# isChainSupported

> Overview of the isChainSupported function

> For the complete documentation index, see [llms.txt](/docs/llms.txt).

{/* This file is auto-generated by TypeDoc. Do not edit manually. */}

```ts
function isChainSupported(chainId): boolean;
```

Defined in: [packages/common/src/transport/chainRegistry.ts:155](https://github.com/alchemyplatform/aa-sdk/blob/v5.x.x/packages/common/src/transport/chainRegistry.ts#L155)

Checks if a chain ID is supported by the Alchemy RPC registry.

## Parameters

<table>
  <thead>
    <tr>
      <th align="left">Parameter</th>
      <th align="left">Type</th>
      <th align="left">Description</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>
        `chainId`
      </td>

      <td>
        `number`
      </td>

      <td>
        The chain ID to check
      </td>
    </tr>

  </tbody>
</table>

## Returns

`boolean`

True if the chain is supported, false otherwise