Constant Contact integration: connect via API token, verify contact lists

Last updated May 19, 2026Integrations

Constant Contact uses API token authentication.

Where to find your Constant Contact API token

  1. Sign into Constant Contact.
  2. Open Integrations → API Keys in your account settings.
  3. Generate or copy an existing API token.

Connecting Constant Contact

  1. Bulk Upload → Connect Email Platform → Constant Contact.
  2. Paste the API token.
  3. Save Connection.

What you can verify

Contact lists and tagged groups.

Cost

1 credit per contact verified.

Next steps