harkbell

Create an API key

Create a key under Settings › Developers to let Zapier, Make, n8n or your own code read events and add contacts and callbacks. It is shown once.

Checked against the product on November 11, 2026

An API key lets your own software call Harkbell's API on behalf of one business. Only Owners and Admins can create one.

  1. Open Settings and choose the Developers tab.
  2. Under API keys, type a Key name that says what will use it, such as Zapier.
  3. Press Create key.
  4. Press Copy key and store it somewhere safe. Harkbell shows it once and keeps only a fingerprint.
  5. Press Done.

Send the key as Authorization: Bearer followed by the key on every request. Keys start with hk_live_. The developer reference lists every endpoint and example.

Keep the key on a server

The API refuses requests from web pages, so never put a key in a website or an app where visitors can read it. A business can hold up to 10 active keys; revoke one you no longer use before creating another.

Revoke a key

Press Revoke beside the key and confirm Revoke key. Everything using it stops at once, and its automations are switched off. A key is also revoked automatically when the person who created it leaves the team or stops being an Owner or Admin.

I lost the key. Can I see it again?

No. Create a new key, update whatever used the old one, and revoke the old key.

What can a key do?

It lets your software read events and add or update contacts and callbacks for that business. The developer reference lists exactly what it can reach.

Related guides

Still stuck?

Write to us and a person who built Harkbell will answer, on working days.