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# Function isRpcReply

*   <a id="isrpcreply"></a>
    
    ```typescript
    isRpcReply(data: WireFrameInput): data is RpcReplyFrame
    ```
    
    Types: [WireFrameInput](../types/core.Supporting_types.WireFrameInput.md), [RpcReplyFrame](../types/core.RpcReplyFrame.md)
    
    A host→project RPC reply: requires a numeric `id` and boolean `ok`.
    
    #### Parameters
    
    *   data: [WireFrameInput](../types/core.Supporting_types.WireFrameInput.md)
    
    #### Returns data is [RpcReplyFrame](../types/core.RpcReplyFrame.md)