Connect Postmark
You need Server API token. About two minutes.
1Get your Server API token
Server API token
Paste the server token- Open Servers in Postmark and select the server to track.
- Open the API Tokens tab.
- Copy a Server API token, not the Account API token.
- Account Owners, Account Admins or Server Admins can see it.
Postmark, pick the server, API Tokens tab. The server token, not the account token: the account token manages servers and is refused by the stats API.
Open the pagehttps://account.postmarkapp.com/servers
2Add it to CreditBar
- Open CreditBar from the menu bar and choose Settings, then Accounts.
- Click Add account and pick Postmark.
- Paste the Server API token into the matching field, and give the account a label you will recognise.
- 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 Postmark. Nothing passes through a CreditBar server.
3What it reads
- Reports
- emails sent per day over the chosen window, and the total
- Calls
- https://api.postmarkapp.com/stats/outbound/sends
- Refreshes
- At most every 15 minutes
- API docs
- Postmark reference, checked 2026-09-18
One server, the one the token belongs to. Postmark publishes no plan allowance through the API, so this is a count rather than a percentage.