Fact Engineering uses Tavily and Exa for web research during live-research fact checks. Its privacy policy states that claim text is sent to these providers. Its security page lists them as subprocessors for live web research on Tier-3 checks, receiving the claim text being researched.
The service checks documents and returns verdicts with supporting citations. Stamp AI gathers and screens live-web evidence before ruling on claims. For deeper checks, the Research Panel has models from different providers research claims independently, with a challenger and a separate judge weighing their votes into a verdict.
Privacy PolicyListed 25 Oct 2026 · Fact Engineering · Web pageFact Engineering states that it sends claim text to Tavily and Exa for live-research checks.
Security and subprocessors
Listed 25 Oct 2026 · Fact Engineering · Web page
Fact Engineering lists Tavily and Exa among web-search providers used for live web research on Tier-3 checks, receiving claim text.
Security and subprocessorsListed 25 Oct 2026 · Fact Engineering · Web pageFact Engineering lists Tavily and Exa among web-search providers used for live web research on Tier-3 checks, receiving claim text.
Fact Engineering is a document fact-checking service operated by Fact Engineering Inc., a Delaware corporation, for publishers, researchers and teams preparing content for publication. Its Stamp AI product checks claims against live web evidence and returns cited verdicts. The Research Panel uses models from multiple providers for deeper checks. Users can upload documents or paste text, review sources and export reports. The service also offers spelling and grammar checks, plus an API and signed webhooks for integrating verification into publishing workflows.
Fact Engineering makes Stamp AI its default checking product
Stamp AI became the default check, verifying claims against screened web evidence with audited citations. The company also introduced free reuse of unchanged claims verified within 24 hours and revised per-check pricing.
Document fact-checking application returning cited verdicts, with a multi-model Research Panel and API access. · Workplace tools
How they use Tavily
Fact Engineering uses Tavily and Exa for web research during live-research fact checks. Its privacy policy states that claim text is sent to these providers. Its security page lists them as subprocessors for live web research on Tier-3 checks, receiving the claim text being researched.
The service checks documents and returns verdicts with supporting citations. Stamp AI gathers and screens live-web evidence before ruling on claims. For deeper checks, the Research Panel has models from different providers research claims independently, with a challenger and a separate judge weighing their votes into a verdict.
Privacy PolicyListed 25 Oct 2026 · Fact Engineering · Web pageFact Engineering states that it sends claim text to Tavily and Exa for live-research checks.
Security and subprocessors
Listed 25 Oct 2026 · Fact Engineering · Web page
Fact Engineering lists Tavily and Exa among web-search providers used for live web research on Tier-3 checks, receiving claim text.
Security and subprocessorsListed 25 Oct 2026 · Fact Engineering · Web pageFact Engineering lists Tavily and Exa among web-search providers used for live web research on Tier-3 checks, receiving claim text.
Fact Engineering is a document fact-checking service operated by Fact Engineering Inc., a Delaware corporation, for publishers, researchers and teams preparing content for publication. Its Stamp AI product checks claims against live web evidence and returns cited verdicts. The Research Panel uses models from multiple providers for deeper checks. Users can upload documents or paste text, review sources and export reports. The service also offers spelling and grammar checks, plus an API and signed webhooks for integrating verification into publishing workflows.
Fact Engineering makes Stamp AI its default checking product
Stamp AI became the default check, verifying claims against screened web evidence with audited citations. The company also introduced free reuse of unchanged claims verified within 24 hours and revised per-check pricing.
