B2B email verification API: catch-all mailbox resolution, spam-trap/abuse risk detection, and primary-email identification.
What it does
Use Allegrow in Fuse to:
Resolve catch-all mailboxes
Detect spam-trap and abuse risk
Identify a person’s primary email
Setup
No setup needed. Fuse runs Allegrow on its own account and bills each successful step to your credit balance.
Describe what you need to Fuse Deep Research in plain language. The agent decides when to call Allegrow, in what order, and how to combine the results.
Optional: to use your own Allegrow key instead, open Settings → Provider Keys in the Fuse app (workspace owners and admins), add the key and save. Fuse checks it straight away, and your key is only used for your own runs.
Category
Contact verification
Access
Included with Fuse
Credits
20 per successful step on Fuse’s keys, 5 on your own key.
Your own key
Settings → Provider Keys in the Fuse app (workspace owners and admins).
