Clean your list without a CSV

Connect Mailchimp, HubSpot or Brevo. We pull the list, check every address and write the result back to your contacts as fields.

Integrations

Your list stays where it lives

No more export, clean, re-import. You connect once.

Five stepsConnect, pick a list, import, verify, tag. Nothing to download or upload.

Eight providersMailchimp, Brevo, Klaviyo, ActiveCampaign, HubSpot, Constant Contact, Instantly and Smartlead. Click one to see how it connects.

MailchimpAPI key
Fields writtenCL_STATUSCL_SUBRSLTCL_SCORECL_VERIFAT

Nobody gets deletedA bad address stays on your list and gets a tag. You decide who goes.

Segment readyResults land in four fields. Build a segment on status and send only to clean addresses.

Moving files costs you

Every export is another copy. Copies go stale, the wrong file gets uploaded, and an address you cleaned stays on the old list.

With a connection the list stays in one place. The result goes straight onto the contact record, and your sending tool sees it right away.

FAQ

Frequently asked questions

Mailchimp, Brevo, Klaviyo, ActiveCampaign, HubSpot, Constant Contact, Instantly and Smartlead. HubSpot and Constant Contact use their own approval screen; the other six connect with an API key.

No. We never delete, unsubscribe or remove anyone. We write four fields only: status, detail, score and check date.

Yes, except on Klaviyo. Create the four custom fields once in your provider's dashboard; every later list reuses them.

Same as a file upload: 1 credit per unique address checked. Duplicates are free. A list can hold up to 100,000 contacts.

In an encrypted vault. The key is never written to a table in plain text, and it is deleted when you disconnect.

Connect your first list today

Connecting takes a minute. Your first 100 credits are on us.

Email list integrations: Mailchimp, HubSpot, Brevo