Zapier, Make & n8n
With webhooks any app can add something to your brain, and HeyOtto reports what happens to your own automations.
Incoming
Send a POST with JSON to /hooks/in/ followed by your personal key (Settings → Connect Claude). The type field decides what happens: a task, a note on a company or project, an idea, a meeting or a person.
Outgoing
Under Settings → Zapier, Make and n8n you set one webhook address. HeyOtto sends a notification for a new task, a completed task and a new person, signed with a secret if you set one. Never the content of your mail.
Working with n8n? Then use the HeyOtto node for n8n: several workflows at once, with triggers that register and unregister themselves.