These are notes for Keap webhooks as of 2023-12-05. You can retrieve them via the KEAP REST API v1, but they are not documented anywhere else.

[
    "appointment.add",
    "appointment.delete",
    "appointment.edit",
    "company.add",
    "company.delete",
    "company.edit",
    "contact.add",
    "contact.delete",
    "contact.edit",
    "contactGroup.add",
    "contactGroup.applied",
    "contactGroup.delete",
    "contactGroup.edit",
    "contactGroup.removed",
    "invoice.add",
    "invoice.delete",
    "invoice.edit",
    "invoice.payment.add",
    "invoice.payment.delete",
    "invoice.payment.edit",
    "leadsource.add",
    "leadsource.delete",
    "leadsource.edit",
    "note.add",
    "note.delete",
    "note.edit",
    "opportunity.add",
    "opportunity.delete",
    "opportunity.edit",
    "opportunity.stage_move",
    "order.add",
    "order.delete",
    "order.edit",
    "product.add",
    "product.delete",
    "product.edit",
    "subscription.add",
    "subscription.delete",
    "subscription.edit",
    "task.add",
    "task.complete",
    "task.delete",
    "task.edit",
    "task.incomplete",
    "user.activate",
    "user.add",
    "user.edit"
]

Retrieve Available Webhooks

curl --location 'https://api.infusionsoft.com/crm/rest/v1/hooks/event_keys' \
--header 'X-Keap-API-Key: Your-Access-Token'

Docs: https://developer.keap.com/docs/rest/#tag/REST-Hooks/operation/list_hook_event_types