interface SequenceMetadata {
  // Service Methods
  ping(headers?: object, signal?: AbortSignal): Promise<PingResponse>
  version(headers?: object, signal?: AbortSignal): Promise<VersionResponse>
  runtimeStatus(headers?: object, signal?: AbortSignal): Promise<RuntimeStatusReturn>
  
  // Task Management Methods
  getTask(args: GetTaskArgs, headers?: object, signal?: AbortSignal): Promise<GetTaskReturn>
  getTaskStatus(args: GetTaskStatusArgs, headers?: object, signal?: AbortSignal): Promise<GetTaskStatusReturn>
  
  // Token Metadata Methods
  getTokenMetadata(args: GetTokenMetadataArgs, headers?: object, signal?: AbortSignal): Promise<GetTokenMetadataReturn>
  getTokenMetadataBatch(args: GetTokenMetadataBatchArgs, headers?: object, signal?: AbortSignal): Promise<GetTokenMetadataBatchReturn>
  searchTokenMetadata(args: SearchTokenMetadataArgs, headers?: object, signal?: AbortSignal): Promise<SearchTokenMetadataReturn>
  searchTokenIDs(args: SearchTokenIDsArgs, headers?: object, signal?: AbortSignal): Promise<SearchTokenIDsReturn>
  tokenCollectionFilters(args: TokenCollectionFiltersArgs, headers?: object, signal?: AbortSignal): Promise<TokenCollectionFiltersReturn>
  
  // Token Refresh Methods
  refreshTokenMetadata(args: RefreshTokenMetadataArgs, headers?: object, signal?: AbortSignal): Promise<RefreshTokenMetadataReturn>
  enqueueTokensForRefresh(args: EnqueueTokensForRefreshArgs, headers?: object, signal?: AbortSignal): Promise<EnqueueTokensForRefreshReturn>
  getTokenRefreshStatus(args: GetTokenRefreshStatusArgs, headers?: object, signal?: AbortSignal): Promise<GetTokenRefreshStatusReturn>
  getTokenRefreshResult(args: GetTokenRefreshResultArgs, headers?: object, signal?: AbortSignal): Promise<GetTokenRefreshResultReturn>
  cancelRefreshJob(args: CancelRefreshJobArgs, headers?: object, signal?: AbortSignal): Promise<CancelRefreshJobReturn>
  
  // Contract Methods
  getContractInfo(args: GetContractInfoArgs, headers?: object, signal?: AbortSignal): Promise<GetContractInfoReturn>
  getContractInfoBatch(args: GetContractInfoBatchArgs, headers?: object, signal?: AbortSignal): Promise<GetContractInfoBatchReturn>
  searchContractInfo(args: SearchContractInfoArgs, headers?: object, signal?: AbortSignal): Promise<SearchContractInfoReturn>
  searchContractInfoBatch(args: SearchContractInfoBatchArgs, headers?: object, signal?: AbortSignal): Promise<SearchContractInfoBatchReturn>
  refreshContractInfo(args: RefreshContractInfoArgs, headers?: object, signal?: AbortSignal): Promise<RefreshContractInfoReturn>
  refreshContractTokens(args: RefreshContractTokensArgs, headers?: object, signal?: AbortSignal): Promise<RefreshContractTokensReturn>
  refreshAllContractTokens(args: RefreshAllContractTokensArgs, headers?: object, signal?: AbortSignal): Promise<RefreshAllContractTokensReturn>
  
  // Search Methods
  searchMetadata(args: SearchMetadataArgs, headers?: object, signal?: AbortSignal): Promise<SearchMetadataReturn>
  searchTokens(args: SearchTokensArgs, headers?: object, signal?: AbortSignal): Promise<SearchTokensReturn>
  searchContracts(args: SearchContractsArgs, headers?: object, signal?: AbortSignal): Promise<SearchContractsReturn>
  
  // Niftyswap Methods
  getNiftyswapTokenQuantity(args: GetNiftyswapTokenQuantityArgs, headers?: object, signal?: AbortSignal): Promise<GetNiftyswapTokenQuantityReturn>
  getNiftyswapUnitPrices(args: GetNiftyswapUnitPricesArgs, headers?: object, signal?: AbortSignal): Promise<GetNiftyswapUnitPricesReturn>
  getNiftyswapUnitPricesWithQuantities(args: GetNiftyswapUnitPricesWithQuantitiesArgs, headers?: object, signal?: AbortSignal): Promise<GetNiftyswapUnitPricesWithQuantitiesReturn>
  
