Connect SendGrid
You need API key. About two minutes.
1Get your API key
API key
SG.…- In SendGrid, go to Settings, then API Keys, and click Create API Key.
- Name the key and choose Custom Access.
- Give Stats read access and leave every other permission off.
- Click Create & View and copy the key: SendGrid shows it only once.
SendGrid, Settings, API Keys. A restricted key works as long as Stats has read access. A full access key is not needed.
Open the pagehttps://app.sendgrid.com/settings/api_keys
2Add it to CreditBar
- Open CreditBar from the menu bar and choose Settings, then Accounts.
- Click Add account and pick SendGrid.
- Paste the API key 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 SendGrid. Nothing passes through a CreditBar server.
3What it reads
- Reports
- emails submitted and delivered per day over the chosen window
- Calls
- https://api.sendgrid.com/v3/stats
- Refreshes
- At most every 15 minutes
- API docs
- SendGrid reference, checked 2026-09-18
Emails submitted, which is what SendGrid bills. It publishes no plan allowance here, so this is a count rather than a percentage.