Vercel BotID is now generally available
Vercel BotID, an invisible CAPTCHA protection layer powered by Kasada, is now generally available. It uses behavioral signals and machine learning to distinguish human users from bots on high-value routes like checkouts and APIs, with client-side detection, server-side verification, and visibility through the Firewall dashboard.
Vercel BotID is an invisible CAPTCHA with no visible challenges or manual bot management required.
BotID is a new protection layer on Vercel designed for public, high-value routes such as checkouts, signups, AI chat interfaces, LLM-powered endpoints, and public APIs that are targets for sophisticated bots mimicking real user behavior.
Unlike IP-based or heuristic systems, BotID:
Powered by , BotID integrates into your application with a :Kasadatype-safe SDK
BotID traffic is visible in the Firewall dashboard and can be filtered by verdict (pass or fail), user agent, country, IP address, request path, target path, JA4 digest, and host.
Read the or to learn more, or try BotID today.announcementdocumentation
Silently collects thousands of signals that distinguish human users from bot
Mutates these detections on every page load, evading reverse engineering and sophisticated bypasses
Streams attack data into a global machine learning mesh, collectively strengthening protection for all customers
Client-side detection using the component
<BotIdClient>Server-side verification with the function
checkBotIdAutomatic labeling of logs and telemetry for blocked sessions
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