Protect your applications from sophisticated bots with invisible CAPTCHA. Modern bots execute JavaScript, solve CAPTCHAs, and navigate like real users - BotID detects and blocks them without disrupting legitimate traffic.

What BotID Protects Against

Automated attacks - Credential stuffing, brute force attempts
Data scraping - Unauthorized content extraction
API abuse - Excessive automated requests
Spam and fraud - Malicious bot traffic
Resource consumption - Bots consuming expensive compute or inventory

Key Features

Invisible protection - No visible challenges or user friction
Framework support - Works with Next.js, Nuxt, SvelteKit, and more
Deep Analysis mode - Advanced detection powered by Kasada
Privacy-focused - Respects user privacy while providing robust protection
Dynamic detection - Changes methods on every page load to prevent bypasses

Getting Started

Prerequisites

Before setting up BotID, ensure you have a JavaScript project deployed on Vercel.

Installation

npm install botid

Setup Instructions

For complete documentation, visit the official Vercel BotID docs.

1. Configure Redirects

Use the appropriate configuration method for your framework to set up proxy rewrites:

Next.js

// next.config.js
import { withBotId } from 'botid/next/config';

const nextConfig = {
  // Your existing Next.js config
};

export default withBotId(nextConfig);

Nuxt

// nuxt.config.ts
export default defineNuxtConfig({
  modules: ['botid/nuxt'],
});

Other Frameworks

For other frameworks, add the following to your vercel.json:

{
  "rewrites": [
    {
      "source": "/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-a3be-862e0f06eea3/a-4-a/c.js",
      "destination": "https://api.vercel.com/bot-protection/v1/challenge"
    },
    {
      "source": "/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-a3be-862e0f06eea3/:path*",
      "destination": "https://api.vercel.com/bot-protection/v1/proxy/:path*"
    }
  ],
  "headers": [
    {
      "source": "/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-a3be-862e0f06eea3/:path*",
      "headers": [
        {
          "key": "X-Frame-Options",
          "value": "SAMEORIGIN"
        }
      ]
    }
  ]
}

2. Add Client-Side Protection

Next.js 15.3+ (Recommended)

Use initBotId() in instrumentation-client.ts:

// instrumentation-client.ts
import { initBotId } from 'botid/client/core';

initBotId({
  protect: [
    {
      path: '/api/checkout',
      method: 'POST',
    },
    {
      path: '/team/*/activate',
      method: 'POST',
    },
    {
      path: '/api/user/*',
      method: 'POST',
    },
  ],
});

Next.js < 15.3

Mount the <BotIdClient/> component in your layout:

// app/layout.tsx
import { BotIdClient } from 'botid/client';
import { ReactNode } from 'react';

const protectedRoutes = [
  {
    path: '/api/checkout',
    method: 'POST',
  },
];

export default function RootLayout({ children }: RootLayoutProps) {
  return (
    <html lang="en">
      <head>
        <BotIdClient protect={protectedRoutes} />
      </head>
      <body>{children}</body>
    </html>
  );
}

Nuxt

// plugins/botid.client.ts
import { initBotId } from 'botid/client/core';

export default defineNuxtPlugin({
  enforce: 'pre',
  setup() {
    initBotId({
      protect: [{ path: '/api/post-data', method: 'POST' }],
    });
  },
});

SvelteKit

// src/hooks.client.ts
import { initBotId } from 'botid/client/core';

export function init() {
  initBotId({
    protect: [
      {
        path: '/api/post-data',
        method: 'POST',
      },
    ],
  });
}

3. Perform Server-Side Checks

Use checkBotId() on your protected routes:

API Routes

import { checkBotId } from 'botid/server';
import { NextRequest, NextResponse } from 'next/server';

export async function POST(request: NextRequest) {
  const verification = await checkBotId();

  if (verification.isBot) {
    return NextResponse.json({ error: 'Access denied' }, { status: 403 });
  }

  // Your protected logic here
}

Server Actions

'use server';

import { checkBotId } from 'botid/server';

export async function createUser(formData: FormData) {
  const verification = await checkBotId();

  if (verification.isBot) {
    throw new Error('Access denied');
  }

  // Process user data
}

4. Enable Deep Analysis (Recommended)

For advanced bot protection, enable BotID Deep Analysis in your Vercel Dashboard:

Select your Project
Click the Firewall tab
Click Configure
Enable Vercel BotID Deep Analysis

License

MIT - See LICENSE for more information.

FAQs

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Package last updated on 28 Aug 2025

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botid

Vercel BotID powered by Kasada