CreditBar
Buy
K

Connect Kit

You need API key. About two minutes.

1Get your API key

API key

Paste the Kit API key
  1. Open Settings, then the Developer tab in Kit.
  2. Click Add a new key and give it an internal name.
  3. Copy the V4 key now: it cannot be viewed again.

Kit, Settings, Developer, API keys. The V4 key goes in the X-Kit-Api-Key header; a V3 secret is a different value and is refused.

Open the page

https://app.kit.com/account_settings/developer_settings

2Add it to CreditBar

  1. Open CreditBar from the menu bar and choose Settings, then Accounts.
  2. Click Add account and pick Kit.
  3. Paste the API key into the matching field, and give the account a label you will recognise.
  4. Click Test connection, then Add. Numbers appear in the menu bar within a minute.

Keys are stored in your Mac's Keychain and only ever sent to Kit. Nothing passes through a CreditBar server.

3What it reads

Reports
subscribers, plus what joined and cancelled over the window
Calls
https://api.kit.com/v4/account/growth_stats
Refreshes
At most every 15 minutes
API docs
Kit reference, checked 2026-09-18

Kit reports these in the account's sending time zone, not UTC, so a day near a boundary can differ from the dashboard by a few hours.