You can do this via filter attribute decorated over your API,or you can configure you middle ware with request timeout policy

Decorate over API endpoint [RequestTimeout(milliseconds: 2000)]

Through the middleware

`builder.Services.AddRequestTimeouts(options => {
    options.DefaultPolicy =
        new RequestTimeoutPolicy { Timeout = TimeSpan.FromMilliseconds(1500) };
    options.AddPolicy("MyPolicy", TimeSpan.FromSeconds(2));
});`

Please refer the link enter link description here