What does error 403 mean when trying to send a post request to an API route using PHP Laravel version 10?

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HTTP error 403 is a standard HTTP status code that indicates that the server understands the request from the client, but refuses to fulfill it. In other words, the server denies the request from the client because the client is not authorized to access the requested resource.

In the context of a PHP Laravel API route, this error can occur if the client is not authenticated, does not have sufficient permissions, or is using an invalid API key/token. You may need to check your code and ensure that the client has proper authorization to access the API route.