ProspectingConnector
ZeroBounce
Verify an email address is deliverable before it goes anywhere, called from the same Claude or ChatGPT chat as the rest of your MCP-connected stack.
Official site: www.zerobounce.net
What it can do
1 send
- 01Send
Verify email deliverability before a send
Answers one question only — is this address deliverable — before it's used anywhere, not after a bounce already happened. The narrowest tool in this list on purpose: verification, not discovery.
Is there already a ZeroBounce connector for Claude?
Yes — ZeroBounce ships its own open-source MCP server, and it does more than this card: validate, find and score addresses, and search a domain, all from the vendor's own tool. This connector deliberately does one narrower thing instead — check whether a single address is deliverable before it's used, nothing upstream and nothing downstream — from the same MCP session as the rest of your Tulina-connected stack, so a workflow that also touches your CRM or your inbox doesn't need a second connector switched on for it.
Why through Tulina
The connection was never the hard part.
Most systems now publish their own way for a model to reach them, and that is good: it is what Tulina connects to. The hard part is deciding who may use it, what it is allowed to return, and what the model knows before it asks.
The keys stay in one place
YouTeamOrganisation
Connect ZeroBounce once. The credential is encrypted in a vault, never held in clear, and never pasted into a chat or a workflow file. A person uses their own key where they have one, their team's where they do not, the organisation's after that, so nobody is blocked and nobody holds more access than they need. Revoke it once and everything running on it stops.
What leaves is filtered before it leaves
fields droppedmasked or hashedpseudonymised
Roles decide who can reach ZeroBounce at all. Beyond that, a policy on the connector itself decides what comes back. The data is minimised at the source rather than after it has already reached a model.
Every call is on the record
whatwhowhen
Runs are logged for the organisation. That is what makes an automated action reviewable after the fact, and it is what a security review asks for first.
The run starts knowing your company
namingkey accountsdecisions
A direct connection gives a model access. It does not tell it how your company names things, which accounts matter, or what was decided last quarter. Tulina carries that across every tool, so the same request against ZeroBounce returns something usable instead of something generic.
Processes that run on ZeroBounce
None published yet.