  // Mint Monitor Methods
  addContractToMintMonitor(args: AddContractToMintMonitorArgs, headers?: object, signal?: AbortSignal): Promise<AddContractToMintMonitorReturn>
  removeContractFromMintMonitor(args: RemoveContractFromMintMonitorArgs, headers?: object, signal?: AbortSignal): Promise<RemoveContractFromMintMonitorReturn>
  mintMonitorJobStatus(args: MintMonitorJobStatusArgs, headers?: object, signal?: AbortSignal): Promise<MintMonitorJobStatusReturn>
  mintMonitorTriggerJob(args: MintMonitorTriggerJobArgs, headers?: object, signal?: AbortSignal): Promise<MintMonitorTriggerJobReturn>
  
  // Contract Sync Methods
  syncContractTokens(args: SyncContractTokensArgs, headers?: object, signal?: AbortSignal): Promise<SyncContractTokensReturn>
  abortContractSync(args: AbortContractSyncArgs, headers?: object, signal?: AbortSignal): Promise<AbortContractSyncReturn>
  contractSyncJobStatus(args: ContractSyncJobStatusArgs, headers?: object, signal?: AbortSignal): Promise<ContractSyncJobStatusReturn>
  
  // Directory Methods
  directoryGetNetworks(args: DirectoryGetNetworksArgs, headers?: object, signal?: AbortSignal): Promise<DirectoryGetNetworksReturn>
  directoryGetCollections(args: DirectoryGetCollectionsArgs, headers?: object, signal?: AbortSignal): Promise<DirectoryGetCollectionsReturn>
  directorySearchCollections(args: DirectorySearchCollectionsArgs, headers?: object, signal?: AbortSignal): Promise<DirectorySearchCollectionsReturn>
}
```

### Available Methods

#### Service Methods

* `ping`: Check service availability
* `version`: Get metadata service version information
* `runtimeStatus`: Get current runtime status of the service

#### Task Management Methods

* `getTask`: Get details of a specific task
* `getTaskStatus`: Get status of a task

#### Token Metadata Methods

* `getTokenMetadata`: Fetch metadata for specific tokens
* `getTokenMetadataBatch`: Batch fetch token metadata
* `searchTokenMetadata`: Search through token metadata
* `searchTokenIDs`: Search for specific token IDs
* `tokenCollectionFilters`: Get available filters for token collections

#### Token Refresh Methods

* `refreshTokenMetadata`: Refresh metadata for specific tokens
* `enqueueTokensForRefresh`: Queue tokens for metadata refresh
* `getTokenRefreshStatus`: Check status of token refresh
* `getTokenRefreshResult`: Get results of token refresh
* `cancelRefreshJob`: Cancel an ongoing refresh job

#### Contract Methods

* `getContractInfo`: Fetch metadata for a single contract
* `getContractInfoBatch`: Batch fetch contract metadata
* `searchContractInfo`: Search through contract metadata
* `searchContractInfoBatch`: Batch search contract metadata
* `refreshContractInfo`: Refresh contract metadata
* `refreshContractTokens`: Refresh tokens for a contract
* `refreshAllContractTokens`: Refresh all tokens for a contract

#### Search Methods

* `searchMetadata`: Search through all metadata
* `searchTokens`: Search for specific tokens
* `searchContracts`: Search for specific contracts

#### Niftyswap Methods

* `getNiftyswapTokenQuantity`: Get token quantity information from Niftyswap
* `getNiftyswapUnitPrices`: Get unit prices from Niftyswap
* `getNiftyswapUnitPricesWithQuantities`: Get unit prices with quantities from Niftyswap

#### Mint Monitor Methods

* `addContractToMintMonitor`: Add contract to mint monitoring
* `removeContractFromMintMonitor`: Remove contract from mint monitoring
* `mintMonitorJobStatus`: Check status of mint monitoring job
* `mintMonitorTriggerJob`: Trigger a mint monitoring job

#### Contract Sync Methods

* `syncContractTokens`: Sync tokens for a contract
* `abortContractSync`: Abort an ongoing contract sync
* `contractSyncJobStatus`: Check status of contract sync

#### Directory Methods

* `directoryGetNetworks`: Get available networks
* `directoryGetCollections`: Get collections directory
* `directorySearchCollections`: Search through collections directory

## Parameters

The hook doesn't accept any parameters but uses configuration from the `useConfig` hook:

```tsx theme={null}
interface Config {
  env: {
    metadataUrl: string
    // ... other environment settings
  }
  projectAccessKey: string
  jwt?: string
}
```

The configuration determines:

* The metadata service URL
* Your project's access key for authentication
* Optional JWT for authenticated requests

The client is memoized based on the `projectAccessKey` and `jwt` to prevent unnecessary re-instantiation.