The verifier cleans lists you bring yourself: a CRM export, an inherited spreadsheet, addresses collected from a form.
- Open the Verifier in the app.
- Paste addresses or upload a CSV.
- Start the run. Large files process in the background, so you can leave the page.
- Download the results with a verdict per row.
Every fresh check costs half a credit, whatever the verdict turns out to be. Valid, invalid and catch-all all cost the same, because the verdict is what you are buying. Addresses checked recently are served from that result for free, so a run is billed for fresh checks only, rounded up to whole credits.
Catch-all results are labelled honestly rather than guessed at. A catch-all server accepts everything, so no provider can give a definitive answer, and anyone claiming otherwise is rounding up. You decide whether to keep those rows.
Credits come from your plan first, then from pay-as-you-go packs. A check balance from before 2026-09-19 is used before any credit.
The same verification is available through the API, the CLI and your AI agent, and it draws on the same balance.
Contacts that come from Argorant do not need this step. They are verified at the moment of export already.