If you can talk to a hubspot admin, these are the scopes your account needs to be able use this tool:
const scopes = [
"oauth",
"crm.objects.contacts.read",
"crm.objects.contacts.write",
"crm.schemas.contacts.read",
"crm.objects.companies.read",
"crm.objects.companies.write",
"crm.schemas.companies.read",
"crm.objects.deals.read",
"crm.objects.deals.write",
"crm.schemas.deals.read",
"crm.objects.owners.read",
"crm.schemas.custom.read",
"crm.objects.custom.read",
"files",
"sales-email-read",
"timeline",
"crm.lists.read",
"crm.lists.write",
];