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Tags: Backend and APIs
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169–192 of 294 · Most stars

JavaScript/Node.js utility. Returns `true` if the value is a number or string number. Useful for checking regex match results, user input, parsed strings, etc.

  • number
  • is
  • isnan
  • javascript

Self-hosted, invisible CAPTCHA that detects AI agents driving real browsers. GDPR, WCAG 2.2 AA, and EAA: no cookies, no third-party data sharing, and no visual or audio puzzle. With a false-positive budget enforced in CI. Proof of work, drop-in for Turnstile and reCAPTCHA.

  • anti-bot
  • behavioral-analysis
  • bot-detection
  • captcha