MailerLite integration: API key auth, groups + segments

MailerLite uses API-key authentication via their MailerLite Classic API.

Where to find your MailerLite API key

1. Sign into MailerLite.
2. Open Integrations → MailerLite API (or via account avatar → Integrations).
3. Click Generate new token (or use an existing API key if you already have one).
4. Copy the token.

What you can verify

MailerLite organizes subscribers into Groups (manually curated) and Segments (filter-defined). The list picker shows both.

Connecting MailerLite

1. Bulk Upload → Connect Email Platform → MailerLite.
2. Paste the API key.
3. Optionally name the connection.
4. Save Connection.

Cost

1 credit per subscriber verified.

Next steps