. Or use the REST API directly with POST /v1/verify."}},{"@type":"Question","name":"Is there a free tier?","acceptedAnswer":{"@type":"Answer","text":"Yes. Get an API key instantly with no signup required. The free tier includes 1,000 verifications per day (30,000/month). No credit card needed."}},{"@type":"Question","name":"What signals does Device.AI analyze?","acceptedAnswer":{"@type":"Answer","text":"Device.AI analyzes user agent, automation framework presence (Selenium, Puppeteer, PhantomJS, etc.), canvas fingerprint, WebGL renderer, screen resolution, timezone, hardware concurrency, browser feature support, and connection type."}}]}]}

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Technical deep dives on bot detection, device fingerprinting, and web security from the Device.AI engineering team.