Captain Verify
captainverify.comEmail verification service with a v2 API for checking email validity and returning a JSON result.
What your agent can do
verify the validity of your emails
Via API.
Tasks depend on the interface and permissions.
Connection methods
Choose a route that fits your agent.
API
For custom integrations
an API key
Docs checkedView paths for APIAPI connection
API path
https://api.captainverify.com/v2/verify- Authentication
- apikey=XXXXXXXXXXXXXXXXXXXX
View sources and checks
- API · verify the validity of your emailsChecked 9 Oct 2026