Hii im using Vapi web sdk, it is possible to invoke to the tools on the client side and not only to notify a remove server ?

Custom Tools by nature are webhook-based, so you cannot invoke them on the client-side. Instead, you can only invoke them on your server-side. By the way, what's your use case of invoking tools from the client-side? If you can help me with it, I can try to see if there is some possibility by which I can help you.