Companies / MailTester Ninja / Anthropic
Does MailTester Ninja use Anthropic?
Possibly
We hold weak evidence for this, so check the source before relying on it.
- The company's privacy policy names it as a processor, controller or partner.
How we know
About MailTester Ninja
MailTester Ninja provides an email verifier and email finder that check addresses in real time and store nothing. It serves companies and business contacts for list cleaning, lead generation, and deliverability.
Summarized from its homepage on 7 Nov 2026.
What else MailTester Ninja uses
MailTester Ninja has evidence for 6 vendors. The strongest:
Other companies using Anthropic
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See MailTester Ninja's full stack with a source for every vendor, and ask the same question about any company from the API, Claude or your browser.
- Every company and vendor, with its public source
- 100 API calls a month, plus MCP and the Chrome extension
- Work email only. No card, no sales call